Microwave measurements of cobalt and nitrogen quadrupole coupling in Co(CO) sub 3 NO

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.460377· OSTI ID:6145851

Kukolich, S G; Roehrig, M A; Haubrich, S T; Shea, J A ^[1]

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1. Department of Chemistry, The University of Arizona, Tucson, Arizona 85721 (US)

{ital J}=2{r arrow}3, 3{r arrow}4, 4{r arrow}5, and 5{r arrow}6 transitions in the oblate symmetric top molecule cobalt tricarbonyl nitrosyl were measured using a Flygare--Balle type pulsed beam microwave spectrometer. {ital K}=0 and {ital K}=3 transitions were observed for {ital J}=3{r arrow}4 and 4{r arrow}5. Hyperfine structure due to {sup 59}Co and {sup 14}N nuclear quadrupole coupling interactions was well resolved. The measured quadrupole coupling strengths are {ital eQq}{sub {ital cc}} ({sup 59}Co)=35.14(30) MHz and {ital eQq}{sub {ital cc}} ({sup 14}N)={minus}1.59(10). Measured rotation and distortion constants are {ital B}{sub 0}=1042.1590(4) MHz and {ital D}{sub {ital j}} =0.17(8) kHz. The measured {ital B} value is 4% smaller than the {ital B} value calculated from electron diffraction data. Spin--rotation and a quadrupole distortion term were also obtained for {sup 59}Co.

• OSTI ID: 6145851
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 94:1; ISSN JCPSA; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CARBONYLS
COBALT 59
COBALT COMPOUNDS
COBALT ISOTOPES
COUPLING CONSTANTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MICROWAVE SPECTRA
MOLECULAR STRUCTURE
NITROGEN 14
NITROGEN ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
QUADRUPOLE MOMENTS
ROTATIONAL STATES
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS