Molecular quadrupole moment and magnetic anisotropy of carbon diselenide

Abstract

Measurements of the infinite-dilution molar Kerr constant, field-gradient birefringence constant and Cotton-Mouton constant of carbon diselenide as a solute in carbon tetrachloride at 298 K are reported. From an analysis of the observations, the molecular quadrupole moment, Θ, and the magnetic anisotropy, Δ_X, emerge as (+15.4 ± 2.7) × 10^-40 Cm² and (-19.6 ± 2.6) × 10^-5 J T^-2 mol^-1, respectively. Trends in these and related electric and magnetic properties are considered for the sequence of six linear triatomic molecules of formula XCY (X,Y = O,S,Se).