Syntheses, X-ray structures and CVD studies of diorganoalkoxogallanes

Synthesis and structural characterisation of gallium and indium fluoroalkoxide ‘ate’ complexes

“…The average bond distance for Na-O THF is 2.27 Å and for Na-O alk is 2.33 Å. These bond distances are comparable to those observed in [Na 3 Y(OCH(CF 3 ) 2 ) 6 (THF) 3 ] (2.238(9)-2.308(7) Å) [8]. The Na + coordination environment is completed by two THF molecules and secondary contacts with the fluorine atoms from neighbouring hexafluoroalkoxide ligands.…”

“…The range of angles around the In atoms is 81.4(4)-170. 8 (7), and 2.145(7) Å, respectively [33]. Also, the indium fluoroalkoxide [In{l-OCMe 2 (CF 3 )}{OCMe 2 (CF 3 )} 2 ] 2 has analogous bridging In-O alk bond distance of 2.129(5) Å [16].…”

“…Optimising volatility, decomposition temperatures and pathways [4,6], and solubility [7] relies primarily on appropriate ligand choice or design, as well as the nature of the metal itself. This is exemplified by recent reports on the use of donor-functionalized ligands such as aminoalkoxides [8,9]. Fluorinated alcohols are another alternative source of ligand which have the potential to impart favourable properties when compared with their non-fluorinated analogues [10].…”

Novel Gallium Complexes with Malonic Diester Anions as Molecular Precursors for the MOCVD of Ga2O3 Thin Films

“…To this end, the substitution of one or more methyl groups in Ga(CH 3 ) 3 with alcohols led to more stable complexes. [31,32] In the case of gallium alkoxides [Ga(OR) 3 ] x , which are reported to be tetramers for R = Me, Et, nBu, [33] an increase in the steric demand of the alkoxide ligands (R = iPr, tBu) leads to more volatile dimeric species. [34,35] Improved precursors can also be obtained by introducing functionalised groups capable of electronic and/ or steric stabilisation of the metal centre.…”

Diorgano-gallium and -indium complexes with salen ligands: Synthesis, characterization, crystal structure and C–C coupling reactions

“…The structural preferences in these complexes are governed by the nature of R, M and L [13][14][15][16][17][18][19][20][21][22][23][24][25]. Recently we have described the synthesis of diorgano-gallium/-indium complexes containing internally functionalized anionic oxo ligands [9,10,26,27].…”