Structure and quadrupole coupling measurements on ClF sub 3

Journal Article · Sun Jul 01 00:00:00 EDT 1990 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.459611· OSTI ID:7101889

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

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

Seventy-nine new microwave transitions for {sup 35}ClF{sub 3} and {sup 37}ClF{sub 3} in the 6--18 GHz range were measured using a Flygare--Balle-type spectrometer. Rotational transition frequencies were used to obtain effective'' structure parameters for the ground vibrational state {ital z}{sub Cl--F} (along {ital C}{sub 2} axis)=1.5985(4) A, {ital r}{sub Cl--F} =1.700 73(5) A and {Theta}{sub F--Cl--F} =87.48(4){degree}. Analysis of hyperfine structure due to chlorine quadrupole coupling and observed transition frequencies yield the following molecular parameters for {sup 35}ClF{sub 3}: {ital A}=13 748.25(1) MHz, {ital B}=4611.719(2) MHz, {ital C}=3448.629(3) MHz, {ital eQq}{sub {ital aa}}=82.03(3) MHz, and {ital eQq}{sub {ital bb}}=65.35(2) MHz. Molecular parameters obtained for {sup 37}ClF{sub 3} are: {ital A}=13 653.54(1) MHz, {ital B}=4611.866(2) MHz, {ital C}=3442.719(4) MHz, {ital eQq}{sub {ital aa}}=64.66(4) MHz, and {ital eQq}{sub {ital bb}}=51.53(3) MHz.

• OSTI ID: 7101889
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 93:1; 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
CHLORINE COMPOUNDS
CHLORINE FLUORIDES
COUPLING CONSTANTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYPERFINE STRUCTURE
MICROWAVE SPECTRA
MOLECULAR STRUCTURE
QUADRUPOLE MOMENTS
ROTATIONAL STATES
SPECTRA