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

Stephen G. Kukolich; Shane M. Sickafoose

doi:10.1016/0009-2614(93)89282-M

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

Stephen G. Kukolich, Shane M. Sickafoose

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

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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 C_4v symmetry. With other structural parameters constrained to previously reported values, r₀(MnH) = 1.64(4) Å. The C_axMnC_eq angle derived from the data is approximately 97°C, if MnCO angles are constrained to 180°C.

Original language	English (US)
Pages (from-to)	168-172
Number of pages	5
Journal	Chemical Physics Letters
Volume	215
Issue number	1-3
DOIs	https://doi.org/10.1016/0009-2614(93)89282-M
State	Published - Nov 26 1993

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(93)89282-M

Cite this

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title = "The microwave spectrum and MnH bond length for HMn(CO)5",

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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T1 - The microwave spectrum and MnH bond length for HMn(CO)5

AU - Kukolich, Stephen G.

AU - Sickafoose, Shane M.

PY - 1993/11/26

Y1 - 1993/11/26

N2 - 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.

AB - 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.

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

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

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