Preparation of Salts of the 5,5'-(1,4-Phenylene)bis(1,3,2,4-dithiadiazolylium) Dication and of its 1,2- and 1,3-Phenylene Analogues. Preparation and Crystal Structure of the Stacked, Neutral 5,5'-(1,4-Phenylene)bis(1,3,2,4-dithiadiazole)

DOI: 10.1039/DT9910001099

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1099 - 1104 (1991)

Update date:2022-09-26

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Authors:

Banister, Arthur J.

Rawson, Jeremy M.

Clegg, William

Birkby, Sara L.

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Article abstract of DOI:10.1039/DT9910001099

Reactions of o-, m- and p-C6H4(CN)2 with in liquid SO2 produced the AsF6(1-) salts of o-, m- and p-(2+) in high yield.The para-phenylene ASF6(1-) salt was readily converted (>75percent) into other salts (Cl(1-), Br(1-), SbCl6(1-) or S3N3(1-)) by anion metathesis.Reduction of Cl2 with SbPh3 gave the bis(dithiadiazole), p-C6H4(*)2, which crystallises in the triclinic space group P<*>, with a = 5.772(1), b = 6.382(1), c = 7.491(1) Angstroem, α = 79.21(1), β = 82.86(1), γ = 70.25(1) deg, Z = 1; R = 0.077 for 678 observed reflections.The structure shows equidistant molecular stacking of the trans isomer with weak S...S (3.214 Angstroem) and S...N (3.346 Angstroem) intermolecular interactions.

Full text of DOI:10.1039/DT9910001099

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