Research & Teaching Faculty

THE MICROWAVE ROTATIONAL SPECTRUM OF THE VAN-DER-WAALS COMPLEX KR-N2

TitleTHE MICROWAVE ROTATIONAL SPECTRUM OF THE VAN-DER-WAALS COMPLEX KR-N2
Publication TypeJournal Article
Year of Publication1993
AuthorsJager, W, Xu, YJ, Heineking, N, Gerry, MCL
JournalJournal of Chemical Physics
Volume99
Pagination7510-7520
Date PublishedNov
Type of ArticleArticle
ISBN Number0021-9606
KeywordsAR-HCN, ATOMS, DIPOLE-MOMENT, FIELD, HCN DIMER, J-DEPENDENCE, KR-83, MOLECULES, QUADRUPOLE COUPLING-CONSTANT, SPECTROSCOPY
Abstract

Pure rotational transitions in the vibrational ground state of the van der Waals complex Kr-N2 have been measured using a cavity microwave Fourier transform spectrometer. For the isotopomers Kr-84-N-14(2), Kr-86-N-14(2), Kr-84-N-15(2), Kr-86-N-15(2) Kr-82-N-15(2) and Kr-83-N-15(2) a-type transitions with K(a) = 0 and 1 have been measured, confirming a C2v symmetry of the complex. A value for the N-14 nuclear quadrupole coupling constant in free nitrogen N-14(2) has been estimated from an analysis of the nuclear hyperfine structure in complexes of N-14(2). N-15 spin-rotation hyperfine structure could be observed and analyzed in the 2(1,2)-1(1,1) and 2(1,1)-1(1,0) rotational transitions of Kr-84-N-15(2). Rotational transitions of Kr-83-N-15(2) showed a nuclear hyperfine splitting due to Kr-83 with nuclear spin 9/2 which has been attributed to the weak bonding with N-15(2). For Kr-84-N-14-N-15 and Kr-86-N-14-N-15, only transitions involving energy levels with K(a) = 0 have been found.

URL<Go to ISI>://A1993MH74400024