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Bond lengths transition metal dimers

NHt MojClg-NUtCFHjO (35) reveal metal-metal bond lengths that are essentially equal [2.148(2) and 2.150(5) A, respectively], while [Li(Et20)]2-Re2(CH3)8 (80) and [(C4H,)4N]2Re2Cl8 (77) differ by almost 0.05 A [2.178(1) and 2.224(1) A, respectively]. The much larger shift observed for the 5 - 5 transition in the rhenium dimers is certainly a reflection of this increased metal-metal overlap. [Pg.262]

A systematic study of the first ionization potentials of Zn clusters as a function of cluster size with up to 43 atoms reveals that at least 20 transition metals are needed to approach surface (bulk) electronic structure properties. In addition, for the first time LSDF theory predicts a stable Zn dimer with a realistic bond length and binding energy. [Pg.242]

The dimer is assumed to have a bridge-bond structure of 02 symmetry similar to that suggested by Thompson and Carlson (3 ) for the dimers of several transition metal dichlorides. The two outer Mg-F bond lengths are assumed to be the same as that for... [Pg.1136]

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See also in sourсe #XX -- [ Pg.539 ]



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