Dithiocarbimates from Sulfonamides, Part 2: Preparation and X-Ray Crystal Structures
نویسنده
چکیده
By reaction of K2[S2C N S 02C6H 5] • 2 H 20 and K2[S2C N S O ,Q H 4Cl] ■ 2 H .O , respectively, with N i(CH,COO)2 • 4 H 20 the complex anions [Ni(S2C = N -S Ö 2C hH 5)2]2 ' and [Ni(S2C = N S 0 2C hH4C l) 2]2~ are formed and have been isolated in form of their (PPh4) salts. (PPh4)2[Ni(S2C =N —S 0 2—Ph)2] crystallizes monoclinicly. space group P2,/ö with a = 19.081(4), b = 9.106(1), c = 17.630(4) Ä and ß = 113.42(6)° with Z = 2. (PPh4)2[Ni(S2C =N —S 0 2—C(1H 4—Cl)2] -2 H 20 crystallizes triclinicly, and the non-standard setting C l has been choosen with a = 15.732(3), b = 22.509(4), c = 9.521(1) Ä, a = 96.30(6), ß = 117.57(9), y = 88.93(5)° and Z = 2. Within the complex anions nickel has the site-symmetry 1 and is coordinated by four sulfur atoms with N i-S mean = 2.198 Ä. The Ni(S2C = N -S O )2 units are essentially planar in both systems. This planarity gives rise to conjugation effects involving the S 0 2 group and the jr-system of S2C = N — as well as the lone pair on N.
منابع مشابه
Dithiocarbimates from Sulfonamides, Part 1: Preparation and X-Ray Crystal Structures
Institut für Anorganische Chemie der Universität. Egerlandstraße 1. D-8520 Erlangen Z. Naturforsch. 44b, 24—28 (1989); received June 22/September 27. 1988 Dithiocarbimates. Sulfonamides, X-Ray. Sulfones By reaction of the sulfonamides C6H5 —SO; —NH: and p-C\ — C,,H4—SO: — N H : with CS2 in the presence of bases the corresponding dithiocarbimates have been obtained in form of their potas sium s...
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