High-Temperature Infrared Emission Spectra of D12C14N and D13C14N

✍ Scribed by E. Möllmann; A.G. Maki; M. Winnewisser; B.P. Winnewisser; W. Quapp

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 367 KB
• Volume: 212
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.2001.8519

✦ Synopsis

The infrared spectra of two isotopomers of deuterium cyanide, D 12 C 14 N and D 13 C 14 N, were measured in emission at temperatures of 1370 K and 1520 K, respectively, in the range from 450 to 850 cm -1 and, for D 12 C 14 N, also from 1800 to 2800 cm -1 . Assignments were made for rovibrational transitions to high bending states, v 2 = 9 for D 13 C 14 N and v 2 = 11 for D 12 C 14 N. To aid and verify the assignments, bands of the lower bending states, up to v 2 = 3, were also measured in absorption at room temperature. A global fit was made of all measurements available to us for each isotopomer. In addition to giving the rovibrational constants for each state measured, the power series expansion constants are also given and compared with those of the other deuterium cyanide isotopomers. The D 12 C 14 N laser transitions are verified as arising from the consequences of the Coriolis interaction between the J = 21 levels of the 02 0 2 and 09 1e 0 states.