Improved synthesis of HN(SPPh2)(SePPh2) and some coordination chemistry of [N(SPPh2)(SePPh2)]-

Perumal Sekar, James A. Ibers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The compound HN(SPPh2)(SePPh2) (1) has been synthesized in good yield from the reaction of Ph2P(S)NH2 with Ph2P(Se)Cl in the presence of NaH in THF. With the corresponding metal salts the anion [N(SPPh2)(SePPh2]-, generated in situ from compound 1 in the presence of KOtBu, readily forms a series of stable bis-chelate complexes [M{N(SPPh2)(SePPh2)}2] (M = Co, 2; Zn, 3; Sn, 4) as well as the tris-chelate complex [Bi{N(SPPh2)(SePPh2)}3] (5). These compounds have been characterized by single-crystal X-ray diffraction and spectroscopic techniques. Compound 1 is isostructural with HN(SPPh2)2 and HN(SePPh2)2 and shows S/Se disorder as do compounds 2-5 where the metal center is coordinated by two or three similar [N(SPPh2)(SePPh2)]- anions. NMR data (δ ppm): 1 - 31P{1H}: 56.9, 52.5 (1JP-Se = 790 Hz); 77Se{1H}: - 160.2 (d, 1JSe-P = 790 Hz; 2JP-P = 4.6 Hz). 3 - 31P{1H}: 41.6, 28.2 (1JP-Se = 525 Hz); 77Se{1H}: -113.1 (d, 1JSe-P = 524 Hz). 4 - 31P{1H}: 41.7, 28.4 (1JP-Se = 531 Hz); 77Se{1H}: 14.6 (d, 1JSe-P = 521 Hz). 5 - 31P{1H}: 38.3, 24.4 (1JP-Se = 555 Hz); 77Se{1H}: 27.0 (d, 1JSe-P = 559 Hz).

Original languageEnglish (US)
Pages (from-to)117-122
Number of pages6
JournalInorganica Chimica Acta
Volume319
Issue number1-2
DOIs
StatePublished - Jul 16 2001

Keywords

  • Chelate ligand complexes
  • Crystal structures
  • Selenium complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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