Patent ID: 8710253
Filing Date: 2014-04-29
Classification: C07F,C23C

Abstract:
1. A solution-based precursor comprising a solid precursor dissolved in a solvent having a boiling point closely matched to that of the solid precursor, the precursor having the formula: wherein M is a metal, m is the oxidation state of the metal M and is from 0 to 7, and A and B are the same or different and are selected from the group of chemical classes comprising a) cyclopentadienyl (Cp) and its derivatives (R1R2R3R4R5Cp; wherein R1, R2, R3, R4 and R5 are the same or different and can be hydrogen or alkyl [C n H 2n+1 , n=1-6]); b) primary, secondary or tertiary alkyl groups (C n H 2n+1 , n=1-12); c) cycloalkyl groups (C n R 2n−1 , n=3-12, wherein R is hydrogen or alkyl groups); d) cycloalkyldienes (C n R 2n−4 , n=4-12, wherein R is hydrogen or alkyl groups); e) benzene and its derivatives (R1R2R3R4R5R6C 6 ; wherein R1, R2, R3, R4, R5 and R6 are the same or different and can be hydrogen or alkyl [C n H 2n+1 , n=1-6]); f) amides (R1R2N, wherein R1 and R2 are the same or different and can be hydrogen or alkyl [C n H 2n+1 , n=1-6]); and g) bidentate ligands (R1E1=C(R3)−[C(R4)=C(R5)] n −E2R2, wherein E1 and E2 are the same or different and can be nitrogen, oxygen, phosphorus or sulfur, n=0-4, R1, R2, R3, R4 and R5 are the same or different and can be none, hydrogen, any alkyl or any aryl groups) and wherein x+y=m, if m≠0 and A and B are uni-negatively charged groups or otherwise x+y=1 to 8.