Fernandes José A, Gomes Ana C, Figueiredo Sónia, Gago Sandra, Lopes André D, Pillinger Martyn, Ribeiro-Claro Paulo J A, Gonçalves Isabel S, Almeida Paz Filipe A
Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 24;66(Pt 8):m1005-6. doi: 10.1107/S1600536810028254.
The title salt, (C(5)H(6)N)(4)[Mo(2)Cl(2)O(5)(SO(4))(2)], comprises four pyridinium cations for each (MoClO(2))(2)(μ-O)(μ-SO(4))(2) anionic unit. The asymmetric unit consists of three aggregates of the empirical formula. The tetra-anionic bimetallic molybdenum(VI) cluster is unprecedented and contains two sulfate and one oxide bridges. This structure constitutes the first example of a non-polymeric compound with terminal oxide, sulfate and halide ligands bonded to the same metal. The hydrogen bonds connecting the pyridinium cations to the molybdenum clusters are diverse, varying from strong and directional interactions to bifurcated bonds with a subsequent loss of directionality.
标题盐（C(5)H(6)N）(4)[Mo(2)Cl(2)O(5)(SO(4))(2)]，每个[(MoClO(2))(2)(μ - O)(μ - SO(4))(2)](4 - )阴离子单元包含四个吡啶鎓阳离子。不对称单元由经验式的三个聚集体组成。四阴离子双金属钼（VI）簇是前所未有的，包含两个硫酸根和一个氧桥。这种结构构成了具有与同一金属键合的末端氧化物、硫酸根和卤化物配体的非聚合化合物的第一个例子。连接吡啶鎓阳离子与钼簇的氢键多种多样，从强的定向相互作用到具有随后方向性丧失的分叉键不等。
