SYNTHESIS AND STRUCTURE OF 3,7-DIPHENYL-3H,7H-1,5,2,4,6,8,3,7-DITHIA(1,5-SIV)TETRAZADIARSOCINE AND 3,7-DIMESITYL-3H,7H-1,5,2,4,6,8,3,7-DITHIA(1,5-SIV)TETRAZADIARSOCINE, AS2S2N4C12H10 AND AS2S2N4C18H22

被引:30
作者
ALCOCK, NW
HOLT, EM
KUYPER, J
MAYERLE, JJ
STREET, GB
机构
[1] UNIV WARWICK,DEPT MOLEC SCI,COVENTRY CV4 7AL,WARWICKSHIRE,ENGLAND
[2] UNIV WYOMING,DEPT CHEM,LARAMIE,WY 82071
[3] IBM CORP,RES LAB,SAN JOSE,CA 95193
关键词
D O I
10.1021/ic50198a038
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The crystal data for the title compounds are as follows. As2S2N4C18H22: triclinic, P1, at -100 °C; a = 7.390 (2), b = 8.089 (2), c = 18.235 (5) Å α = 86.63 (2), β = 106.16 (2), γ = 98.89 (2)°; V= 1034.1 (5) Å3; Z = 2; Dc= 1.63 gcm-3; µ(MO Ka) 36.15 cm-1; R = 6.3% for 2764 reflections. As2S2N4C12H10: orthorhombic, Pnma, at -100 °C; a = 21.288 (4), b = 28.581 (6), C = 7.532 (1) Å V = 4582.8 (4) Å3; Z = 12; Dc= 1.84 g cm-3; µ(MO Ka) 48.68 cm-1; R = 5.7% for 2718 reflections. In each material, the AS2S2N4group exists as a boat-shaped ring with arsenic atoms at prow and helm, joined by two -N-S-N chains. The four nitrogen atoms are coplanar. Each arsenic is also bonded to a phenyl or mesityl group. While the ring is conformationally similar to the S4N4cage, cross-ring As-As or S-S interactions may be considered minimal. Attempts to prepare polymers analogous to (SN)x, either by thermal splitting of the title compounds or by reaction of arylarsenic dichloride with sulfur diimides, have been unsuccessful. © 1979, American Chemical Society. All rights reserved.
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页码:2235 / 2239
页数:5
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