Preparation and structure of [Tc₂(SC₆H₄S)₄]·CHCl₃, a technetium–dithiolate dimer of novel trigonal prismatic geometry

Abstract

Reaction of benzene-I ,2-dithiol with NH4Tc04 yields, from chloroform, the dimeric complex [Tc,(bdt),].CHCI, (bdt = benzene-l,2-dithiolate) (1) which has a new co-ordination geometry with a Tc& core consisting of two trigonal prisms joined by a quadrilateral face.

Synthesis and characterization of neutral technetium(III) complexes with mixed S,P-bidentate phosphine–thiolate ligands. Crystal structure of [Tc(SCH2CH2PPh2)2(SCH2CH2PPh2O)]

“…The ligand HL3 reacts in a similar reduction-substitution pathway to equation (1) starting from pertechnetate and following the stoichiometry in equation (3).…”

“…ct2 Fig 3. An ORTEP view of complex 1 rate, is indicative of a non-reversible process; moreover peak B (irreversible at scan rates from 0.050 to 0.600 V s-l) appears during the potential backscan.…”

Complexes of technetium(III) with sterically hindered arenethiolates and their interactions with small .pi.-accepting molecules

“…Tc(tmbt)3(CO)(MeCN) (7). A solution of compound 5 (10.34 mg, 0.015 mmol) in MeCN (20 mL) was allowed to reflux for 3 days.…”

Chapter 8. Ti, Zr, Hf; V, Nb, Ta; Cr, Mo, W; Mn, Tc, Re

“…226 The product Tc2( bdt),.CHCl, has a Tc2S8 core consisting of two trigonal prisms joined by a quadrilateral face defined by four p2-sulphur atoms of two of the ligands. There is a Tc-Tc bond of 2.59 A through the shared face.…”

“…Reaction between benzene-1,2-dithiol and NH,TcO, in chloroform gives rise to a product with a new technetium geometry. 226 The product Tc2( bdt),.CHCl, has a Tc2S8 core consisting of two trigonal prisms joined by a quadrilateral face defined by four p2-sulphur atoms of two of the ligands. There is a Tc-Tc bond of 2.59 A through the shared face.…”