The singlet-triplet gap of the halonitrenium ions NHX+, NX 2+ and the halocarbenes CHX, CX2 (X = F, Cl, Br, I)

Alberto Gobbi, Gernot Frenking

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Abstract

Ab initio studies at the MP4/6-311 G(2df)//MP2/6-31 G(D) level of theory using effective core potentials for Br and I predict, that halonitrenium ions Nx2+ and NHX+ (X = F, Cl, Br, I) have a ( 1A1) singlet ground state and a singlet-triplet gap between 57-12 for NX2+ and 8-4 kcal mol-1 (1 cal = 4.184 J) for NHX+; a comparison of experimental and theoretical results of the isoelectronic carbenes shows that the theoretical level is quite reliable.

Original languageEnglish
Pages (from-to)1162-1164
Number of pages3
JournalChemical Communications
Issue number14
DOIs
StatePublished - 1993
Externally publishedYes

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