萘-1,5-二磺酸二甲基铵胍盐
Dimethyl-ammonium guanidinium naphthalene-1,5-disulfonate.
作者信息
Wei Bin
机构信息
Ordered Matter Science Research Center, Southeast University, Nanjing 211189, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1123. doi: 10.1107/S1600536812011099. Epub 2012 Mar 21.
The asymmetric unit of the title salt, CH(6)N(3) (+)·C(2)H(8)N(+)·C(10)H(6)O(6)S(2) (2-), consists of one dimethyl-ammonium cation, one guanidinium cation, and two half naphthalene-1,5-disulfonate anions, which lie on inversion centers. N-H⋯O hydrogen bonds link the cations and anions into layers parallel to the ab plane. The layers have a sandwich-like structure, with the sulfonate groups and cations forming outer slices and the naphthalene ring systems inside.
标题盐CH(6)N(3) (+)·C(2)H(8)N(+)·C(10)H(6)O(6)S(2) (2-)的不对称单元由一个二甲基铵阳离子、一个胍阳离子和两个位于对称中心的半萘-1,5-二磺酸盐阴离子组成。N-H⋯O氢键将阳离子和阴离子连接成平行于ab平面的层。这些层具有类似三明治的结构，磺酸根基团和阳离子形成外层，萘环体系在内部。
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