Answers to Problems Chapter 2 2-2 VB' B1u ; V13•14, B3u ; V I6.17.IB' B1u (B) Trap Blohl4 at - 20 to - 78°, 2-3 Diagram Very Similar to Fig
Answers to problems Chapter 2 2-2 VB' b1u ; V13•14, b3u ; V I6.17.IB' b1u (b) Trap BlOHl4 at - 20 to - 78°, 2-3 Diagram very similar to Fig. 2-12 BsH9 at -95 to -126°, B2H6 at 2-4 B1H~+ might have such a struc -196° ture, not B1H6 (c) B2H6+Me3N --+ Me3N,BH3 2-5 (a, b) IH, 1111 quartet; 11B, 1331 (in volatile) +!BZH6 quartet 4-8 MezNH,BH3; Me1NB1Hs; (c) IH, 1111 quartet, 1234321 Me2NBH2; (Me1N}zBH; septet; 11 B 1331 quartet of doub B(NMe1)3 lets 4-15 1,2-Tetramethylenediborane (d) IH, as for (c), but intensities Hydrolysis --+ 4 :1, not 6:1; 11B 121 triplet of (HO}zB(CH2)4B(OH}z doublets B = Me3N,BH2(CH2)4BH2' NMe3 Chapter 3 4-16 A = B6HlO B = BsH9 3-1 a, 0; b,+t,-i-; c,f, O,+!, -!; C = B4HlO d,e, 1, -!; f, -i-, +i- 4-17 A = Me1 BH1 BH2 (b) a, -1; b, -!; c, 0, -!; d, B = (EtNBHh _.J. _1. 3' 6 C = trans- (Me2BN :CHMejz (c) -1,0, +! D = cis- (Me1BN :CHMe)z (d) B(l, 3, 6, 9), 0; B(2, 4), -~; B(5, 7, 8, 10), +t Chapter 5 3-3 (201O)B 1H 4 , (1020)B1H;-, 5-3 AHa = 4618kJ/mole (1012)B1HS", (1004)B2Hi, E(AIHB) = 395 kJ/mole (OO30)B2H~ -, (OO22)B2H~ -, 5-4 (a) Me2AIPh1AIMe1 (OO14)B2H~ -, etc. (b) reactants plus 3-4 (1301) and (221O)B4H 6, Me2AIBrClAIMe2 (4004)B4H 11. (1401) and (c)AI(BH4h +Me.B2H6-n (2301)B sH7, and (5013) and (d) AI( °Hh + methane (e,!) (4104)BsH 13 appear possible Me2AIMe(OBu')AIMe1 3-6 (2402) and (3311)B6HlO are 5-7 B, 97; AI, 78; Ga, 34 theoretically possible, as are (3303), (4212), (5121), and Chapter 6 (6030)B 6H 12.
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