STRUCTURE OF 7,8-PH2-10-ENDO-PPH3HG-7,8-NIDO-C2B9H9 METHYLENE-CHLORIDE SOLVATE

被引：6

作者：

LEWIS, ZG

WELCH, AJ

机构：

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1993年 / 49卷

关键词：

D O I：

10.1107/S0108270192012149

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

7,8-Diphenyl-10-endo-(triphenylphosphino mercury)-7,8-dicarba-nido-undecaborane(9) methylene chloride solvate, C32H34B9HgP.CH2Cl2, M(r) = 832.41, monoclinic, P2(1), a = 10.9534 (15), b = 13.274 (3), c = 11.5283 (17) angstrom, beta = 90.074 (12)degrees, V = 1676.1 angstrom3, Z = 2, D(x) = 1.649 Mg m-3, lambda(Mo Kalpha) = 0.71069 angstrom, mu = 4.82 mm-1, F(000) = 816, T= 185 (1) K, R = 0.0214 for 2656 independent observed reflections. The Hg atom is slipped by 1.1 angstrom away from the C(cage) atoms and the cage-bound phenyl groups are cooperatively twisted about their C(cage)-C(aryl) bonds by an average of 29.1-degrees as the result of Ph3P...Ph intramolecular crowding. The C(7)-C(8) connectivity, 1.589 (9) angstrom, the shortest C(cage)-C(cage) distance yet recorded in a diaryl-carbaborane, is a direct consequence of the twisting of the phenyl groups.

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页码：715 / 718

页数：4

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