Reaction of [SNS][AsF6] with Hg(CN)2 and PhHgCN: Preparation and crystal structures of [Hg()2][AsF6]2 and [PhS4N3Ph][AsF6]

Autor: Simon E. Lawrence, William Clegg, Jeremy M. Rawson, Ian Lavender, Christine M. Aherne, Arthur J. Banister
Rok vydání: 1996
Předmět:
Zdroj: Polyhedron. 15:1877-1886
ISSN: 0277-5387
DOI: 10.1016/0277-5387(95)00426-2
Popis: Reaction of Hg(CN) 2 with two equivalents of the salt [SNS][AsF 6 ] provided a high yield (92%) route to the first metallo-dithiadiazolylium salt, [Hg( ) 2 ][AsF 6 ] 2 ( I ). Its structure and reactivity are compared with those of the analogous organic derivatives, [R. ][AsF 6 ]; I initiates the polymerization of tetrahydrofuran and undergoes metathesis reactions but reduction leads to decomposition (forming S 4 N 4 ), whilst oxidation with the halogens provides a novel route to the salts [X. ][AsF 6 ] (X = Cl, Br and I). In contrast, reaction of PhHgCN with [SNS][AsF 6 ] yielded the sulfur-nitrogen chain compound, [PhS 4 N 3 Ph][AsF 6 ] ( II ) with a cation consisting of an alternating S/N chain strung between two phenyl groups.
Databáze: OpenAIRE