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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >A new coordination mode for the tartrato ligand. Synthesis of vanadium(V) oxo peroxo tartrato complexes and the x-ray crystal structure of K-2[{VO(O-2)(L-tartH(2))}(2)(mu-H2O)].5H(2)O
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A new coordination mode for the tartrato ligand. Synthesis of vanadium(V) oxo peroxo tartrato complexes and the x-ray crystal structure of K-2[{VO(O-2)(L-tartH(2))}(2)(mu-H2O)].5H(2)O

机译:酒石配体的新配位模式。钒(V)过氧羰基酒石配合物的合成和K-2 [{VO(O-2)(L-tartH(2))}(2)(mu-H2O)]。5H( 2)O

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Vanadium(V) oxo peroxo tartrate complexes M-2[{VO(O-2)(L-tartH(2))}(2)(mu-H2O)]. 5H(2)O (M = K+, NH4+; tart(4-) = C4O6H24-) have been prepared from aqueous-ethanolic medium and characterized by elemental analysis and IR spectroscopy. The X-ray crystal structure of K-2[{VO(O-2) (L-tartH(2))}(2)(mu-H2O)]. 5H(2)O, as the first crystal structure of a vanadium(V) tartrate complex has been determined. The dinuclear anion exhibits two pentagonal bipyramidal polyhedra about vanadium atoms which are joined to each other by sharing two oxygen atoms of hydroxyl groups and oxygen atom from water molecule. The tartrate group is bonded to the vanadium atom in a bidentate way via oxygen atoms of neighbouring carboxylic and hydroxyl groups. The coordinated hydroxyl oxygen atom is bonded also to the second vanadium atom, but in a monodentate way. This type of bonding of tartrate group was not observed so far. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 22]
机译:钒(V)过氧过氧酒石酸钒络合物M-2 [{VO(O-2)(L-tartH(2))}(2)(mu-H2O)]。 5H(2)O(M = K +,NH4 +; art(4-)= C4O6H24-)已从乙醇水溶液中制备并通过元素分析和红外光谱进行了表征。 K-2 [{VO(O-2)(L-tartH(2))}(2)(mu-H2O)]的X射线晶体结构。作为酒石酸钒(V)络合物的第一晶体结构已确定为5H(2)O。双核阴离子表现出两个围绕钒原子的五边形双锥体多面体,它们通过共享两个羟基的氧原子和水分子中的氧原子相互连接。酒石酸根基团通过相邻的羧基和羟基的氧原子以二齿方式与钒​​原子键合。配位的羟基氧原子也与第二钒原子键合,但是以单齿方式。到目前为止,未观察到这种酒石酸基团的键合。 (C)1998 Elsevier ScienceLtd。保留所有权利。 [参考:22]

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