Hydrogen-bonding patterns in bis(trimethoprim) dipicolinate pentahydrate

被引：3
|
作者：
Hemamalini, M
Muthiah, PT [1 ]
Bocelli, G
Cantoni, A
机构：
[1] Bharathidasan Univ, Sch Chem, Tiruchirappalli 620024, Tamil Nadu, India
[2] CNR, IMEM, I-43010 Parma, Italy
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2005年 / 61卷
关键词：
D O I：
10.1107/S1600536805020167
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
In the title compound, 2C(14)H(19)N(4)O(3)(+)center dot C7H3NO42-center dot 5H(2)O, the asymmetric unit contains two trimethoprim cations ( A and B), a dipicolinate anion and five water molecules. One of the picolinate carboxylate groups interacts with cation A via a pair of N-(HO)-O-... hydrogen bonds, forming a ring motif R-2(2)(8). A loop of O-(HO)-O-... hydrogen bonds is formed between four water molecules and the two carboxylate groups to form a supramolecular chain along the a axis. Molecules A and B constitute a base pair via N-(HN)-N-... hydrogen bonds, and these base pairs are cross- linked by N-(HO)-O-... and C-(HO)-O-... hydrogen bonds.
引用
收藏
页码：O2368 / O2371
页数：4
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