Neutral five-co-ordinate gallium(III) and indium(III) complexes derived from sulfur ligands

Abstract

Five-co-ordinated gallium(iir) and indium(ii1) complexes, GaCl[PhC(S)CHC(O)Ph],, GaCI(S,CNR,),

Gallium and indium dithiocarboxylates: Synthesis, spectroscopic characterization and structure of [MeGa(S2Ctol)2]

“…The two shorter Ga-S distances in each molecule are comparable (av. 2.317 Å ) and are well within the single Ga-S bond [14,30]. However, this distance is smaller than the one reported for [[Ga{S 2 CN(CH 2 CH 2 ) 2 O} 3 ] (av.…”

Synthesis and Structural Characterization of a Gallium(III) Bis(selenoureato) Complex

“…Work by Nöth has demonstrated that the sodium salt of the structurally not too dissimilar benzoyl(thiobenzoyl)methane, Na + [PhC(S)CHC(O)Ph] − , reacts with GaCl 3 irrespective of the molar ra- Scheme 1. tio used to afford the galliumchlorido(III) species [GaCl{PhC(S)CHC(O)Ph} 2 ] containing two deprotonated ligands [24]. Their interpretation for this observation and also for the fact that the chlorido ligand in the compound is kinetically inert was based on steric effects.…”

Gallium(III) and indium(III) dithiolate complexes: Versatile precursors for metal sulfides

“…The gallium and indium atom in [MCl(S 2 CNR 2 ) 2 ] lie above (0⋅46 Å for Ga and 0⋅79 Å for In) the mean S 4 plane of a distorted square pyramidal configuration. 49 The crystals of [MeGa(S 2 Ctol) 2 ] have two crystallographically independent molecules. The two asymmetrically chelated dithiocarboxylate ligands differ significantly in each molecule.…”

“…24 Unlike organometallic derivatives, the chloro complexes, [MCl 3-n {S 2 P(OR)} n ] (n = 1 or 2), display molecular ion peaks in their mass spectra. 20,21 The M-S stretching in the IR spectra of a variety of complexes have been assigned in the regions of 310-352 (M = In) 49 and 365-380 cm -1 (M = Ga). 33 The Ga-C and In-C stretching vibrations appear in the regions 530-606 33,35 and 450-521 cm -1 33,37 respectively.…”

“…12,18,[21][22][23]25,30,31,33,38,39,47,49,[52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] The complexes are discrete monomers and in general have distorted geometries owing to the restricted bite of the dithio ligands. The S-M-S angle of the chelating dithio ligands varies between 66⋅6 and 81⋅7°, the Scheme 1.…”