Band Spectrum and Structure of the BCl Molecule

摘要: The 1Π−1Σ+ system of the BCl molecule has been photographed in sixth order a 20 ft. grating. previous interpretation vibrational structure by Miescher (5) is slightly modified. new formula for Q heads B11Cl35 isThe fine number bands measured and analysed, leading to following accurate values rotational constants: B′e = 0.7054 cm.−1, α′e = 0.00820 cm.−1, B″e = 0.6838 cm.−1, α″e = 0.00646 cm.−1. internuclear distance ground state r″e = 1.716.10−8 cm. molecular constants are compared with those iso-electronic molecules CS, PN, SiO as well BBr, BCls, BBr3.