Strukturen der Dimethylerdmetallphenylchalkogenolate [(Me₂MEPh)_n] mit M = Ga, In, Tl und E = S, Se, Te

Abstract

The reaction of main group III trimethyls, Me 3 M, with phenylchalcogenols HEPh leads to dimethyl earthmetal phenylchalcogenolates [(Me 2 MEPh) n ] with M = Ga and E = S (1), Se (2), Te (3), M = In and E = S (4), Se (5), Te (6) and M = Tl and E = S (7), Se (8), Te (9). Alternatively, reaction between Me 3 M and Me 3 SiEPh with elimination of SiMe 4 is possible for E = Se, Te if a polar solvent is applied, in order to stabilize the initial adduct [Me 3 M-E(Ph)SiMe 3 ].Additionally, for M = Tl and E = S the dimeric adduct [{Me 2 TlSPh(TlMe 3 )} 2 ] (10) was isolated and structurally characterized. Single crystals and microcrystalline samples of compounds 1 to 9 were examined by X-ray crystallography and polymeric as well as

Trialkylphosphine-Stabilized Copper(I) Gallium(III) Phenylchalcogenolate Complexes: Crystal Structures and Generation of Ternary Semiconductors by Thermolysis

“…From trialkylphosphine-stabilized copper phenylchalcogenolate complexes [(R 3 P) m (CuEPh) n ] (R = Me, Et, i Pr, t Bu; E = S, Se, Te) and dimethylgallium phenylchalcogenolates [(Me 2 GaEPh) n ] the copper dimethylgallium phenylchalcogenolate complexes [(R 3 P) m Cu n Me 2 Ga(EPh) n +1 ] ( 1 , 2 , 6 – 8 ) can be obtained in high yield by simply mixing the starting compounds in THF or toluene solution and subsequent crystallization of the products. The nearly quantitative yields indicate that the ternary complexes are more stable compared to the respective binary compounds.…”

Te–Te and Te–C bond cleavage reactions using a monovalent gallanediyl

“…31 The same holds for the Ga-Te bonds in four structurally characterized Ga 4 Te 4 heterocubanes, which range from 2.67 to 2.72 Å, [32][33][34][35] as well as in dimeric compounds of the general type [R 2 Ga-μ-TeR] 2 , for which Ga-Te bond lengths in the range from 2.67 to 2.76 Å were reported. [36][37][38][39] In contrast, slightly shorter Ga-Te bond lengths were reported for {[(Me 3 Si) 2 CH] 2 Ga-μ-Te} (2.5521(4) Å), 40 [(Me 3 Si) 2 CH] 2 GaTeSi(SiMe 3 ) 3 (2.535(1) Å), 41 whereas the Ga-Te bonds observed in Ga{TeSi(SiMe 3 ) 3 } 3 (av. 2.496(6) Å) 42 as well as in Tp # GaTe (2.422( 1)) (Tp # = tris(3,5-di-tert-butylpyrazolyl) hydroborato), to date the only compound containing a terminal Ga-Te double bond, are significantly shortened.…”

Synthesis and Crystal Structures of [(iPr3P)2Cu(μ‐ESiMe3)(InMe3)] (E = S, Se): Lewis Acid–Base Adducts with Chalcogen Atoms in Planar Coordination

“…The solid‐state structures of thioether adducts with AlMe 3 and InMe 3 ,2 organometallic complexes with two Al or Ga atoms coordinating a SMe – or SPh – moiety,3 and some corresponding intramolecular stabilized adducts with S donor atoms4 have been reported. The first adduct between TlMe 3 and a S donor atom was presented recently,5a and so far, the only structurally elucidated example for an Se atom coordinating a group 13 purely organometallic unit is the anion [MeSe(AlMe 3 ) 3 ] – 6…”