title: Combination between [B-α-SiW9O34] unit and triangular inorganic Ni6 core under hydrothermal conditions: from monomer to rare dimer with malposed dodeca-nickel centers.
abstract: The hydrothermal reactions of α-K(4)SiW(12)O(40) with NiCl(2)·6H(2)O yielded two unprecedented silicotungstates containing a triangular inorganic Ni(6) core. Furthermore, Na(2)[Ni(6)(μ(3)-OH)(3)(H(2)O)(9)SiW(9)O(34)](2)·17H(2)O (1) presents a rare dimer, in which two SiW(9) units sandwich double Ni(6) cores by W-O-Ni linking instead of conventional Ni-O-Ni.
authors.affiliation: Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.forename: Yu
authors.initials: Y
authors.lastname: Huo
authors.forename: Jingyang
authors.initials: J
authors.lastname: Niu
mesh_terms: D019281:Dimerization; D008958:Models, Molecular; D008968:Molecular Conformation; D009532:Nickel / Q000737:chemistry*; D013696:Temperature; D017973:Tungsten Compounds / Q000737:chemistry*
chemical_list: D017973:Tungsten Compounds; D009532:Nickel; C045951:tungstate