Crystal structure of hexa­aqua­nickel(II) bis{2-[(5,6-di­hy­droxy-3-sul­fon­ato­quino­lin-1-ium-7-yl)oxy]acetate} dihydrate

Acta Crystallographica Section E: Crystallographic Communications

Nguyen Thi Ngoc, V.¹  Nguyen Bich, N.¹  Tran Thi, D.¹  Le Thi Hong, H.¹  Van Meervelt, L.² 

[1] Chemistry Department, Hanoi National University of Education, 136 - Xuan Thuy - Cau Giay, Hanoi, Vietnam;Chemistry Department, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven (Heverlee), Belgium

关键词: CRYSTAL STRUCTURE;    QUINOLINE;    HYDROGEN BONDING;    [PI]-[PI] STACKING;    ZWITTERION;   

DOI  :  10.1107/S2056989015015662

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The asymmetric unit of the title compound, [Ni(H2O)6](C11H8NO8S)2·2H2O, features a half-hexa­aqua­nickel(II) complex cation with the NiII ion on an inversion center, one deprotonated 5,6-dihy­droxy-3-sulfoquinolin-7-yloxyacetic acid (QOH) molecule appearing in its zwitterionic form and one lattice water mol­ecule. The sulfonate group is disordered over two positions with occupancy factors of 0.655 (5) and 0.345 (5). The hexa­aqua­nickel(II) cation inter­acts through hydrogen bonding with eight QOH mol­ecules and two water mol­ecules. The six-membered rings of quinoline show π–π stacking [centroid-to-centroid distances of 3.679 (2) Å and 3.714 (2) Å].

【 授权许可】

CC BY