Synthessis and Characterization of Novel Volatile Imido-Aminoalkoxide Tantalum Compounds

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A novel Ta(V) Bu-t-imido/aminoalkoxide complex, Ta((NBu)-Bu-t)(dmamp)(2)Cl (1), was synthesized by metathesis reaction between Ta((NBu)-Bu-t)Cl-3(py)(2) and 2 equiv of Na-(dmamp), and subsequent reaction of 1 with 1 equiv of MeLi gave a new tantalum complex, Ta((NBu)-Bu-t)(dmamp)(2)Me (2). Compounds 1 and 2 have been characterized by IR, H-1 and C-13 NMR spectroscopy, and microanalytical data. The molecular structure of 1, determined by X-ray single crystallography, revealed distorted octahedral geometry. The behavior of compound 1 in solution was studied by variable-temperature H-1 NMR spectra. Thermogravimetric analysis revealed superior thermal properties of 2 as compared to those of 1.
Publisher
AMER CHEMICAL SOC
Issue Date
2012-12
Language
English
Article Type
Article
Keywords

ATOMIC LAYER DEPOSITION; CHEMICAL-VAPOR-DEPOSITION; OXIDE THIN-FILMS; DIAMIDO-PYRIDINE LIGANDS; HIGH THERMAL-STABILITY; METAL NITRIDE FILMS; HYDRODENITROGENATION CATALYSIS; DIELECTRIC APPLICATIONS; ORGANOIMIDO COMPLEXES; ALKYLAMIDE PRECURSORS

Citation

ORGANOMETALLICS, v.31, no.23, pp.8109 - 8113

ISSN
0276-7333
DOI
10.1021/om300436p
URI
http://hdl.handle.net/10203/102879
Appears in Collection
CH-Journal Papers(저널논문)
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