A NEW SQUARE NIOBIUM CLUSTER {Nb4(Ој4-O)I8}2+. CRYSTAL STRUCTURE OF A [Nb4OI8][Mo6I14]2в€ћ POLYMER
S. B. Artemkina, N. G. Naumov, A. V. Virovets, S. G. Kozlova, V. E. Fedorov
Keywords: niobium, molybdenum, metal cluster, synthesis, crystal structure, electronic structure
Pages: 396-401
Abstract
A crystal structure of a new layered [Nb4OI8][Mo6I14]2∞ polymer containing a previously unknown niobium cluster {Nb4(μ4-O)I8}2+ with a μ4 oxygen atom is determined. The compound crystallizes in the triclinic space group with unit cell parameters a = 10.1842(6) Å, b = 10.1880(6) Å, c = 11.5700(6) Å, α = 78.058(2)°, β = 77.944(2)°, γ = 80.738(2)°, V = 1139.85(11) Å3, Z = 1, Rf = 0.0414. The electronic structure of the [{Nb4(μ4-O)I8}I4]2- cluster complex is calculated.
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