Synthesis, AACVD and X-ray crystallographic structures of group 13 monoalkoxometallanes

TY - JOUR

T1 - Synthesis, AACVD and X-ray crystallographic structures of group 13 monoalkoxometallanes

AU - Knapp, Caroline E.

AU - Pemberton, Leah

AU - Carmalt, Claire J.

AU - Pugh, David

AU - McMillan, Paul F.

AU - Barnett, Sarah A.

AU - Tocher, Derek A.

PY - 2010

Y1 - 2010

N2 - The group 13 monoalkoxometallanes [Me2Ga(OC(CH3) 2CH2OMe)]2 (1) and [Me 2In(OCH(CH3)CH2OMe)]2 (2), incorporating donor functionalised alkoxides, were synthesised from the reaction of GaMe3 or InMe3 with ROH (R=C(CH3) 2CH2OMe (1); R=CH(CH3)CH2OMe (2)) in toluene. X-ray crystallography showed that both compounds adopt dimeric structures with a planar M2O2 ring, and each group 13 atom is coordinated in a distorted trigonal bipyramidal geometry. The AACVD reaction of GaMe3 and ROH (R =C(CH3)2CH2OMe, CH2CH2OMe, CH2CH2NMe2) resulted in the formation of thin films of Ga2O3 on glass substrates at 450°C. The gallium oxide films were analyzed by scanning electron microscopy, X-ray powder diffraction, energy dispersive analysis of X-rays, wavelength dispersive analysis of X-rays and X-ray photoelectron spectroscopy. This CVD technique offers a rapid, convenient route to Ga 2O3, which involves the in situ formation of dimethylgallium alkoxides, of the type [Me2Ga(μ-OR)]2 similar to compound 1.

AB - The group 13 monoalkoxometallanes [Me2Ga(OC(CH3) 2CH2OMe)]2 (1) and [Me 2In(OCH(CH3)CH2OMe)]2 (2), incorporating donor functionalised alkoxides, were synthesised from the reaction of GaMe3 or InMe3 with ROH (R=C(CH3) 2CH2OMe (1); R=CH(CH3)CH2OMe (2)) in toluene. X-ray crystallography showed that both compounds adopt dimeric structures with a planar M2O2 ring, and each group 13 atom is coordinated in a distorted trigonal bipyramidal geometry. The AACVD reaction of GaMe3 and ROH (R =C(CH3)2CH2OMe, CH2CH2OMe, CH2CH2NMe2) resulted in the formation of thin films of Ga2O3 on glass substrates at 450°C. The gallium oxide films were analyzed by scanning electron microscopy, X-ray powder diffraction, energy dispersive analysis of X-rays, wavelength dispersive analysis of X-rays and X-ray photoelectron spectroscopy. This CVD technique offers a rapid, convenient route to Ga 2O3, which involves the in situ formation of dimethylgallium alkoxides, of the type [Me2Ga(μ-OR)]2 similar to compound 1.

KW - CVD

KW - Gallium alkoxide

KW - indium alkoxide

KW - synthesis

UR - http://www.scopus.com/inward/record.url?scp=77954908673&partnerID=8YFLogxK

U2 - 10.3233/MGC-2010-0002

DO - 10.3233/MGC-2010-0002

M3 - Article

AN - SCOPUS:77954908673

SN - 1024-1221

VL - 9

SP - 31

EP - 40

JO - Main Group Chemistry

JF - Main Group Chemistry

IS - 1-2

ER -