NEW TRIARYLPHOSPHANE CHALCOGENIDES. CRYSTAL AND MOLECULAR STRUCTURE OF [2(Me2NCH2)C6H4)](3)P=E (E = S, Se) AND [2-(Me2NCH2)C6H4)](2)PhP=S

作者：Rotar Adina; Covaci Ancuta; Pop Alexandra; Silvestru Anca^*

来源：Romanian Journal of Chemistry, 2010, 55(11-12): 823-+.

• triarylphosphane chalcogenides
• crystal and molecular structure
• NMR spectroscopy

Triarylphosphane chalcogenides of type RxPh3-xP=E [R = 2-(Me2NCH2)C6H4, E = S, x = 3 (1), 2 (3), E = Se, x = 3 (2), 2 (4), 1 (5)] were prepared by reacting the appropriate triarylphosphane with elemental selenium or sulfur in a 1:1 molar ratio. The solution behaviour of compounds 1 - 5 was investigated by multinuclear NMR spectroscopy (H-1, C-13 and P-31). The molecular structures of derivatives 1 - 3 were determined by single-crystal X-ray diffraction. All three compounds form monomeric units with P=E double bonds. No intramolecular N -> P interactions were observed in these derivatives. The IR spectra confirm the formation of P=E double bonds in all five compounds.

• 出版日期2010-12