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31P CP-MAS NMR, Vibrational, and X-Ray Characterization of the Adducts of Triphenylphosphine Sulfide with ICl and IBr

✍ Scribed by Massimiliano Arca; Francesco A. Devillanova; Alessandra Garau; Francesco Isaia; Vito Lippolis; Gaetano Verani; Francesco Demartin

Publisher
John Wiley and Sons
Year
1998
Tongue
German
Weight
97 KB
Volume
624
Category
Article
ISSN
0372-7874

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✦ Synopsis

The reactions between triphenylphosphine sulfide (Ph 3 PS) and ICl in CCl 4 and IBr in CH 2 Cl 2 in 1 : 1 molar ratio give the solid adducts Ph 3 PS ´ICl (I) and Ph 3 PS ´IBr (II) whose structures have been solved by X-ray diffraction. Compounds I and II consist of discrete molecule units and feature the S±I±Cl or S±I±Br linear group. The S±I bond distances in I, II (2.641(1), 2.665(1) A Ê respectively) and in compound 2 Ph 3 PS ´3 I 2 (III) (2.729(2) A Ê ) are correlable to the net increase in the I±X (X = Cl, Br, I) bond distance. The structural features of I, II and III are in accordance with 31 P CP±MAS NMR, FT-Raman and FT-IR spectral data, and elucidate the nature of the donor (Ph 3 PS)-acceptor (ICl, IBr, I 2 ) interaction.

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