title: (μ-Oxalato-κO,O:O,O)bis-[bis-(2,2'-bipyridine-κN,N')cobalt(II)] μ(6)-oxido-dodeca-μ(2)-oxido-hexa-oxido-hexa-tungstate(VI).
abstract: The asymmetric unit of the title compound, [Co(2)(C(2)O(4))(C(10)H(8)N(2))(4)][W(6)O(19)], consists of one half of the complex [Co(2)(C(2)O(4))(C(10)H(8)N(2))(4)](2+) cation and one half of the Lindqvist-type [W(6)O(19)](2-) isopolyanion. Both constituents are completed by crystallographic inversion symmetry. In the dimeric cation, the Co(II) atom is surrounded in a distorted octa-hedral coordination by four N atoms from two chelating 2,2'-bipyridine ligands and by two O atoms from the chelating oxalate anion. The Lindqvist-type anion exhibits the characteristic W-O bond-length distribution, with the shortest bonds being the W-O(terminal) bonds and the longest being those to the central O atom.
authors.forename: Congwen
authors.initials: C
authors.lastname: Shi
authors.forename: Liming
authors.initials: L
authors.lastname: Fan
authors.forename: Peihai
authors.initials: P
authors.lastname: Wei
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Xiutang
authors.initials: X
authors.lastname: Zhang