Solid-state structures of group 1 and group 2 metal 1,5-naphthalenedisulfonates: systematic investigation of lamellar three-dimensional networks constructed by metal arenedisulfonate

被引:76
作者
Cai, JW [1 ]
Chen, CH
Liao, CZ
Feng, XL
Chen, XM
机构
[1] Zhongshan Univ, Instrumentat Anal & Res Ctr, Guangzhou 510275, Peoples R China
[2] Zhongshan Univ, Dept Chem, Guangzhou 510275, Peoples R China
来源
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 2001年 / 57卷
关键词
D O I
10.1107/S010876810100862X
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Seven Group 1 and Group 2 1,5-naphthalenedisulfonates (1,5-nds) have been synthesized and structurally characterized by single-crystal X-ray diffraction, IR spectroscopy and thermal gravimetric analysis. For Group I metal complexes, with M = Li+ (1), Na+ (2) and K+ (3). all crystallize in the same space group (P2(1)/c) with the same composition, [M-2(1,5-nds)(H2O)(2)]. They adopt similar three-dimensional packing arrangements with the metal-sulfonate inorganic layers pillared by naphthalene rings. However, the coordination behavior of three metal cations toward the SO 3 group and water molecule are different, resulting in different architectures for the inorganic portion. For Group 2 complexes with M = Mg2+ (4), Ca2+ (5), Sr2+ (6) and Ba2+ (7), Mg2+ shows no direct coordination by the SO3- group while Ca2+ is coordinated by four SO3- groups and a two-dimensional network is formed. Complexes (6) and (7) are isostructural, adopting the same three-dimensional, inorganic-organic pillared framework as seen for (1)-(3). The coordination behavior of the metal cations in these structures neatly illustrates the increase in coordination strength with decreasing charge/radius ratio for Group 1 and Group 2 metal cations with large organic anions.
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页码:520 / 530
页数:11
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