Tetra-cobalt-substiituted Dimeric Tungstoantimonate: Na_(10)Co_4(H_2O)_(10)(B-β-SbW_9O_(33))_2·36H_2O

摘要

A new tetra-cobalt-substiituted dimeric tungstoantimonate Na_(10)[Co_4(H_2O)_(10)(B-β-SbW_9O_(33))2]·36H_2O 1 was synthesized in a weakly alkaline solution. The compound was characterized by elemental analysis and IR spectroscopy. A single-crystal X-ray analysis was carried out on the crystal 1 which crystallizes in monoclinic system, space group P 21/n, with a = 12.529 A, b = 12.778 A, c = 29.434 A, α = 90.000°, β = 101.158°, γ = 90.000° and Z = 2. Polyanion 1 consists of two B-β-SbW_9 units which are linked by four cobalt ions leading to a Keggin-type tetra-cobalt-substiituted dimeric structure.