The vibration-rotation emission spectra of gaseous CdH2 and CdD2

S S Yu, A Shayesteh, P F Bernath

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Abstract

The vibration-rotation emission spectra of CdH2 and CdD2 molecules have been recorded at high resolution using a Fourier-transform spectrometer. The molecules were generated in a furnace-discharge emission source by reaction of cadmium vapor with molecular hydrogen or deuterium. The fundamental bands for the antisymmetric stretching mode (nu(3)) of CdH2 and CdD2 were detected at about 1771.5 and 1278.3 cm(-1), respectively. In addition, the 002(Sigma(g)(+)) -001 (Sigma(u)(+)) and 011(Pi(g))-010(Pi(u)) hot bands were observed for CdH2. Spectroscopic constants were determined for each of the 12 observed isotopologs: (CdH2)-Cd-110, (CdH2)-Cd-111, (CdH2)-Cd-112, (CdH2)-Cd-113, (CdH2)-Cd-114, (CdH2)-Cd-116, (CdD2)-Cd-110, (CdD2)-Cd-111. (CdD2)-Cd-112, (CdD2)-Cd-113, (CdD2)-Cd-114, and (CdD2)-Cd-116. The average Cd-H and Cd-D bond distances (r(0)) were determined to be 1.683028(10) and 1.679161(16) angstrom. respectively. (c) 2005 American Institute of Physics.

Original languageEnglish
Pages (from-to)-
Number of pages6
JournalJournal of Chemical Physics
Volume122
Issue number19
DOIs
Publication statusPublished - 15 May 2005

Keywords

  • AB-INITIO
  • INFRARED-SPECTRA
  • HALF-COLLISION
  • METAL ATOMS
  • ZN
  • HG
  • MATRIX
  • GENERATION
  • COMPLEXES
  • SURFACES

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