The millimeter-wave spectrum of25MgNC and 26MgNC: bonding in magnesium isocyanides

M. A. Anderson; L. M. Ziurys

doi:10.1016/0009-2614(94)01259-8

The millimeter-wave spectrum of²⁵MgNC and ²⁶MgNC: bonding in magnesium isocyanides

M. A. Anderson
, L. M. Ziurys

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

36 Scopus citations

Abstract

Rotational spectra of the ²⁵Mg and ²⁶Mg isotopomers of MgNC have been recorded in the frequency range 298-386 GHz using millimeter/sub-millimeter direct absorption spectroscopy. The species were created in their natural isotopic ratios in a dc discharge of cyanogen gas and magnesium vapor. Rotational and fine structure parameters were determined for these radicals, as well as magnesium 25 hyperfine constants for ²⁵MgNC. For this isotopomer, b_F ≈ -298(16), indicating a large electron density at the nucleus and an ionic type Mg⁺NC^- structure, as expected for a linear configuration. R₀ bond lengths were also derived, which are in good agreement with theoretical calculations.

Original language	English (US)
Pages (from-to)	164-170
Number of pages	7
Journal	Chemical Physics Letters
Volume	231
Issue number	2-3
DOIs	https://doi.org/10.1016/0009-2614(94)01259-8
State	Published - Dec 23 1994

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(94)01259-8

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title = "The millimeter-wave spectrum of25MgNC and 26MgNC: bonding in magnesium isocyanides",

abstract = "Rotational spectra of the 25Mg and 26Mg isotopomers of MgNC have been recorded in the frequency range 298-386 GHz using millimeter/sub-millimeter direct absorption spectroscopy. The species were created in their natural isotopic ratios in a dc discharge of cyanogen gas and magnesium vapor. Rotational and fine structure parameters were determined for these radicals, as well as magnesium 25 hyperfine constants for 25MgNC. For this isotopomer, bF ≈ -298(16), indicating a large electron density at the nucleus and an ionic type Mg+NC- structure, as expected for a linear configuration. R0 bond lengths were also derived, which are in good agreement with theoretical calculations.",

author = "Anderson, \{M. A.\} and Ziurys, \{L. M.\}",

note = "Funding Information: This work was supported by NSF grant No. AST-92-53682 and NASA grant No. NAGW 2989. The",

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doi = "10.1016/0009-2614(94)01259-8",

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T1 - The millimeter-wave spectrum of25MgNC and 26MgNC

T2 - bonding in magnesium isocyanides

AU - Anderson, M. A.

AU - Ziurys, L. M.

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PY - 1994/12/23

Y1 - 1994/12/23

N2 - Rotational spectra of the 25Mg and 26Mg isotopomers of MgNC have been recorded in the frequency range 298-386 GHz using millimeter/sub-millimeter direct absorption spectroscopy. The species were created in their natural isotopic ratios in a dc discharge of cyanogen gas and magnesium vapor. Rotational and fine structure parameters were determined for these radicals, as well as magnesium 25 hyperfine constants for 25MgNC. For this isotopomer, bF ≈ -298(16), indicating a large electron density at the nucleus and an ionic type Mg+NC- structure, as expected for a linear configuration. R0 bond lengths were also derived, which are in good agreement with theoretical calculations.

AB - Rotational spectra of the 25Mg and 26Mg isotopomers of MgNC have been recorded in the frequency range 298-386 GHz using millimeter/sub-millimeter direct absorption spectroscopy. The species were created in their natural isotopic ratios in a dc discharge of cyanogen gas and magnesium vapor. Rotational and fine structure parameters were determined for these radicals, as well as magnesium 25 hyperfine constants for 25MgNC. For this isotopomer, bF ≈ -298(16), indicating a large electron density at the nucleus and an ionic type Mg+NC- structure, as expected for a linear configuration. R0 bond lengths were also derived, which are in good agreement with theoretical calculations.

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The millimeter-wave spectrum of²⁵MgNC and ²⁶MgNC: bonding in magnesium isocyanides

Abstract

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