Syntheses and characterization of new dithiophosphinato zinc complexes

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Sağlam E. G., ACAR N.

Journal of the Turkish Chemical Society, Section A: Chemistry, vol.5, no.2, pp.931-940, 2018 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 5 Issue: 2
  • Publication Date: 2018
  • Doi Number: 10.18596/jotcsa.427192
  • Journal Name: Journal of the Turkish Chemical Society, Section A: Chemistry
  • Journal Indexes: Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.931-940
  • Keywords: Dithiophosphinate, Dithiophosphinato Zinc Complex, Dithiophosphinic Acid, Lawesson’s Reagent, Phosphinodithioic Acid
  • Ankara University Affiliated: Yes

Abstract

© 2018, Turkish Chemical Society. All rights reserved.Four known dithiophosphinic acids, DTPA, were synthesized and their zinc complexes were newly prepared. The complexes have been proven to have the structures [Zn(µ-DTPAn)2(DTPAn)2], ([DTPAn]= Rn(R)P(S)H, R= 4-CH3O-C6H4-; R1= iso-amyl-, DTPA1; R2= iso-butyl-, DTPA2; R3= sec-butyl-, DTPA3; R4= iso-propyl-, DTPA4). The DTPAs were prepared by the reaction of the Lawesson reagent, [2,4–bis(4-methoxyphenyl)–1,3,2,4–dithiodiphosphetane–2,4–disulfide] (LR), with the corresponding Grignard compounds. The acids formed are viscous liquids difficult to purify and so they were converted to ammonium salts, [DTPAn][NH4], which are easy to obtain as pure crystals. The complexes were identified to have dimeric structures on the basis of mass spectroscopic data.