title: Infrared spectrum of matrix isolated selenoformaldehyde, CH2Se, and CD2Se.
abstract: Thermolysis of highly diluted (CH2Se)3 or (CD2Se)3 in a flow of argon with subsequent quenching of the products in an matrix at 15 K yields monomeric CH2Se and CD2Se, respectively. Six fundamental vibrations upsilon1 = 2972.5, upsilon2 = 1413.3, upsilon3 = 854.2, upsilon4 = 916.4, upsilon 5 = 3052.9, and upsilon 6 = 913.2 cm(-1) and two combination bands have been observed for CH2Se as well as three fundamentals of CD2Se. The vibrational wavenumbers are compared with those of CH2O and CH2S. Matrix isolated selenoformaldehyde decomposes slowly by UV photolysis to yield the CSe molecule.
authors.affiliation: FBC, Anorganische Chemie, Universität Wuppertal, Gaussstrasse 20, D-42119 Wuppertal, Germany.
authors.forename: Helmut
authors.initials: H
authors.lastname: Beckers
authors.forename: Yong Seol
authors.initials: YS
authors.lastname: Kim
authors.forename: Helge
authors.initials: H
authors.lastname: Willner