Electric dipole moment and hyperfine properties of bromoacetylene in the ground and first excited C--H stretching vibrational states

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.458425· OSTI ID:7243902

Bass, S M; DeLeon, R L; Muenter, J S ^[1]

---

1. Department of Chemistry, University of Rochester, Rochester, New York 14627 (US)

Molecular beam electric resonance spectroscopy, combined with color center laser excitation, has been used to measure the electric dipole moment and Br hyperfine properties of bromoacetylene in its ground and first excited C--H stretching vibrational states. For the HCC{sup 79}Br, {ital v}=0: {mu}=0.229 62(1) D, {ital eQq}=648.113(3) MHz, {ital C}{sub Br}=6.4(3) kHz, and {ital B}=4000.07 MHz. For the HCC{sup 79}Br, {ital v}=1: {mu}=0.248 82(1) D, {ital eQq}=648.160(2) MHz, {ital C}{sub Br}=7.0(3) kHz, and {ital B}=3992.79 MHz. For the HCC{sup 81}Br, {ital v}=0: {mu}=0.229 56(1) D, {ital eQq}=541.430(1) MHz, {ital C}{sub Br}=7.4(1) kHz, and {ital B}=3978.46 MHz. For the HCC{sup 81}Br, {ital v}=1: {mu}=0.248 61(1) D, {ital eQq}=541.464(3) MHz, {ital C}{sub Br}=7.6(4) kHz, and {ital B}=3971.34 MHz. The vibrational band origin for the C--H stretching vibration is 3367.7(2) cm{sup {minus}1}.

• OSTI ID: 7243902
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 92:1; 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
BEAMS
BROMINATED ALIPHATIC HYDROCARBONS
BROMINE 79
BROMINE 81
BROMINE ISOTOPES
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ENERGY LEVELS
EXCITED STATES
HALOGENATED ALIPHATIC HYDROCARBONS
HYPERFINE STRUCTURE
INFRARED SPECTRA
INTERMEDIATE MASS NUCLEI
ISOTOPES
MOLECULAR BEAMS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
STABLE ISOTOPES
VIBRATIONAL STATES