Electronic structure and bond multiplicity in compounds of the type M2Rh2Ac4Cl2

Nefedov, V. I.; Salyn, Ya. V.; Sadovskiy, A.P.

doi:10.1016/0368-2048(79)80026-2

Cited by 4 publications

(2 citation statements)

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“…It should also be noted that these types of bonds of halogen atoms are much weaker due to the trans-effect of multiple metal ± metal bonds. Previously, 78,84,85 an analogous phenomenon has been observed experimentally for dinuclear Re and Rh complexes.…”

Section: Binding Energies Of the Core Electrons Of Halogen Atomssupporting

confidence: 72%

“…This is probably due to the formation of cyclic closed p-systems of the type 3. Replacement of the axial ligands in the {[Tc 2 (A-cO) 4 ]Cl n } (n71)7 (n = 1 or 2) anion by Br 7 does not result in considerable changes in the patterns of the binding energy spectra, which indicates a small contribution of AOs of the axial ligands to the d M7M , p M7M and p M7L MOs, since the axial ligands form mainly ionic bonds with the Tc atoms and only due to the transeffect 78,84,85 do they somewhat weaken the s component of the M7M bonds, which is hardly observed in this spectral region.…”

Section: Binding Energy X-ray Photoelectron Spectramentioning

confidence: 98%

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Physicochemical properties of technetium acido clusters

Kryutchkov¹

1998

Russ. Chem. Rev.

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The review is concerned with the electronic and molec ular structure and physicochemical properties of all types of technetium clusters with acido ligands described to date. As a typical cluster-forming metal, technetium possesses a number of specific, anomalous cluster-forming properties that can be interpreted in terms of greater capability of outer diffuse 5s(5p) AOs to participate in the formation of additional M7M bonds in technetium acido clusters as compared to analogous clusters of other transition d-elements. Theoretical interpretation of the electronic and molecular structure and properties of technetium clusters has been confirmed by experimental data (X-ray analysis, magnetochemistry, and EPR, optical, X-ray photoelectron and X-ray emission spectroscopy). The experimentally observed increased stability of technetium clusters with odd numbers of `metallic' electrons and a decrease in the effective charge on Tc atoms upon formation of the M7M bonds are discussed. Recently found `anomalous' properties of technetium and rhenium compounds with ferrocenium cations (in particular, unusual low-temperature electron emission on X-ray irradiation) are also considered. The bibliography includes 101 references.

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Section: Binding Energies Of the Core Electrons Of Halogen Atomssupporting

confidence: 72%

Section: Binding Energy X-ray Photoelectron Spectramentioning

confidence: 98%