从氧化物到新型分子钨化合物：双四面体型簇合物[{W(μ-O)(μ-CCN)}(CN)]和[{W(μ-O)(μ-As)}(CN)]的形成。
From oxide to a new type of molecular tungsten compound: formation of bitetrahedral cluster complexes [{W(μ-O)(μ-CCN)}(CN)] and [{W(μ-O)(μ-As)}(CN)].
机构信息
Nikolaev Institute of Inorganic Chemistry SB RAS, Acad. Lavrentiev ave. 3, 630090 Novosibirsk, Russian Federation.
出版信息
Chem Commun (Camb). 2018 Dec 6;54(98):13837-13840. doi: 10.1039/c8cc07746k.
Tungsten trioxide has been found to be a convenient precursor for the synthesis of metal cluster compounds with new types of cluster cores. The reaction between WO3 and KCN led to the formation of the cluster complex [{W6(μ4-O)2(μ3-CCN)4}(CN)16]10-. Unexpectedly, it includes the fully deprotonated form of acetonitrile, the CCN3- anion, as a μ3-bridging ligand coordinated to the trigonal faces of the bitetrahedral W6 metallocluster. A similar complex [{W6(μ4-O)2(μ3-As)4}(CN)16]10- containing μ3-As3- ligands instead of μ3-CCN3- ones has been synthesized by the reaction between WO3, As and KCN.
三氧化钨已被发现是合成具有新型核簇的金属簇合物的方便前体。WO3 和 KCN 之间的反应导致了簇合物复合物[{W6(μ4-O)2(μ3-CCN)4}(CN)16]10-的形成。出乎意料的是，它包含了乙腈的完全去质子化形式，即 CCN3-阴离子，作为μ3-桥联配体与四面体 W6 金属簇的三角面配位。通过 WO3、As 和 KCN 之间的反应，合成了一个类似的复合物[{W6(μ4-O)2(μ3-As)4}(CN)16]10-，其中含有 μ3-As3-配体而不是 μ3-CCN3-配体。
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