1,3-diaryltriazenido complexes of ruthenium(I), (II) and (III), and of osmium(III), rhodium(III) and iridium(III) |
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| Institution: | 2. Departamento de Química Inorgánica, Universidade de Vigo, Campus Universitario, Vigo E-36310, Spain |
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| Abstract: | The synthesis and characterization of the platinum metal—1,3-diaryltriazenido complexes Ru(ArNNNAr)(CO)3]2, Ru(ArNNNAr)2]2, cis-Ru(ArNNNAr)2(CO)2, MX2(ArNNNAr)(PPh3)2 (M = Ru, Os; X = Cl, Br) and M′(ArNNNAr)3 (M′= Ru, Os, Rh and Ir) are reported. Axial ligand substitution in Ru(ArNNNAr)(CO)3]2 and adduct formation by Ru(ArNNNAr)2]2 are described. In contrast to other known Ru(II)/Ru(II) “lantern” molecules, the species Ru(ArNNNAr)2]2 have measured magnetic moments equivalent to ca one unpaired electron per dimer, which are presumably due to population of the spin states σ2π4δ2π*4 and σ2π4δ2π*3σ*1. |
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