On the nature of the polymeric organotin(IV) chromates(VI), [(Me3Sn)2CrO4] and [(Me3Sn)3CrO4(OH).: An extension of non-consolidated earlier findings

被引:4
|
作者
Poll, EM [1 ]
Rehbein, M [1 ]
Epple, M [1 ]
Fischer, RD [1 ]
机构
[1] Univ Hamburg, Inst Anorgan & Angew Chem, D-20146 Hamburg, Germany
关键词
D O I
10.1080/1061027031000115985
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The powder X-ray diffractogram of the compound [(Me3Sn)(2)CrO4] (1) is found to be practically superimposable with that of its structurally well-understood molybdenum homologue (3). In contrast to the layered (2)(infinity)[Cr(mu- topology of 1, as expressed by the formula 2 OSn(Me-3)O}(2)], the structural motif of its formal derivative [(Me3Sn)(3)CrO4(OH)] (2) involves a distorted- diamondoid pattern in accord with the formula (3)(infinity)[Cr{mu OSn(Me-3)O}{mu-OSn(Me-3)O(H)Sn(Me-3)O}]. In the lattice of 2, actually two equivalent, mutually interpenetrating frameworks are held together by inter-framework O-H...O hydrogen bonds. While 1 appears to be surprisingly reluctant to incorporate interlayer guest cations via facile oxidation/reduction reactions, its thermal analysis reflects an appreciably high energy content which even exceeds that of the 1:1 addition product of 1 and Me3SnOH, 2.
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页码:409 / 416
页数:8
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