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Infrared Photoacoustic Spectra of Gaseous Pentacarbonyl(methyl)manganese(I) and Pentacarbonyl(methyl)rhenium(I)

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Gas-phase IR photoacoustic (PA) spectra have been obtained for the volatile, solid pentacarbonyl(methyl)metal(I) complexes, CH3Mn(CO)5 and CH3Re(CO)5. The gaseous samples were apparently produced directly in the PA sample cup as the result of local surface heating effects. Vibrational assignments are given for the gas-phase spectra, especially for the binary v(CO) overtone and combinations which absorb in the near-IR region at ~4000 cm−1. The data provide further support for near-IR/PA spectroscopy being a useful technique for the rapid, non-destructive identification of small amounts of organometallic carbonyl complexes.

Keywords: Infrared; Manganese; Organometallic compounds; Photoacoustic; Rhenium; Spectroscopy

Document Type: Research Article


Affiliations: Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Quebec H3A 2K6, Canada

Publication date: November 1, 1992

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