HW Roesky, F. Schrumpf, and M. Nolte

Total Page:16

File Type:pdf, Size:1020Kb

HW Roesky, F. Schrumpf, and M. Nolte Band 44b Zeitschrift für Naturforschung 1989 Contents Contents of Number 1 New Transition Metal Complexes with the Ligand Me2S(0)=N PPh 2 = N — (In German) Original Communications H. W. R o e sk y , F. S c h r u m p f , and M. N olte- meyer 35 Synthesis and Structure of Tetrameric N,N'-Di- phenylformamidinatoGold(I), [Au(PhNCHNPh ) ] 4 Dibenzoylmethane Reaction with Dichlorophenyl- (In German) phosphine: Oxygen Transfer from Carbon to Phosphorus via a Defined C 2P 0 3 Phosphorane E. H a r t m a n n and J. S tr ä hl e 1 W. V. D a h l h o f f , K. M . T a b a , and R. M ynott 41 Synthesis and Crystal and Molecular Structure of /rans-Dichloro(ethanedial dioximato(l—)-N,N')- Borylation of Sulfamides, Sulfonimines and Sul- (ethanedial dioxime-N,N')rhodium(III) fonediimines (In German) M . M £g n a m is i-B e l o m b£ 5 W. E in h o l z , G. F r e y , and W. H a u b o l d 47 The Structure of [(terf-C4H 9)3PI][W(CO)4I3] — a Con­ 13C and 15N NMR Spectroscopic Study of Some Penta- tribution on the Acceptor Properties of Iodophos- carbonylchromium-Aminophosphane Complexes phonium Ions (In German) (In German) N. K u h n , R. Jü s c h k e , W.-W. d u M o n t , B. W r a c k m e y er , K . S c h a m e l , and M. H erber - M . B a t c h e r , D. B l ä s e r , and R. B o ese 9 HOLD 55 Phase Diagrams of Methyihalogenosilanes with Py­ Photoionization and Ion Fragmentation of SF 4 ridine and Lutidine (In German) (In German) K. H e n s e n and M. D räb ing 63 H.-W. Jo c h im s , E . R ü h l , a n d H. B aum g ä r t el 13 Reactions of Sodium Complexes of Aromatic Ethers Photoionization Mass Spectra of Methyl(tri- with Dichloro(diorganylamino)boranes fluoromethyl)sulfan CH3SCF3 (In German) (In German) G. H a g e n o w , H .-W . Jo c h im s , J. Sa w a t z k i, W. M ar in g g e l e and A. M eller 67 R . M in k w it z , a n d H . B a u m g ä r t e l 17 Vibrational Spectrum of the Cluster Compound Photoion Spectroscopy of Sulfurchloridepenta- Nb6F 15 (In German) fluoride SF5C1, the Ionization Potential of Sulfur- pentafluoride SF 5 (In German) G. K liche and H. G. v o n S c h n e r in g 74 H . B a u m g ä r t e l , H .-W . Jo c h im s , E. R ü h l , Synthesis of Water Soluble Tetrairidium Clusters O. L ö s k in g , and H . W il ln e r 21 Suitable for Heavy Atom Labelling of Proteins Dithiocarbimates from Sulfonamides, Part 1: Prep­ W. Ja h n 79 aration and X-Ray Crystal Structures of K2[S2C = N - S 0 2 -C 6H5] -2H20 and Chemistry on Rigid Interfaces, 9. Properties and Be­ K2[S2C = N - S 0 2 -C 6H 4 -C 1]-2H 20 haviour of Onium Group Modified Aerosils. Some Examples of Interparticular Reactions H .- U . H u m m e l an d U . K o rn 24 (In German) Dithiocarbimates from Sulfonamides, Part 2: Prep­ L. H o rn er and W. R oth 83 aration and X-Ray Crystal Structures of (PPh 4)2[Ni(S2C = N—S0 2 —Ph)2] and The Synthesis of Some Cyclopentadienyliron-Indium (PPh 4)2[Ni(S2C = N —S0 2 —C6H 4 —Cl)2] • 2 H20 Complexes H .- U . H u m m e l an d U . K orn 29 N . C. N o r m a n and P. M. W ebster 91 IV Contents Notes Chemistry of Polyfunctional Molecules, 104. Gold-, Palladium- and Platinumchlorocomplexes Syntheses of Dicyclopentadienyl-Titanium(IV) Sub­ of (±)-2-[N,N-Bis(2-diphenylphosphinoethyl)- stituted Carbodiimides (In German) amino]-tetrahydro-2//-l,3,2-oxazaphosphorine-2- oxide (In German) H. P lenio and H. W. R oesky 94 J. E ll e r m a n n and N . W ill 127 Synthesis and Structure of 2,4.6,8 -Tetrakis(diisopro- pylamino)2,4,6,8-tetrabora-tricyclo-[3.3.0.0' ]- Photochemical Splitting of a Polar Metal —Metal octane (In German) Bond by Metal to Metal Charge Transfer Excita­ tion of [Ph 3PAu—Co(CO)4] (In German) A. K r ä m e r , H. P r it z k o w , and W. S iebert 96 A. V ogler and H. K u n k e l y 132 Synthesis and Silica Gel Promoted Rearrangement of 5-Methylthio-3-carbo-/-butoxy-pent-3-en-2-one The Crystal Structure of [Ca(N3)2(H 20 ) 2] • C6H 14N4 at 100 K (In German) P. B a-lcz ew sk i and M . M ikolajczyk 99 F. A. M a u t n e r , H. KRiscHNER,andCH. K ratky 135 Phase Diagrams of Aluminium Halide-Pyridinium Halide Systems, III. Determination of the Phase Opening of Trinuclear Clusters by Diphosphino- Diagrams Aluminium Bromide-Pyridinium Iodide methane Ligands (In German) and Aluminium Chloride-Pyridinium Bromide R. P. P la n a l p and H. V a h r e n k a m p 139 (In German) G. S e e m a n n and K. H e n s e n 102 Photoredox Reactions of Hg(CN) 2/[Fe(CN)6]4~ and [HgCo 2(CN)10]6_ Induced by Inner-Sphere Metal to Metal Charge Transfer Excitation H. K u n k e l y , G. S t o c h e l , and A. V ogler 145 Tris(benzoyl-thiobenzoyl-methanato-0,S)indium, a Conformer of a Facial Isomer Contents of Number 2 V . D . G u p t a , A. K. M is h r a , H. N ö t h , and K . P olborn 149 Original Communications A Convenient Preparation of Bis(phosphorothioyl) Synthesis and Structure of Trimeric l,5-Bis(p-ethoxy- Sulfides phenyl)pentaazadienido-copper(I) — A Complex with Short Cu —Cu Contacts in a Linear Cu33+ Unit S. M i n , H. Is h ih a r a , T. M u r a i, and S. K ato 153 (In German) Ruthenium Complexes with Diazadienes, IX. A R. S c h m id and J. St r ä h l e 105 New Chromophore from Two Diazadiene Ruthenium Units — Structure and Properties of Synthesis and Structure of ^-Bromo-^-dioxo-bis- [(CO)2(DAD)CH 3R u -R u C H3(DAD)(CO)2] (phthalocyaninato-niobium(V))tribromide, (DAD = ipr—N= C H —CH = N —ipr) (In German) [(PcNb)20 2Br]+BrJ, a Dinuclear Phthalocya- ninato Complex (In German) H. tom D ieck, W. R o h d e , and U. B e h r e n s 158 F. G in gl and J. S t r ä h l e 110 Molecular and Crystal Structure of Two Cyclobuten- 3,4-dione Derivatives: The Dithallium Salt of 1,2- Synthesis and Crystal Structure of Dicyanimino- (T12CMCB) and the 1,2-Diiodocy- [Na-15-Crown-5][WF5(NCl)] (In German) clobuten-3,4-dione (I2CB) A. G o r g e , K. D e h n ic k e , and D . F e n s k e 117 B . L u n e l l i and M . M o nari 169 Detection of the Isotopomeric c/oso-Hydrohexa- Reactive E = C (p—p) 7r-Systems, XIX. F3CP=C(H)F borates 1IB„10B6_„H62_, n = 0-6. by Low Temper­ and F 3CP=C(D)F as Dienophiles (In German) ature Raman Spectroscopy (In German) U. A lt h o ff, J. G r o b e , D. L e V a n , and E.-U. W. P reetz and J. T h e s in g 121 W ÜRTH WEIN 175 Contents V On the Dynamic Structure Behaviour of the Di- The Space Group of (TTM-TTF) 2+(AuC14 ) 2 methylamine—Carbondioxide Complex (Dim- [TTM-TTF = Tetra(methylthio)tetrathiofulva- carb) (In German) lene] R . R a d e g l ia , J. A n d e r s c h , and W . S chroth 181 P. G. Jo n e s 243 Radical Ions, 81. ENDOR Spectroscopic Investiga­ High Catalytic Activity of Vanadium(V) Oxo-Poly- tions of Radical Cations of Aromatic Organosulfur mers for Oxidative Cleavage of Catechol Compounds (In German) Y. N ish id a and H. K ikuchi 245 H . B o c k . B. H ie r h o l z e r , and P. R ittmeyer 187 Synthesis and Crystal Structure of the Amidinato Complex Ph—C(NSiMe 3)2TeCl3 (In German) Contents of Number 3 E . H ey , C h . E rgf.z in g e r , and K. D e h n ic k e 205 a-Aminoalkylation of Enamines with Iminium- Original Communications tetrachloro-aluminates (In German) Seleno-antimonates(V): Preparation and Crystal N. R isch and A. E sser 208 Structure of Na3SbSe4, K3SbSe4 and [Ba(en)4]2[Ba(en)3](SbSe4) 2 (In German) Organometallic Compounds with o-Phenylene Substituents, Part XVI. 2 :1-Complexes of 2,3,7,8- B.
Recommended publications
  • The Chemistry of Carbene-Stabilized
    THE CHEMISTRY OF CARBENE-STABILIZED MAIN GROUP DIATOMIC ALLOTROPES by MARIHAM ABRAHAM (Under the Direction of Gregory H. Robinson) ABSTRACT The syntheses and molecular structures of carbene-stabilized arsenic derivatives of 1 1 i 1 1 AsCl3 (L :AsCl3 (1); L : = :C{N(2,6- Pr2C6H3)CH}2), and As2 (L :As–As:L (2)), are presented herein. The potassium graphite reduction of 1 afforded the carbene-stabilized diarsenic complex, 2. Notably, compound 2 is the first Lewis base stabilized diatomic molecule of the Group 13–15 elements, in the formal oxidation state of zero, in the fourth period or lower of the Periodic Table. Compound 2 contains one As–As σ-bond and two lone pairs of electrons on each arsenic atom. In an effort to study the chemistry of the electron-rich compound 2, it was combined with an electron-deficient Lewis acid, GaCl3. The addition of two equivalents of GaCl3 to 2 resulted in one-electron oxidation of 2 to 1 1 •+ – •+ – give [L :As As:L ] [GaCl4] (6 [GaCl4] ). Conversely, the addition of four equivalents of GaCl3 to 2 resulted in two- electron oxidation of 2 to give 1 1 2+ – 2+ – •+ [L :As=As:L ] [GaCl4 ]2 (6 [GaCl4 ]2). Strikingly, 6 represents the first arsenic radical to be structurally characterized in the solid state. The research project also explored the reactivity of carbene-stabilized disilicon, (L1:Si=Si:L1 (7)), with borane. The reaction of 7 with BH3·THF afforded two unique compounds: one containing a parent silylene (:SiH2) unit (8), and another containing a three-membered silylene ring (9).
    [Show full text]
  • Phosphorus: from the Stars to Land &
    Phosphorus: From the Stars to Land & Sea The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Cummins, Christopher C. “Phosphorus: From the Stars to Land & Sea.” Daedalus 143, no. 4 (October 2014): 9–20. As Published http://dx.doi.org/10.1162/DAED_a_00301 Publisher MIT Press Version Final published version Citable link http://hdl.handle.net/1721.1/92509 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Phosphorus: From the Stars to Land & Sea Christopher C. Cummins Abstract: The chemistry of the element phosphorus offers a window into the diverse ½eld of inorganic chemistry. Fundamental investigations into some simple molecules containing phosphorus reveal much about the rami½cations of this element’s position in the periodic table and that of its neighbors. Addition - ally, there are many phosphorus compounds of commercial importance, and the industry surrounding this element resides at a crucial nexus of natural resource stewardship, technology, and modern agriculture. Questions about our sources of phosphorus and the applications for which we deploy it raise the provocative issue of the human role in the ongoing depletion of phosphorus deposits, as well as the transfer of phos- phorus from the land into the seas. Inorganic chemistry can be de½ned as “the chem- istry of all the elements of the periodic table,”1 but as such, the ½eld is impossibly broad, encompassing everything from organic chemistry to materials sci- ence and enzymology.
    [Show full text]
  • Chemical Names and CAS Numbers Final
    Chemical Abstract Chemical Formula Chemical Name Service (CAS) Number C3H8O 1‐propanol C4H7BrO2 2‐bromobutyric acid 80‐58‐0 GeH3COOH 2‐germaacetic acid C4H10 2‐methylpropane 75‐28‐5 C3H8O 2‐propanol 67‐63‐0 C6H10O3 4‐acetylbutyric acid 448671 C4H7BrO2 4‐bromobutyric acid 2623‐87‐2 CH3CHO acetaldehyde CH3CONH2 acetamide C8H9NO2 acetaminophen 103‐90‐2 − C2H3O2 acetate ion − CH3COO acetate ion C2H4O2 acetic acid 64‐19‐7 CH3COOH acetic acid (CH3)2CO acetone CH3COCl acetyl chloride C2H2 acetylene 74‐86‐2 HCCH acetylene C9H8O4 acetylsalicylic acid 50‐78‐2 H2C(CH)CN acrylonitrile C3H7NO2 Ala C3H7NO2 alanine 56‐41‐7 NaAlSi3O3 albite AlSb aluminium antimonide 25152‐52‐7 AlAs aluminium arsenide 22831‐42‐1 AlBO2 aluminium borate 61279‐70‐7 AlBO aluminium boron oxide 12041‐48‐4 AlBr3 aluminium bromide 7727‐15‐3 AlBr3•6H2O aluminium bromide hexahydrate 2149397 AlCl4Cs aluminium caesium tetrachloride 17992‐03‐9 AlCl3 aluminium chloride (anhydrous) 7446‐70‐0 AlCl3•6H2O aluminium chloride hexahydrate 7784‐13‐6 AlClO aluminium chloride oxide 13596‐11‐7 AlB2 aluminium diboride 12041‐50‐8 AlF2 aluminium difluoride 13569‐23‐8 AlF2O aluminium difluoride oxide 38344‐66‐0 AlB12 aluminium dodecaboride 12041‐54‐2 Al2F6 aluminium fluoride 17949‐86‐9 AlF3 aluminium fluoride 7784‐18‐1 Al(CHO2)3 aluminium formate 7360‐53‐4 1 of 75 Chemical Abstract Chemical Formula Chemical Name Service (CAS) Number Al(OH)3 aluminium hydroxide 21645‐51‐2 Al2I6 aluminium iodide 18898‐35‐6 AlI3 aluminium iodide 7784‐23‐8 AlBr aluminium monobromide 22359‐97‐3 AlCl aluminium monochloride
    [Show full text]
  • Staging Category Base Rate Article Description HTS Heading
    HTS Heading/Article Subheading description Base Rate Staging Category I. CHEMICAL ELEMENTS 2801 Fluorine, chlorine, bromine and iodine: 28011000 -Chlorine Free E 28012000 -Iodine Free E 280130 -Fluorine; bromine: 28013010 --Fluorine 3.7% A 28013020 --Bromine 5.5% A 28020000 Sulfur, sublimed or precipitated; colloidal sulfur Free E Carbon (carbon blacks and other forms of carbon not 28030000 elsewhere specified or included) Free E 2804 Hydrogen, rare gases and other nonmetals: 28041000 -Hydrogen 3.7% A -Rare gases: 28042100 --Argon 3.7% A 28042900 --Other 3.7% A 28043000 -Nitrogen 3.7% A 28044000 -Oxygen 3.7% A 28045000 -Boron; tellurium Free E -Silicon: --Containing by weight not less than 99.99 percent of 28046100 silicon Free E 280469 --Other: ---Containing by weight less than 99.99 percent but not 28046910 less than 99 percent of silicon 5.3% B 28046950 ---Other 5.5% B 28047000 -Phosphorus Free E 28048000 -Arsenic Free E 28049000 -Selenium Free E Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or 2805 interalloyed; mercury: -Alkali metals: 28051100 --Sodium 5.3% B 28051900 --Other 5.5% B -Alkaline-earth metals: 28052100 --Calcium 3% A 280522 --Strontium and barium: 28052210 ---Strontium 3.7% A 28052220 ---Barium Free E -Rare-earth metals, scandium and yttrium, whether or 28053000 not intermixed or interalloyed 5% A 28054000 -Mercury 1.7% A II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NONMETALS Hydrogen chloride (Hydrochloric acid); chlorosulfuric 2806 acid: 28061000 -Hydrogen
    [Show full text]
  • Principles of Chemical Nomenclature a GUIDE to IUPAC RECOMMENDATIONS Principles of Chemical Nomenclature a GUIDE to IUPAC RECOMMENDATIONS
    Principles of Chemical Nomenclature A GUIDE TO IUPAC RECOMMENDATIONS Principles of Chemical Nomenclature A GUIDE TO IUPAC RECOMMENDATIONS G.J. LEIGH OBE TheSchool of Chemistry, Physics and Environmental Science, University of Sussex, Brighton, UK H.A. FAVRE Université de Montréal Montréal, Canada W.V. METANOMSKI Chemical Abstracts Service Columbus, Ohio, USA Edited by G.J. Leigh b Blackwell Science © 1998 by DISTRIBUTORS BlackweilScience Ltd Marston Book Services Ltd Editorial Offices: P0 Box 269 Osney Mead, Oxford 0X2 0EL Abingdon 25 John Street, London WC1N 2BL Oxon 0X14 4YN 23 Ainslie Place, Edinburgh EH3 6AJ (Orders:Tel:01235 465500 350 Main Street, Maiden Fax: MA 02 148-5018, USA 01235 465555) 54 University Street, Carlton USA Victoria 3053, Australia BlackwellScience, Inc. 10, Rue Casmir Delavigne Commerce Place 75006 Paris, France 350 Main Street Malden, MA 02 148-5018 Other Editorial Offices: (Orders:Tel:800 759 6102 Blackwell Wissenschafts-Verlag GmbH 781 388 8250 KurfUrstendamm 57 Fax:781 388 8255) 10707 Berlin, Germany Canada Blackwell Science KK Copp Clark Professional MG Kodenmacho Building 200Adelaide St West, 3rd Floor 7—10 Kodenmacho Nihombashi Toronto, Ontario M5H 1W7 Chuo-ku, Tokyo 104, Japan (Orders:Tel:416 597-1616 800 815-9417 All rights reserved. No part of Fax:416 597-1617) this publication may be reproduced, stored in a retrieval system, or Australia BlackwellScience Pty Ltd transmitted, in any form or by any 54 University Street means, electronic, mechanical, Carlton, Victoria 3053 photocopying, recording or otherwise, (Orders:Tel:39347 0300 except as permitted by the UK Fax:3 9347 5001) Copyright, Designs and Patents Act 1988, without the prior permission of the copyright owner.
    [Show full text]
  • A STUDY of Bls-Diels-ALDER ADDUCTS of DIMETHYL ACETYLENEDECARBOXYLATE and CERWN FURANS
    PART I SYRTHETIC APPROACHES TO 8b, 86- DIMETHYLPYRASYCLENE PART I! A STUDY OF BlS-DiELS-ALDER ADDUCTS OF DIMETHYL ACETYLENEDECARBOXYLATE AND CERWN FURANS Thesis for the Degree of Ph. D. MICHIGAN STATE UNIVERSITY JAMES DUANE S‘LEE 1 96 9 in“ LIBRARY 1 Michigan State University This is to certify that the thesis entitled PART I: SYNTHETIC APPROACHES TO 8b, 8c-DIMETHYLPYRACYCLENE PART II: A STUDY OF BIS-DIELS-ALDER ADDUCTS OF DIMETHYL ACETYLENEDICARBOXYLATE AND CERTAIN FURMS presented by JAMES DUANE SLEE has been accepted towards fulfillment of the requirements for Ph. D. degree in Chemistry Major profe sor Date September 3, 1969 0-169 . w J '7 ML- ‘. , Income av ' ‘5 ‘. 5i ‘HOAG & SONS' ' . tayxtmqrmnt a '- n---'- 'n- . "riot-'— Q ABSTRACT PART I SYNTHETIC APPROACHES TO 3b.BC-DIMETHYLPYRACYCLENE PART II A STUDY OF BIS-DIEL59ALDER ADDUCTS OP DIMETHYL ACETYLENEDICARBOXYLATE AND CERTAIN FURANS BY James Duane Slee Synthetic methods for preparing 8b.8c-dimethylpyracy- clene (4) were investigated. A useful precursor to g'ap- peared to be dimethyl 2a,4a:6a,8a-diepoxy-l,2,5,6-tetrahydro- cyclopent[£,g]acenaphthalene-Bb,8c-dicarboxy1ate (z) (1). CH, /’ \\ \\ 1’ CH, i Reduction of Z'with lithium aluminum hydride in tetra- hydrofuran gave 2a,4az6a,8a-diepoxy-8b,8c-di(hydroxymcLhyl)- 1,2,5,6-tetrahydrocyclopent[f,g]acenaphthalcnc (ya). James Duane Slee Treatment of diol lg’with‘p-toluenesulfonyl chloride in pyridine led to 2a,4a:6a,8a-diepoxy-8b,8c-di(hydroxymethyl pftoluenesulfonate)-1,2,5,6-tetrahydrocyclopent[f,g]acenaph- thalene (1E). Reduction of 12 with lithium aluminum hydride gave rise to diol 123 Displacement of the tosylate groups of lg with sodium iodide under various conditions failed.
    [Show full text]
  • Phosphorus: from the Stars to Land &
    Phosphorus: From the Stars to Land & Sea Christopher C. Cummins Abstract: The chemistry of the element phosphorus offers a window into the diverse ½eld of inorganic chemistry. Fundamental investigations into some simple molecules containing phosphorus reveal much about the rami½cations of this element’s position in the periodic table and that of its neighbors. Addition - ally, there are many phosphorus compounds of commercial importance, and the industry surrounding this element resides at a crucial nexus of natural resource stewardship, technology, and modern agriculture. Questions about our sources of phosphorus and the applications for which we deploy it raise the provocative issue of the human role in the ongoing depletion of phosphorus deposits, as well as the transfer of phos- phorus from the land into the seas. Inorganic chemistry can be de½ned as “the chem- istry of all the elements of the periodic table,”1 but as such, the ½eld is impossibly broad, encompassing everything from organic chemistry to materials sci- ence and enzymology. One way to gain insight into and appreciate the rapidly moving and diverse ½eld of inorganic chemistry is to view the science from the perspective of the elements themselves, since they are the basic ingredients for assembling mole- cules or materials–and indeed, all matter, living or in animate. Although phosphorus may be less cele- brated than carbon or hydrogen, it joins those ele- ments (along with nitrogen, oxygen, and sulfur) to con stitute the six “biogenic elements” (those needed CHRISTOPHER C. CUMMINS,a Fellow of the American Academy in large quantities to make living organisms; see Fig - 2 since 2008, is Professor of Chemis - ure 1).
    [Show full text]
  • Metal-Template-Directed Synthesis of Diphosphorus Compounds Through Intramolecular Phosphinidene Additions
    FULL PAPER Metal-Template-Directed Synthesis of Diphosphorus Compounds through Intramolecular Phosphinidene Additions Mark J. M. Vlaar,[a] Sander G. A. van Assema,[a] Frans J. J. de Kanter,[a] Marius Schakel,[a] Anthony L. Spek,[b] Martin Lutz,[b] and Koop Lammertsma*[a] Abstract: Heating the nonchelating cis- lene ligand affords the diphos complex a highly strained, unstable intermediate bis-7-phosphanorbornadiene-[Mo(CO)4] 18. Its crystal structure exhibits an product. Scission of its PMo bond complex (13) results in the thermal extremely small P-Mo-P bite-angle for generates a free coordination site, which decomposition of one of the 7-phospha- a five-membered chelate ring. The sim- is then occupied by either CO or a norbornadiene groups. The phosphini- ilar intramolecular 1,2-addition to a phosphole to yield complexes 22 and 23, dene thus generated adds intramolecu- CC bond of a phosphole ligand gives respectively. The analogous intermolec- larly to a CC bond of the other ligand ular addition of [PhPW(CO)5]toa to give the novel diphosphorus complex [phosphole-W(CO) ] complex gives the Keywords: cage compounds ´ 5 14. This reaction constitutes a metal- di-[W(CO) ] complexed adduct 28.The molybdenum ´ P ligands ´ 5 template-directed synthesis. Likewise, phosphinidene complexes ´ directing effect of the metal on the intra- the intramolecular phosphinidene addi- phosphorus heterocycles and intermolecular additions is dis- tion to the CC bond of a Mo-phospho- cussed. Introduction Ph W(CO)5 Ph W(CO)5 P P The first phosphorus analogues of carbenes were reported two MeO2C Me [1] 55 oC/CuCl decades ago.
    [Show full text]
  • Synthesis and Characterisation of Phosphenium Ions with Aromatic Amido Substituents
    Durham E-Theses Synthesis and Characterisation of Phosphenium Ions with Aromatic Amido Substituents MESSINIS, ANTONIOS,MARINOU How to cite: MESSINIS, ANTONIOS,MARINOU (2010) Synthesis and Characterisation of Phosphenium Ions with Aromatic Amido Substituents, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/218/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk 2 Synthesis and Characterisation of Phosphenium Ions with Aromatic Amido Substituents Thesis submitted for the Degree of Master of Science By Antonis M. Messinis Department of Chemistry Durham University December 2009 Table of Contents Acknowledgements........................................................................................................v Abstract.........................................................................................................................vi
    [Show full text]
  • Phosphorus: from the Stars to Land & Sea
    Phosphorus: From the Stars to Land & Sea Christopher C. Cummins Abstract: The chemistry of the element phosphorus offers a window into the diverse ½eld of inorganic chemistry. Fundamental investigations into some simple molecules containing phosphorus reveal much about the rami½cations of this element’s position in the periodic table and that of its neighbors. Addition - ally, there are many phosphorus compounds of commercial importance, and the industry surrounding this element resides at a crucial nexus of natural resource stewardship, technology, and modern agriculture. Questions about our sources of phosphorus and the applications for which we deploy it raise the provocative issue of the human role in the ongoing depletion of phosphorus deposits, as well as the transfer of phos- phorus from the land into the seas. Inorganic chemistry can be de½ned as “the chem- istry of all the elements of the periodic table,”1 but as such, the ½eld is impossibly broad, encompassing everything from organic chemistry to materials sci- ence and enzymology. One way to gain insight into and appreciate the rapidly moving and diverse ½eld of inorganic chemistry is to view the science from the perspective of the elements themselves, since they are the basic ingredients for assembling mole- cules or materials–and indeed, all matter, living or in animate. Although phosphorus may be less cele- brated than carbon or hydrogen, it joins those ele- ments (along with nitrogen, oxygen, and sulfur) to con stitute the six “biogenic elements” (those needed CHRISTOPHER C. CUMMINS,a Fellow of the American Academy in large quantities to make living organisms; see Fig - 2 since 2008, is Professor of Chemis - ure 1).
    [Show full text]
  • Low Oxidation State Diphosphorus and Diarsenic Compounds Stabilized by N-Heterocyclic Carbenes
    Low oxidation state diphosphorus and diarsenic compounds stabilized by N-heterocyclic carbenes Chelsea Hadsall Literature Seminar November 10, 2014 Although the allotropes of phosphorus and arsenic have been extensively studied, the chemistry of their diatomic forms has remained elusive. The free diphosphorus molecule P2 forms only at 1 temperatures above 800 °C, and the free diarsenic molecule As2 has never been directly observed. Triply bonded dipnictogen units, however, are known to exist as 4-, 6-, or 8-electron donor ligands in certain transition metal carbonyl complexes.2 In recent years, reactive diboron and disilicon molecules have been stabilized by forming adducts with N-heterocyclic carbenes (NHCs).2 With these successes, the use of NHCs has been extended to the stabilization of group 15 diatomics. Specifically, Robinson and coworkers have demonstrated that zero valent dipnictogen units can be stabilized by forming adducts with bulky, aromatic NHCs.2 The NHCs, which serve as neutral two electron donors, convert the triply bonded dipnictogen core into a singly bonded dipnictinidene structure with four lone pairs (two on each pnictogen atom). The P2 and As2 units convert into the singly-bonded form in order to create the empty p-orbitals necessary for adduct formation with the NHCs. To synthesize a stable compound with a diphosphorus core, the adduct L:PCl3 (1-P) was first synthesized in almost quantitative yield (Figure 1)3 by treatment of phosphorus trichloride with the desired bulky NHC.4 In this phosphorus(III) compound, the phosphorus center has a trigonal bipyramidal geometry in which one equatorial site is occupied by a lone pair (the four atoms coordinated to phosphorus thus form a see-saw structure).
    [Show full text]
  • Christopher C. Cummins
    Christopher C. Cummins 6-435 Department of Chemistry Phone: (617) 253-5332 Massachusetts Institute of Technology Email: [email protected] 77 Massachusetts Avenue Homepage: https://ccclab.mit.edu Cambridge, MA 02139-4307 Education Ph.D. Inorganic Chemistry, Massachusetts Institute of Technology, 1993. Thesis advisor: Richard R. Schrock A.B. Chemistry, Cornell University, 1989. Undergraduate research mentor: Peter T. Wolczanski Experience Massachusetts Institute of Technology, Henry Dreyfus Professor of Chemistry, 2015{present Massachusetts Institute of Technology, Professor, 1996{present Massachusetts Institute of Technology, Assistant Professor, 1993{1996 Research Interests Exploratory synthesis and reactivity studies involving elements from across the periodic table. Some partic- ular research themes are as follows: synthesis stemming from the elements nitrogen and phosphorus, small molecule activation, the generation and study of reactive intermediates, new inorganic molecules and lig- ands, carbon dioxide utilization, electronic structure and chemical bonding, anion receptor coordination and cryptand chemistry. Honors and Awards Honorary Professor of the Institute, IISER Kolkata, 2018-2021 Linus Pauling Medal, 2017 National Academy of Sciences, Elected Member 2017 Fellow, Hagler Institute for Advanced Study at Texas A&M University, 2016-2017 RSC Ludwig Mond Award 2013 Inaugural ACS-DIC Inorganic Chemistry Lectureship Award 2013 American Academy of Arts and Sciences, Elected Member 2008 Raymond and Beverly Sackler Prize in the Physical Sciences 2007 ACS F. Albert Cotton Award in Synthetic Inorganic Chemistry 2007 Corresponding Member, Akademie der Wissenschaften zu G¨ottingen2005 Alexander von Humboldt Research Award 2002 Dannie-Heineman Preis of the Akademie der Wissenschaften zu G¨ottingen2001 Technology Review Magazine TR100 Award 1999 NSF Alan T. Waterman Award 1998 ACS Award in Pure Chemistry 1998 Christopher C.
    [Show full text]