Syntheses and Structures of Bis(azole)difluorosulfuranes.
Inorg Chem
; 38(21): 4789-4794, 1999 Oct 18.
Article
em En
| MEDLINE
| ID: mdl-11671207
ABSTRACT
Bis(imidazole)sulfur difluoride (4), bis(pyrazole)sulfur difluoride (6), and bis(1,2,4-triazole)sulfur difluoride (8) are formed in the reactions of N-(trimethylsilyl)imidazole, N-(trimethylsilyl)pyrazole, and 1-(trimethylsilyl)-1,2,4-triazole with SF(4), in high yield. The ring systems in these three molecules occupy equatorial positions in the pseudo-trigonal-bipyramidal coordination sphere of the central sulfur atoms. The angles between the planes of the ring substituents and the FSF axis for 4 and 6 are in the range 23.6-35.3 degrees, and in 8 the triazole rings are almost parallel (deviation 1.7 degrees ). The interaction between the heterocyclic substituents and the sulfur centers and their influence on the axial and equatorial bonds is discussed.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Inorg Chem
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Alemanha