| Téma: |
QD Chemistry / kémia
QD03 Inorganic chemistry / szervetlen kémia
QD04 Organic chemistry / szerves kémia
TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika
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| Tartalmi leírás: |
High- and low-oxidation state CpML3-type (M = Mn, Re L = O. CO)
cyclopentadienyl complexes have been investigated by vibrational
spectroscopy (FTIR, FT-FIR, FT-Raman) and normal coordinate
calculations. The vibrational spectra of CpMn(CO)(3), CpRe(CO)(3)
complexes were revised and reinterpreted. For the oxo-complexes and
Cp*-carbonyl compounds, Cp*Mn(CO), and Cp*Rc(CO)3, a complete spectral
assignment is proposed. The results of the normal coordinate analysis
are in good agreement with the spectral evidence. The vibrational
spectroscopic findings help to explain earlier observations. e,g, the
significantly lower stability of CpReO, in comparison to Cp*ReO3,
Characteristic force constants have been determined for Cp and Cp*
ligands. A method is described for estimating an approximate force
constant for the metal cyclopentadienyl (Cp) ligand bond stretch in
half sandwich type of complexes, based on the use of an effective
'spectroscopic' mass of the Cp-ligand. (C) 2002 Elsevier Science B.V.
All rights reserved.
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| Azonosító: |
Bencze, É. and Mink, János and Németh, Csaba (2002) Vibrational spectroscopic and force field studies of (eta(5)-Cp)ML3-type complexes (M = Mn, Re; L = CO, O). JOURNAL OF ORGANOMETALLIC CHEMISTRY, 642 (1-2). pp. 246-258. ISSN 0022-328X
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