Free accessResearch articleFirst published online 2007-4
Synthesis and Characterisation of Dialkyl[2-(2-phenolato)Oxazolines] of Gallium(III) and Indium(III): Crystal Structure of [{InMe 2 (OC 6 H 4 -OxMe 2 )} 2 ]
Reactions of trialkylgallium/indium etherate with 2-(2-hydroxyphenyl)oxazolines afforded colourless dialkyl[2-(2-phenolato)oxazoline]gallium/indium complexes of the type [GaR2(OC6H4-OxR′R″)] (1) and [{InMe2(OC6H4-OxR′R″)}2] (2) (R = Me or Et; Ox = oxazoline, R′ = Me or Et; R″ = Me or H). These complexes were characterised by elemental analysis, IR, mass and NMR (1H and 13C) spectral data. The complex [{InMe2(OC6H4-OxMe2)}2] has a dimeric structure as established by X-ray diffraction. The indium atom acquires an irregular trigonal bipyramidal geometry defined by C2O2N ligating atoms.
RettigS.J., StorrA., TrotterJ., and UhrichK., Can. J. Chem., 1984, 62, 2783; Y. Shen, J. Han, H. Gu, Y. Zhu and Y. Pan, J. Organomet. Chem., 2004, 689, 3461.
19.
GhoshalS., DuttaD., KushwahaN., and JainV.K., Indian J. Chem.2005, 44A, 1139.
20.
BradleyD.C., FrigoD.M., HursthouseM.B., and HussainB., Organometallics, 1998, 7, 1112.
21.
SelfM.F., McPhailA.T., and WellsR.L., J. Coord. Chem., 1993, 29, 27.
22.
UhlW., EmdenC.H., and MassaW., J. Organomet. Chem., 2006, 691, 1382.
23.
HendershotD.G., BarberM., and KumarR., OliverJ.P., Organometallics, 1991, 10, 3302.
24.
RettigS.J., StorrA., and TrotterJ., Can. J. Chem., 1984, 62, 1705.
25.
DownsA.J., ed., “Chemistry of Aluminium, Gallium, Indium and Thallium”, Blackie Academic and Professional, Glassgow1993.
26.
BhattK.B., ChopadeS.M., DuttaD., JainV.K., PrasadN., and ShahA.Y., BARC/2002/R/001.
BurlaM.C., CamalliM., CascaranoG., GiacovazzoC., PolidoriG.R., SpagnaR., and ViterboD., J. Appl. Cryst., D, 1989, 22, 389.
29.
BeurskensP.T., AdmiraalG., BeurskensG., BosmanW.P., de GelderR., IsraelR., and SmitsJ.M.M., The DIRDIF – 99 program system 1999; Technical report of cyrstalloghraphy Laboratory, University of Nijmegen, The Netherlands.
30.
Least squares function minimisedσw(Fo2 – Fc2)2 where w = least squares weights
31.
CromerD.T., and WaberJ.T., “International Tables for X-ray Crystallography“ Vol IV, The Kynoch Press, Birmingham, England Table 2.2 A 1974.
32.
Crystal Structure 3.7.0: Crystal Structure Analysis Package, Rigaku and Rigaku/MSC 2000 – 2005. 9009 New Trials Dr. The Woodlands TX 77381 USA.
33.
WatkinsD.J., ProutC.K., CarruthersJ.R., and BetteridgeP.W., Chemical Laboratory, Oxford (U. K)1996.
