title: Trifluoromethyl Hypobromite, CF(3)OBr.
abstract: The synthesis and isolation of the hypobromite CF(3)OBr is reported. CF(3)OBr is formed besides Me(4)N(+)BrF(2)(-) by the reaction of CF(3)OCl and Me(4)N(+)Br(3)(-) via an addition-elimination mechanism. The initially formed solid, [2CF(3)OBr.Me(4)N(+)BrF(2)(-)], was characterized by (13)C and (19)F NMR, Raman, IR, and mass spectra. The hypobromite was separated from the solid by high-vacuum condensation onto a cold surface and characterized by matrix isolation multichannel Raman spectroscopy. An ab initio calculation was performed, and a force field and the torsional barrier of CF(3)OBr were calculated. The calculation predicts an eclipsed conformation with a rotional barrier of 3.4 kcal/mol. The photolytic decomposition of CF(3)OBr in the solid state and in an argon matrix was investigated.
authors.affiliation: Physikalische Chemie, Fachbereich Chemie, Universität Dortmund, 44221 Dortmund, Germany.
authors.forename: Rolf
authors.initials: R
authors.lastname: Minkwitz
authors.forename: Raimund
authors.initials: R
authors.lastname: Bröchler
authors.forename: Andreas
authors.initials: A
authors.lastname: Kornath
authors.forename: Ralf
authors.initials: R
authors.lastname: Ludwig
authors.forename: Frank
authors.initials: F
authors.lastname: Rittner