Poly[di-μ9-citrato-tetra-sodiumzinc].
In the title compound, [Na4Zn(C6H5O7)2] n , the Zn(II) ion lies on an inversion center and is coordinated by six O atoms from two citrate ligands, forming a distorted octa-hedral geometry. There are two crystallographically independent Na(+) cations in the asymmetric unit. One Na(+) cation exhibits a distorted square-pyramidal geometry defined by five O atoms from four citrate ligands. The other Na(+) cation is surrounded by six O atoms from five citrate ligands in a distorted octa-hedral geometry. The Na(+) cations are bridged by citrate carboxyl-ate groups, forming a layer parallel to (100). The layers are further assembled into a three-dimensional network with the [Zn(citrate)2](4-) building units as 'pillars'; O-H⋯O hydrogen bonds also stabilize the structure.
Air Force Service College, Xuzhou 221000, People's Republic of China.
Yu-Hong
YH
Ma
Air Force Service College, Xuzhou 221000, People's Republic of China.
Hong-Wei
HW
Yang
Air Force Service College, Xuzhou 221000, People's Republic of China.
Jing-Tuan
JT
Hao
Logistics College, Beijing 100858, People's Republic of China.
Pi-Zhuang
PZ
Ma
Air Force Service College, Xuzhou 221000, People's Republic of China.
Ting
T
Yao