title: Dipotassium tetra-aqua-bis-(μ-citrato-κ(4) O:O',O'',O''')nickelate(II) tetra-hydrate.
abstract: The title complex, K2[Ni2(C6H5O7)2(H2O)4]·4H2O, is a dinuclear centrosymmetric anionic octa-hedral complex, involv-ing citrates as tridentate and bridging ligands, and coordinating water mol-ecules. An extensive network of hydrogen bonds connects the complex anions through the two unique uncoordinating water mol-ecules. The K(+) counter cation is surrounded by seven O atoms in the form of an irregular polyhedron and further stabilizes the crystal packing.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangdong 528458, People's Republic of China.
authors.forename: Hua-Gang
authors.initials: HG
authors.lastname: Yao
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangdong 528458, People's Republic of China.
authors.forename: Jia-Na
authors.initials: JN
authors.lastname: Huang
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangdong 528458, People's Republic of China.
authors.forename: Run-Kang
authors.initials: RK
authors.lastname: Deng
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangdong 528458, People's Republic of China.
authors.forename: Zhi-Bang
authors.initials: ZB
authors.lastname: Yao