Syntheses and characterization of new dithiophosphinato zinc complexes

Authors : Ertuğrul Gazi SAĞLAM, Nurcan ACAR

Pages : 931-940

Doi:10.18596/jotcsa.427192

View : 17 | Download : 9

Publication Date : 2018-01-01

Article Type : Research Paper

Abstract :Four known dithiophosphinic acids, DTPA, were synthesized and their zinc complexes were prepared as novelties. The complexes have been proven to have the structures [Zninsert ignore into journalissuearticles values(µ-DTPA n ); 2 insert ignore into journalissuearticles values(DTPA n ); 2 ], insert ignore into journalissuearticles values([DTPA n ]= R n insert ignore into journalissuearticles values(R);Pinsert ignore into journalissuearticles values(S);H, R= 4-CH 3 O-C 6 H 4 -; R 1 = iso -amyl-, DTPA 1 ; R 2 = iso- butyl-, DTPA 2 ; R 3 = sec -butyl-, DTPA 3 ; R 4 = iso -propyl-, DTPA 4 );. The DTPAs were prepared by the reaction of the Lawesson reagent, [2,4–bisinsert ignore into journalissuearticles values(4-methoxyphenyl);–1,3,2,4–ditiyodifosfetan–2,4–disülfür] insert ignore into journalissuearticles values(LR);, with the corresponding Grignard compounds. The acids formed are viscous liquids difficult to purify and so they were converted to ammonium salts, [DTPA n ][NH 4 ], which are easy to obtain as pure crystals. The complexes were identified to have dimeric structures on the basis of mass spectroscopic data.
Keywords : Dithiophosphinic Acid, Dithiophosphinate, Phosphinodithioic Acid, Dithiophosphinato Zinc Complex, Lawessons Reagent