Testing the mass-scaling relations in the a3Π state of 12C18O and 13C16O

Abstract

a b s t r a c tElectronic spectra of the a .

Perturbations in the A1Π,v= 0 state of12C18O investigated via complementary spectroscopic techniques

“…16 O main isotopologue [24][25][26][27], and in the 13 state and determine whether it shows anomalous behaviour in common with observations of the a 3 state [31,32]. The new spectroscopic measurements of A 1 (v = 0) state presented here are necessary to obtain the precision required to probe this effect.…”

Towards detection of molecular parity violation by microwave spectroscopy of CpRe(CH$_{3}$)(CO)(NO)

“…[49,50] Alternative approaches to perform microwave spectroscopy with perspectively even higher resolution are Ramsey type arrangements using the method of separated oscillatory fields. [51] We note in passing that we also attempted to predict parity violating wavenumber splittings in the CO and NO stretching fundamental using our recently described perturbative approach that uses finite differences of analytic PV potential gradients together with cubic parity conserving potentials to take multi-mode effects into account [23]. Although again relative PV splittings on the order of 10 −14 are obtained, which seem to be very reasonable estimates, the values change sign when multi-mode effects are accounted for.…”

Division B Commission 14 Working Group: Molecular Data

“…A time-dependent quantum mechanical study (Majumder et al 2012) yielded oscillator strengths; the slight differences with experimental results likely arise from perturbations in the A state. Moreover, accurate line positions were measured for transitions that are sensitive to the proton-to-electron mass ratio (de Nijs et al 2011;Salumbides et al 2012;Niu et al 2015), andde Nijs et al (2013) tested mass-scaling relations among isotopologues for the a 3 Π state.…”