Use of (NSCl)₃ as a Chain-Building Reagent, I: Reaction of ArS₃N₂Ar with (NSCl)₃ in the Presence of AgAsF₆ to Form the Chain-Lengthened Product, [ArS₄N₃Ar] [AsF₆]

Article type: Research Article

Authors: Howard, Judith A.K. | Lavender, Ian | Rawson, Jeremy M. | Swain, Elizabeth A.

Affiliations: Department of Chemistry, The University of Durham, South Road, Durham DH1 3LE. U.K.

Note: [] Corresponding author.

Abstract: Reaction of ArS3N2Ar [Ar = Ph, p-O2N.C6H4− ], 1, with (NSCl)3 led to the formation of the chain-lengthened products [ArS4N3Ar] C1, which were converted to the corresponding hexafluorarsenate (V) salts [ArS4N3Ar][AsF6], 2, by metathesis with AgAsF6. The crystal structure of the para-nitrophenyl derivative, 2a, is reported and is monoclinic, space group P21/c; a = 6.1490(12), b = 17.723(4), c = 18.967(4)Å, β = 87.99(3)° with Dc= 1.94 gcm−3, Z = 4 and R1 (2899 unique data) = 0.11. When Ar = o-O2N·C6H4−, the chain-lengthened product could only be achieved in the presence of both (NSCl)3 and AgAsF6. A mechanism is postulated.

DOI: 10.1080/13583149612331338607

Journal: Main Group Chemistry, vol. 1, no. 3, pp. 317-324, 1996