Electronic Structure of BC1 Determined by ab Initio Calculations and Resonance-Enhanced Multiphoton Ionization Spectroscopy
Karl K. Irikura, Russell D. Johnson III, Jeffrey W. Hudgens
The mass-resolved, one-color, 2 + 1 resonance-enhanced multiphoton ionization spectrum of transient boron monochloride (BC1) between 348 nm and 369 nm is reported. Vibrational and rotational bands of the ^10^B^35^C1, ^11^B^35^C1, ^10^B^37^C1, and ^11^B^37^C1 isotopomers and two previously unreported electronic states are assigned. Rotational analysis identifies the F ^1Sigma+^ (3s^sigma^) state (^nu^^00^ = 55994 10 cm^-1^ for ^11^B^35^C1). EE-EOM-CCSD ab initio calculations for BF and BC1 support the F-state assignment and suggest a tentative assignment of b ^3Sigma+^(2p^sigma^)(^nu^^00^ = 56864 10 cm^-1^ for ^11^B^35^C1). Uncertainties indicate the confidence of two standard deviations.
, Johnson, R.
and Hudgens, J.
Electronic Structure of BC1 Determined by ab Initio Calculations and Resonance-Enhanced Multiphoton Ionization Spectroscopy, Journal of Physical Chemistry A, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=831578
(Accessed December 2, 2023)