Molecular structures of edge-sharing square-planar dinuclear complexes with unsaturated bridges |
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Authors: | Aullón G Alvarez S |
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Institution: | Departament de Química Inorgànica and Centre de Recerca en Química Teòrica (CeRQT), Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain. gabriel.aullon@qi.ub.es |
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Abstract: | The dinuclear complexes of transition metal ions of type M(2)(mu,eta(1)-XY)(2)L(4)], where XY is an unsaturated ligand that can act as a four-electron or a two-electron donor through the X atom, appear in two molecular conformations depending on whether the coordination planes around the two metal atoms are coplanar or bent. In both structures the geometry of the X atom is planar, corresponding to an sp(2) hybridization. An ab initio theoretical study on 43 representative complexes, complemented with a structural database analysis, provides a rationale for the experimentally observed structures. |
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