Diaqua(5-carboxybenzene-1,3-dicarboxylato-百O1)[8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylato-百2O5,O6]zinc monohydrate

作者：Zhong Li Ye; Guang Hua Xin; Fu Tian Zhang; Dong Rong Xiao

来源：Acta Crystallographica Section E-Structure Reports Online, 2013, 69(2): m127-m127.

DOI：10.1107/s1600536813002122

In the title compound, [Zn(C14H17N5O3)(C9H4O6)(H2O)2]﹞H2O, the complex molecule exists in a zwitterionic form. The ZnII ion exhibits a distorted tetragonal-pyramidal geometry, being coordinated by two O atoms from the zwitterionic 8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate (L) ligand, one O atom from the 5-carboxybenzene-1,3-dicarboxylate dianion, [Hbtc]2 , and two O atoms from two aqua ligands. In the crystal, N〞H...O and O〞H...O hydrogen bonds link the components into a three-dimensional structure. The crystal packing exhibits 羽每羽 interactions between the aromatic rings, with centroid每centroid distances in the range 3.466 (3)每3.667 (3) .