Titanium(IV) isoproxide 유도체의 합성 및 특성연구
Characterization and Synthesis of Titanium (IV) Isopropoxide Derivatives
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.6, pp.509-514
정미원
정미원.
(1999). Titanium(IV) isoproxide 유도체의 합성 및 특성연구. , 12(6), 509-514.
초록
Titanium(IV) isoproxide에 유기첨가제로 아세트산을 첨가하여 단일성분계인 치환된 titanium(IV) isoproxide를 합성한다. 합성된 titanium 착화합물은 세가지 형태로 된 5배위 및 6배위의 구조로 존재함을 FT-IR, $^1H$ 및 $^{13}C$ NMR 그리고 UV-Vis 스펙트라로 확인하였다. 이 착물에 대한 가수분해 반응을 $^1H$-NMR spectroscopy를 이용해 관찰하였고 FT-IR spectroscopy로 가수분해 및 건조시킨 후의 구조 변화를 관찰하여 보았으며 리간드의 존재 유무도 살펴보았다.
- keywords
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Titanium(IV) isopropnxide,
Hydrolysis-rondensation,
<TEX>$^1H$</TEX> and <TEX>$^{13}C$</TEX> NMR spectroscopy
Abstract
The systematic modification of titanium(IV) isopropoxide with acetic acid as a organic additive was done and identifided by FT-IR, $^1H$, $^{13}C$ NMR and UV-Vis spectroscopy. The structure was cbanged after hydrolysis-condensation reaction and drying process. The hydrolysis-condensation rates of modified Ti alkoxide with acetic acid were investigated by $^1H$ NMR spectroscopy. This modified Ti(IV) alkoxide was less reactive toward hydrolysis-condensation reaction than $Ti(OPr^i)_4$, which can be attributed to the stable ligand structure between Ti alkoxide and ligand. The structural change on obtained from gel powders with heat treatment was also observed by FT-IR spectroscopy.
- keywords
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Titanium(IV) isopropnxide,
Hydrolysis-rondensation,
<TEX>$^1H$</TEX> and <TEX>$^{13}C$</TEX> NMR spectroscopy