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Title Effect of Ph Values on the Formation and Solubility Of
CORE Metadata, citation and similar papers at core.ac.uk Provided by Kyoto University Research Information Repository Effect of pH Values on the Formation and Solubility of Zinc Title Compounds Takada, Toshio; Kiyama, Masao; Torii, Hideo; Asai, Author(s) Toshihiro; Takano, Mikio; Nakanishi, Norihiko Bulletin of the Institute for Chemical Research, Kyoto Citation University (1978), 56(5): 242-246 Issue Date 1978-12-20 URL http://hdl.handle.net/2433/76795 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University Bull.Inst. Chem.Res., Kyoto Univ., Vol. 56, No. 5, 1978 Effect of pH Values on the Formation and Solubility of Zinc Compounds Toshio TAKADA,Masao KIYAMA,Hideo TORII, Toshihiro AsAI* Mikio TAKANO**,and Norihiko NAKANISHI** ReceivedJuly 31, 1978 Aqueoussuspensions, prepared by mixingthe solution of NaOHand that ofzinc sulfate,chloride or nitrate,were subjected to agingat 25,50, and 70°C. Examinationof the productsby X-ray pow- der diffractionshowed that zinc oxide,basic zinc sulfate, chloride and nitrate are formeddepending mainlyon the pH. Their solubilitiesin the suspensionmedia with differentpH valueswere deter- mined at 25°C. INTRODUCTION In our laboratory, iron oxides and oxide hydroxides were prepared by wet methods such as the hydrolysis and slow oxidation of aqueous solutions of iron salts. The condi- tions for the formation of the oxides and oxide hydroxides') were reported together with their properties.2l The formation of a variety of products must be considered to be due to the difference in the nature -
Evolution and Understanding of the D-Block Elements in the Periodic Table Cite This: Dalton Trans., 2019, 48, 9408 Edwin C
Dalton Transactions View Article Online PERSPECTIVE View Journal | View Issue Evolution and understanding of the d-block elements in the periodic table Cite this: Dalton Trans., 2019, 48, 9408 Edwin C. Constable Received 20th February 2019, The d-block elements have played an essential role in the development of our present understanding of Accepted 6th March 2019 chemistry and in the evolution of the periodic table. On the occasion of the sesquicentenniel of the dis- DOI: 10.1039/c9dt00765b covery of the periodic table by Mendeleev, it is appropriate to look at how these metals have influenced rsc.li/dalton our understanding of periodicity and the relationships between elements. Introduction and periodic tables concerning objects as diverse as fruit, veg- etables, beer, cartoon characters, and superheroes abound in In the year 2019 we celebrate the sesquicentennial of the publi- our connected world.7 Creative Commons Attribution-NonCommercial 3.0 Unported Licence. cation of the first modern form of the periodic table by In the commonly encountered medium or long forms of Mendeleev (alternatively transliterated as Mendelejew, the periodic table, the central portion is occupied by the Mendelejeff, Mendeléeff, and Mendeléyev from the Cyrillic d-block elements, commonly known as the transition elements ).1 The periodic table lies at the core of our under- or transition metals. These elements have played a critical rôle standing of the properties of, and the relationships between, in our understanding of modern chemistry and have proved to the 118 elements currently known (Fig. 1).2 A chemist can look be the touchstones for many theories of valence and bonding. -
Quinolines from the Cyclocondensation of Isatoic Anhydride with Ethyl Acetoacetate: Preparation of Ethyl 4- Hydroxy-2-Methylquinoline-3-Carboxylate and Derivatives
Supporting Information for Quinolines from the cyclocondensation of isatoic anhydride with ethyl acetoacetate: preparation of ethyl 4- hydroxy-2-methylquinoline-3-carboxylate and derivatives Nicholas G. Jentsch, Jared D. Hume, Emily B. Crull, Samer M. Beauti, Amy H. Pham, Julie A. Pigza, Jacques J. Kessl and Matthew G. Donahue* Address: 1Department of Chemistry and Biochemistry, University of Southern Mississippi, 118 College Drive #5043, Hattiesburg, MS 39406 Email: Matthew G. Donahue - [email protected] *Corresponding author Experimental procedures and analytical data Table of contents General Procedures .......................................................................................................... S3 1H-Benzo[d][1,3]oxazine-2,4-dione (9a): ........................................................................... S7 6-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione (9b): ............................................................ S8 6-Iodo-1H-benzo[d][1,3]oxazine-2,4-dione (9c): ................................................................ S8 6-Hydroxy-1H-benzo[d][1,3]oxazine-2,4-dione (9d): ......................................................... S9 6-Nitro-1H-benzo[d][1,3]oxazine-2,4-dione(9e): ................................................................ S9 7-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione (9f): ............................................................. S9 S1 7-Nitro-1H-benzo[d][1,3]oxazine-2,4-dione (9g): ............................................................... S10 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione -
NBO Applications, 2020
NBO Bibliography 2020 2531 publications – Revised and compiled by Ariel Andrea on Aug. 9, 2021 Aarabi, M.; Gholami, S.; Grabowski, S. J. S-H ... O and O-H ... O Hydrogen Bonds-Comparison of Dimers of Thiocarboxylic and Carboxylic Acids Chemphyschem, (21): 1653-1664 2020. 10.1002/cphc.202000131 Aarthi, K. V.; Rajagopal, H.; Muthu, S.; Jayanthi, V.; Girija, R. Quantum chemical calculations, spectroscopic investigation and molecular docking analysis of 4-chloro- N-methylpyridine-2-carboxamide Journal of Molecular Structure, (1210) 2020. 10.1016/j.molstruc.2020.128053 Abad, N.; Lgaz, H.; Atioglu, Z.; Akkurt, M.; Mague, J. T.; Ali, I. H.; Chung, I. M.; Salghi, R.; Essassi, E.; Ramli, Y. Synthesis, crystal structure, hirshfeld surface analysis, DFT computations and molecular dynamics study of 2-(benzyloxy)-3-phenylquinoxaline Journal of Molecular Structure, (1221) 2020. 10.1016/j.molstruc.2020.128727 Abbenseth, J.; Wtjen, F.; Finger, M.; Schneider, S. The Metaphosphite (PO2-) Anion as a Ligand Angewandte Chemie-International Edition, (59): 23574-23578 2020. 10.1002/anie.202011750 Abbenseth, J.; Goicoechea, J. M. Recent developments in the chemistry of non-trigonal pnictogen pincer compounds: from bonding to catalysis Chemical Science, (11): 9728-9740 2020. 10.1039/d0sc03819a Abbenseth, J.; Schneider, S. A Terminal Chlorophosphinidene Complex Zeitschrift Fur Anorganische Und Allgemeine Chemie, (646): 565-569 2020. 10.1002/zaac.202000010 Abbiche, K.; Acharjee, N.; Salah, M.; Hilali, M.; Laknifli, A.; Komiha, N.; Marakchi, K. Unveiling the mechanism and selectivity of 3+2 cycloaddition reactions of benzonitrile oxide to ethyl trans-cinnamate, ethyl crotonate and trans-2-penten-1-ol through DFT analysis Journal of Molecular Modeling, (26) 2020. -
Supporting Information Lewis Acid–Base Synergistic Catalysis Of
Electronic Supplementary Material (ESI) for ChemComm. This journal is © The Royal Society of Chemistry 2020 Supporting information Lewis acid–base synergistic catalysis of cationic halogen-bonding-donors with nucleophilic counter anions Koki Torita,a Ryosuke Haraguchi,*b Yoshitsugu Morita,a Satoshi Kemmochi,a Teruyuki Komatsu,a and Shin-ichi Fukuzawa*a aDepartment of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, 112-8551 Tokyo, Japan bDepartment of Applied Chemistry, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan. Contents Instrumentation and Chemicals S2 Effect of Counter Anions on the Catalytic Activity S4 Effect of Water on the Catalytic Efficiency S4 NMR Titration Experiment S5 Experimental Procedure S7 Characterization Data S11 Theoretical Study S18 NMR Spectra Data S38 References S77 S1 Instrumentation and Chemicals All manipulations of oxygen- and moisture-sensitive materials were conducted under argon or nitrogen atmosphere in a flame dried Schlenk flask. Nuclear magnetic resonance spectra were taken on a JEOL ECA spectrometer using tetramethylsilane for 1 H NMR as an internal standard (δ = 0 ppm) when CDCl3 was used as a solvent, using 1 CD3CN for H NMR as an internal standard (δ = 1.94 ppm) when CD3CN was used as a 1 solvent, using (CD3)2SO for H NMR as an internal standard (δ = 2.50 ppm) when 13 (CD3)2SO was used as a solvent, using CDCl3 for C NMR as an internal standard (δ = 13 77.16 ppm) when CDCl3 was used as a solvent, using CD3CN for C NMR as an internal standard (δ = 118.26 ppm) when CD3CN was used as a solvent, using (CD3)2SO 13 for C NMR as an internal standard (δ = 39.52 ppm) when (CD3)2SO was used as a solvent. -
Cyanosilylation of Aldehydes Catalyzed by Ag(I)- and Cu(II)-Arylhydrazone Coordination Polymers in Conventional and in Ionic Liquid Media
catalysts Article Cyanosilylation of Aldehydes Catalyzed by Ag(I)- and Cu(II)-Arylhydrazone Coordination Polymers in Conventional and in Ionic Liquid Media Gonçalo A. O. Tiago 1, Kamran T. Mahmudov 1,2,*, M. Fátima C. Guedes da Silva 1,* , Ana P. C. Ribeiro 1,* , Luís C. Branco 3, Fedor I. Zubkov 4 and Armando J. L. Pombeiro 1 1 Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049–001 Lisboa, Portugal; [email protected] (G.A.O.T.); [email protected] (A.J.L.P.) 2 Department of Chemistry, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan 3 LAQV-REQUINTE, Departamento de Química, Faculdade de Ciências e Tecnologias da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal; [email protected] 4 Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian; [email protected] * Correspondence: [email protected] or [email protected] (K.T.M.); [email protected] (M.F.C.G.d.S.); [email protected] (A.P.C.R.) Received: 22 February 2019; Accepted: 15 March 2019; Published: 20 March 2019 0 Abstract: The novel Ag(I) and Cu(II) coordination polymers [Ag(m3-1κO;2:3κO ;4κN-HL)]n·n/2H2O(1) − and [Cu(en)2(m-1κO;2κN-L)]n·nH2O(2) [HL = 2-(2-(1-cyano-2-oxopropylidene)hydrazinyl)benzene sulfonate] were synthesized and characterized by IR and ESI-MS spectroscopies, elemental and single crystal X-ray diffraction analyses. -
Ion in Fluorescence Tuning of Tridentate Pincers: a Review
molecules Review The Role of Zinc(II) Ion in Fluorescence Tuning of Tridentate Pincers: A Review Rosita Diana and Barbara Panunzi * Department of Agriculture, University of Napoli Federico II, via Università 100, 80055 Portici NA, Italy; [email protected] * Correspondence: [email protected] Academic Editors: Jorge Bañuelos Prieto and Ugo Caruso Received: 6 October 2020; Accepted: 25 October 2020; Published: 28 October 2020 Abstract: Tridentate ligands are simple low-cost pincers, easy to synthetize, and able to guarantee stability to the derived complexes. On the other hand, due to its unique mix of structural and optical properties, zinc(II) ion is an excellent candidate to modulate the emission pattern as desired. The present work is an overview of selected articles about zinc(II) complexes showing a tuned fluorescence response with respect to their tridentate ligands. A classification of the tridentate pincers was carried out according to the binding donor atom groups, specifically nitrogen, oxygen, and sulfur donor atoms, and depending on the structure obtained upon coordination. Fluorescence properties of the ligands and the related complexes were compared and discussed both in solution and in the solid state, keeping an eye on possible applications. Keywords: zinc ion; fluorescence; tridentate ligand 1. Introduction Over the past 20 years, fluorescence-responsive compounds are increasingly required for many technological applications, from lighting and switch devices to bio-imaging and analytical probes. Materials based on transition metal complexes were advantageously utilized. In this area, interest is growing in the abundant, less expensive, and environmentally “green” zinc(II) metal cation. Today, science is in great demand to address the challenge of sustainability. -
1 Abietic Acid R Abrasive Silica for Polishing DR Acenaphthene M (LC
1 abietic acid R abrasive silica for polishing DR acenaphthene M (LC) acenaphthene quinone R acenaphthylene R acetal (see 1,1-diethoxyethane) acetaldehyde M (FC) acetaldehyde-d (CH3CDO) R acetaldehyde dimethyl acetal CH acetaldoxime R acetamide M (LC) acetamidinium chloride R acetamidoacrylic acid 2- NB acetamidobenzaldehyde p- R acetamidobenzenesulfonyl chloride 4- R acetamidodeoxythioglucopyranose triacetate 2- -2- -1- -β-D- 3,4,6- AB acetamidomethylthiazole 2- -4- PB acetanilide M (LC) acetazolamide R acetdimethylamide see dimethylacetamide, N,N- acethydrazide R acetic acid M (solv) acetic anhydride M (FC) acetmethylamide see methylacetamide, N- acetoacetamide R acetoacetanilide R acetoacetic acid, lithium salt R acetobromoglucose -α-D- NB acetohydroxamic acid R acetoin R acetol (hydroxyacetone) R acetonaphthalide (α)R acetone M (solv) acetone ,A.R. M (solv) acetone-d6 RM acetone cyanohydrin R acetonedicarboxylic acid ,dimethyl ester R acetonedicarboxylic acid -1,3- R acetone dimethyl acetal see dimethoxypropane 2,2- acetonitrile M (solv) acetonitrile-d3 RM acetonylacetone see hexanedione 2,5- acetonylbenzylhydroxycoumarin (3-(α- -4- R acetophenone M (LC) acetophenone oxime R acetophenone trimethylsilyl enol ether see phenyltrimethylsilyl... acetoxyacetone (oxopropyl acetate 2-) R acetoxybenzoic acid 4- DS acetoxynaphthoic acid 6- -2- R 2 acetylacetaldehyde dimethylacetal R acetylacetone (pentanedione -2,4-) M (C) acetylbenzonitrile p- R acetylbiphenyl 4- see phenylacetophenone, p- acetyl bromide M (FC) acetylbromothiophene 2- -5- -
SAFETY DATA SHEET Revision Date 09/22/2021 Print Date 09/25/2021
Version 6.3 SAFETY DATA SHEET Revision Date 09/22/2021 Print Date 09/25/2021 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1 Product identifiers Product name : Trimethylsilyl cyanide Product Number : 212849 Brand : Aldrich CAS-No. : 7677-24-9 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances 1.3 Details of the supplier of the safety data sheet Company : Sigma-Aldrich Inc. 3050 SPRUCE ST ST. LOUIS MO 63103 UNITED STATES Telephone : +1 314 771-5765 Fax : +1 800 325-5052 1.4 Emergency telephone Emergency Phone # : 800-424-9300 CHEMTREC (USA) +1-703- 527-3887 CHEMTREC (International) 24 Hours/day; 7 Days/week SECTION 2: Hazards identification 2.1 Classification of the substance or mixture GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) Flammable liquids (Category 2), H225 Acute toxicity, Oral (Category 2), H300 Acute toxicity, Inhalation (Category 2), H330 Acute toxicity, Dermal (Category 1), H310 Short-term (acute) aquatic hazard (Category 1), H400 Long-term (chronic) aquatic hazard (Category 1), H410 For the full text of the H-Statements mentioned in this Section, see Section 16. 2.2 GHS Label elements, including precautionary statements Pictogram Signal word Danger Aldrich - 212849 Page 1 of 10 The life science business of Merck KGaA, Darmstadt, Germany operates as MilliporeSigma in the US and Canada Hazard statement(s) H225 Highly flammable liquid and vapor. H300 + H310 + H330 Fatal if swallowed, in contact with skin or if inhaled. H410 Very toxic to aquatic life with long lasting effects. -
The Relationship Between the Content of Zinc and Major Elements in Lake
OCHRONA ŚRODOWISKA I ZASOBÓW NATURALNYCH VOL. 25 NO 1(59): 17–23 ENVIRONMENTAL PROTECTION AND NATURAL RESOURCES 2014 DOI 10.2478/oszn-2014-0004 Izabela Bojakowska*, Tomasz Gliwicz*, Jarosław Kucharzyk* The relationship between the content of zinc and major elements in lake sediments in Poland Zależność między stężeniem cynku i pierwiastków głównych w osadach jezior w Polsce * Prof. dr hab. Izabela Bojakowska, dr Tomasz Gliwicz, mgr Jarosław Kucha- rzyk, Polish Geological Institute – National Research Institute, Rakowiecka 4 St., 00-975 Warsaw, Poland, phone: +48 22 45 92 296, e-mail: izabela. [email protected], [email protected], jaroslaw.kucharzyk@ pgi.gov.pl Keywords: lake sediments, zinc, major elements Słowa kluczowe: osady jeziorne, cynk, pierwiastki główne Abstract Streszczenie A total of 409 sediment samples were collected from lake deeps Z głęboczków jezior Pojezierzy: Wielkopolskiego, Pomorskiego of 260 lakes in the Greater Poland, Pomerania and Masuria Lake- i Mazurskiego pobrano 409 próbek osadów. We wszystkich prób- lands. All samples (fraction <0.2 mm) were analysed for the con- kach określono zawartość cynku oraz Ca, Mg, Fe, K, Mn, Na, P, S centration of zinc (Zn), Al, Ca, Mg, Fe, K, Mn, Na, P, S and TOC. i OWO. W osadach zawartość Zn zmieniała się w zakresie od <6 The Zn concentration in the lake sediments varied from <6 to 1006 do 1006 mg/kg, średnie stężenie wynosiło 93 mg/kg, a średnia geo- mg/kg, the average concentration was 93 mg/kg and the geometric metryczna – 74 mg/kg. W większości zbadanych próbek zawartość mean 74 mg/kg. In most of the samples, the Zn concentration was cynku była niższa od 200 mg/kg (za wyjątkiem 19 próbek). -
BMG BRUKER/MERCK – Library Compound Index
BMG BRUKER/MERCK – Library Compound Index ACENAPHTHENEQUINONE ACENAPHTHYLENE ACETALDEHYDE ACETALDEHYDE DIETHYL ACETAL ACETALDEHYDE DIMETHYL ACETAL ACETAMIDE ACETAMIDINIUM CHLORIDE 4-ACETAMIDOACETOPHENONE 4-ACETAMIDOBENZALDEHYDE ACETANILIDE LEAD(IV) ACETATE n-AMYL ACETATE ACETIC ACID ACETIC ANHYDRIDE ACETOACETALDEHYDE 1,1-(DIMETHYL ACETAL) ACETOACETANILIDE (+)-alpha-ACETOBROMOGLUCOSE ACETOHYDRAZIDE ACETONE ACETONE OXIME ACETONITRILE BIS(ACETONITRILE)-PALLADIUM(II) CHLORIDE ACETOPHENONE ACETYL BROMIDE ACETYL CHLORIDE (-)-TRIS-O-ACETYL-D-GALACTAL (-)-TRI-O-ACETYL-D-GLUCAL 2-ACETYL-gamma-BUTYROLACTONE (+)-DI-O-ACETYL-L-RHAMNAL IRON(III) ACETYLACETONATE ZINC(II) ACETYLACETONATE ACETYLACETONE 2-ACETYLBENZOIC ACID ACETYLCHOLINE PERCHLORATE 2-ACETYLCYCLOPENTANONE ACETYLENECARBOXYLIC ACID ACETYLENEDICARBOXYLIC ACID ACETYLENEDICARBOXYLIC ACID MONOPOTASSIUM SALT N-ACETYLGLYCINE ACETYLMETHYLENETRIPHENYLPHOSPHORANE 1-ACETYLNAPHTHALENE 2-ACETYLNAPHTHALENE ACETYLSALICYLOYL CHLORIDE (+)-DL-O-ACETYLTARTARIC ACID ANHYDRIDE 1-ACETYLTHIOUREA ACRIDANE ACRIDINE ACRIDINIUM CHLORIDE ACROLEIN ACRYLAMIDE 2-ACRYLAMIDO-2-METHYLPROPANESULFONIC ACID ACRYLIC ACID ACRYLONITRILE ACRYLOYL CHLORIDE 1 ADAMANTANE 1-ADAMANTANEAMMONIUM CHLORIDE 1-ADAMANTANECARBONITRILE 1-ADAMANTANECARBOXYLIC ACID 1-ADAMANTANOL ADIPAMIDE ADIPIC ACID ADIPONITRILE ADIPOYL DICHLORIDE tert-AMYL ALCOHOL ALLYL 2,3-EPOXYPROPYL ETHER ALLYL ACETATE ALLYL ACETOACETATE ALLYL ALCOHOL ALLYL CYANIDE ALLYL CYANOACETATE ALLYL ISOTHIOCYANATE ALLYL METHACRYLATE ALLYL SULFIDE 1-ALLYL-3,4-METHYLENEDIOXYBENZENE -
Toxicological Profile for Zinc
TOXICOLOGICAL PROFILE FOR ZINC U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service Agency for Toxic Substances and Disease Registry August 2005 ZINC ii DISCLAIMER The use of company or product name(s) is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry. ZINC iii UPDATE STATEMENT A Toxicological Profile for Zinc, Draft for Public Comment was released in September 2003. This edition supersedes any previously released draft or final profile. Toxicological profiles are revised and republished as necessary. For information regarding the update status of previously released profiles, contact ATSDR at: Agency for Toxic Substances and Disease Registry Division of Toxicology/Toxicology Information Branch 1600 Clifton Road NE Mailstop F-32 Atlanta, Georgia 30333 ZINC vi *Legislative Background The toxicological profiles are developed in response to the Superfund Amendments and Reauthorization Act (SARA) of 1986 (Public law 99-499) which amended the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA or Superfund). This public law directed ATSDR to prepare toxicological profiles for hazardous substances most commonly found at facilities on the CERCLA National Priorities List and that pose the most significant potential threat to human health, as determined by ATSDR and the EPA. The availability of the revised priority list of 275 hazardous substances was announced in the Federal Register on November 17, 1997 (62 FR 61332). For prior versions of the list of substances, see Federal Register notices dated April 29, 1996 (61 FR 18744); April 17, 1987 (52 FR 12866); October 20, 1988 (53 FR 41280); October 26, 1989 (54 FR 43619); October 17, 1990 (55 FR 42067); October 17, 1991 (56 FR 52166); October 28, 1992 (57 FR 48801); and February 28, 1994 (59 FR 9486).