title: The electric dipole moments in the ground states of gold oxide, AuO, and gold sulfide, AuS.
abstract: The B2Σ-- X2Π3/2(0,0) bands of a cold molecular beam sample of gold monoxide, AuO, and gold monosulfide, AuS, have been recorded at high resolution both field free and in the presence of a static electric field. The observed electric field induced splittings and shifts were analyzed to produce permanent electric dipole moments, μ→el, of 2.94±0.06 D and 2.22±0.05 D for the X2Π3/2(v = 0) states of AuO and AuS, respectively. A molecular orbital correlation diagram is used to rationalize the trend in ground state μ→elvalues for AuX (X = F, Cl, O, and S) molecules. The experimentally determined μ→elare compared to those computed at the coupled-cluster singles and doubles (CCSD) level augmented with a perturbative inclusion of triple excitations (CCSD(T)) level of theory.
authors.affiliation: Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
authors.forename: Ruohan
authors.initials: R
authors.lastname: Zhang
authors.affiliation: School of Physics and Material Science, Anhui University Hefei, 230601, China.
authors.forename: Yuanqin
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
authors.forename: Timothy C
authors.initials: TC
authors.lastname: Steimle
authors.affiliation: Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Lan
authors.identifier: 0000000311659559
authors.initials: L
authors.lastname: Cheng