Neopentyl- or tert-butylzinc complexes with diethylthio- or diethylselenocarbamates: precursors for zinc chalcogens

Bis(μ-diethyldithiocarbamato)-1κS,1:2κ2S';2κS,1:2κ2S'-bis(ethylzinc)

“…The Zn atoms are four coordinate and the coordination geometry can be described as distorted tetrahedral. The structure is similar to those recently reported for a neopentylzincdiselenocarbamate dimer (Malik, Motevalli, Walsh & O'Brien, 1992), a methylzincdithioearbamate dimer (Hursthouse, Malik, Motevalli & O'Brien, 1991) and methyl-or ethylzinediselenocarbamate dimers (Hursthouse, Malik, Motevalli & O'Brien, 1992a). The structure also resembles the dimeric units found in bis(thiocarbamates) and bis(selenocarbamates) (Bonamico, Mazzone, Vaciago & Zambonelli, 1965;Bonamico & Dessy, 1971;Domenico, Torelli, Vaciago & Zambonelli, 1968;Hursthouse, Malik, Motevalli & O'Brien, 1992b) but with the alkyl group replacing the chelating-only earbamate group.…”

Structural Organozinc Chemistry

“…Solid state structure of 231 the small bite angle of the dithiocarbamate chelate, the geometry at the zinc atoms is rather distorted tetrahedral. The solid state structures of the corresponding ethylzinc N,Ndiethyldithiocarbamate 304 and the selenium analogs methylzinc, ethylzinc and (trimethylsilyl)methylzinc N,N-diethyldiselenocarbamate 305,306 have been determined, and all are isostructural with 232.…”

MOCVD of Chalcogenides, Pnictides, and Heterometallic Compounds from Single-Source Molecule Precursors

“…[82] Films of ZnS, ZnSe, CdSe, and Zn 0.5 Cd 0.5 Se were grown by LP-MOCVD on glass plates, at 450 C, from [(R)Zn(S 2 CNEt 2 )] 2 (with R = Me, [82] Me 3 C, and Me 3 CCH 2 [84] ), [(R)Zn(Se 2 CNEt 2 )] 2 (with R = Me and Et, [83,85] Me 3 C and Me 3 CCH 2 [84] ), [(Me)Cd(Se 2 CNEt 2 )] 2 , and [(Me)Zn 0.5 Cd 0.5 (Se 2 CNEt 2 )] 2 , [83] respectively, in a hot-wall reactor. Bandgaps measured at room temperature were pretty close to expected values.…”