Infrared resonance Raman, and excitation profile studies of Os/sub 2/(O/sub 2/CCH/sub 3/)/sub 4/Cl/sub 2/ and Os/sub 2/(O/sub 2/CCD/sub 3/)/sub 4/Cl/sub 2/. The assignment of the osmium-osmium stretching vibration for a complex involving an osmium-osmium multiple bond
Journal Article
·
· J. Am. Chem. Soc.; (United States)
Extensive Raman studies (1525-40 cm/sup /minus/1/) of Os/sub 2/(O/sub 2/CCH/sub 3/)/sub 4/Cl/sub 2/ have led to the identification of the three strong bands, /nu//sub 1/, /nu//sub 2/, and /nu//sub 3/, at 229, 393, and 292 cm/sup /minus/1/ to the key skeletal stretching modes, /nu/(OsOs), /nu/(OsO), and /nu/(OsCl), respectively. Raman spectra of the complex at resonance with the intense electronic band at /lambda//sub max/ = 383 nm lead to the development of a six-membered overtone progression in /nu//sub 1/ as well as combination band progressions in /nu//sub 1/ based upon one quantum of either /nu//sub 2/ or /nu//sub 3/. This indicates that the principal structural change attendant upon excitation to the resonant state is along the OsOs coordinate. Fourier transform infrared spectra (3500-40 cm/sup /minus/1/) have also been obtained. Acetate deuteriation provides conclusive evidence for many of the infrared and Raman band assignments. The study provides the first firm identification of /nu/(OsOs) for a multiply bonded species.
- Research Organization:
- Univ. College London (England)
- OSTI ID:
- 5830719
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 110:18; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:5776064
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OSTI ID:22047188
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Journal Article
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· Inorganic Chemistry; (USA)
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OSTI ID:6835563
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACETATES
CARBOXYLIC ACID SALTS
COMPLEXES
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
LASER SPECTROSCOPY
LIGHT NUCLEI
MEASURING INSTRUMENTS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OSMIUM COMPLEXES
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SPECTRA
SPECTROMETERS
SPECTROSCOPY
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
ACETATES
CARBOXYLIC ACID SALTS
COMPLEXES
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
LASER SPECTROSCOPY
LIGHT NUCLEI
MEASURING INSTRUMENTS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OSMIUM COMPLEXES
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SPECTRA
SPECTROMETERS
SPECTROSCOPY
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES