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The Interpretation of the Terminal ν(CO) Spectra of Some Tetranuclear Carbonyl Clusters
Author(s) -
A. Kettle Sidney F.,
Diana Eliano,
Boccaleri Enrico,
Stanghellini Pier Luigi
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199911)1999:11<1957::aid-ejic1957>3.0.co;2-a
Subject(s) - chemistry , substituent , hydride , halide , cluster (spacecraft) , spectral line , terminal (telecommunication) , tetrahedron , crystallography , interpretation (philosophy) , transition metal , metal , computational chemistry , stereochemistry , inorganic chemistry , organic chemistry , quantum mechanics , telecommunications , physics , computer science , programming language , catalysis
The recently suggested spherical (SHM) and tensor (THM) harmonic models are applied to the interpretation of the terminal ν(CO) spectra of twenty six tetrahedral transition metal clusters containing between four and twelve terminal carbonyl groups. Although the SHM is perhaps the more generally relevant, there are species for which the THM is appropriate as a first approximation. The distinction between the two appears to be associated with a disruption of the band structure of the cluster either by the introduction of heterometal atoms or by the presence of a group – acetate ester, halide or hydride – presumably acting as an electronegative substituent.