Notizen: C4S8 2- and C16S18 4-: Intermediates in the Synthesis of PoIy(Carbon Sulfide)
- 1 December 1997
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 52 (12) , 1549-1552
- https://doi.org/10.1515/znb-1997-1218
Abstract
(PPN)2C16S18 was obtained by the addition of PPN+Cl- to a methanolic extract of Na2C4Sx, derived from the reaction of C6S8O2 and NaOMe. Centrosymmetric C16S18 4- consists of thiophene units unsymmetrically fused to two 1,4-dithiin rings. Solutions of C16S18 4- convert to C8S8 2- with heating. When C4Sx (x ~ 8) is reduced by Na/NH3 followed by extraction and crystallization, one obtains the bicyclic polysulfide C4S8 2-, crystallized as its PPh4 + salt.Keywords
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