The microwave spectrum and MnH bond length for HMn(CO)5

Stephen G Kukolich, Shane M. Sickafoose

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The microwave rotational spectrum for the symmetric top, manganese pentacarbonylhydride, was measured in the 5-11 GHz range using a pulsed-beam, Fourier transform microwave spectrometer. For HMn(CO)5 we obtained A = B = 907.9841 (2) MHz and eqQ(MN) = -144.22(2) MHz. For DMn(CO)5, A = B = 902.7682(3) MHz and eqQ(Mn) = -45.24(4) MHz. Only K = 0 and K = 4 transitions were observed, confirming the expected C4v symmetry. With other structural parameters constrained to previously reported values, r0(MnH) = 1.64(4) Å. The CaxMnCeq angle derived from the data is approximately 97°C, if MnCO angles are constrained to 180°C.

Original languageEnglish (US)
Pages (from-to)168-172
Number of pages5
JournalChemical Physics Letters
Volume215
Issue number1-3
DOIs
StatePublished - Nov 26 1993

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microwave spectra
Bond length
Carbon Monoxide
Microwave spectrometers
Microwaves
microwave spectrometers
rotational spectra
Manganese
manganese
Fourier transforms
symmetry

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

The microwave spectrum and MnH bond length for HMn(CO)5. / Kukolich, Stephen G; Sickafoose, Shane M.

In: Chemical Physics Letters, Vol. 215, No. 1-3, 26.11.1993, p. 168-172.

Research output: Contribution to journalArticle

Kukolich, Stephen G ; Sickafoose, Shane M. / The microwave spectrum and MnH bond length for HMn(CO)5. In: Chemical Physics Letters. 1993 ; Vol. 215, No. 1-3. pp. 168-172.
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abstract = "The microwave rotational spectrum for the symmetric top, manganese pentacarbonylhydride, was measured in the 5-11 GHz range using a pulsed-beam, Fourier transform microwave spectrometer. For HMn(CO)5 we obtained A = B = 907.9841 (2) MHz and eqQ(MN) = -144.22(2) MHz. For DMn(CO)5, A = B = 902.7682(3) MHz and eqQ(Mn) = -45.24(4) MHz. Only K = 0 and K = 4 transitions were observed, confirming the expected C4v symmetry. With other structural parameters constrained to previously reported values, r0(MnH) = 1.64(4) {\AA}. The CaxMnCeq angle derived from the data is approximately 97°C, if MnCO angles are constrained to 180°C.",
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