- P-ISSN 1225-0163
- E-ISSN 2288-8985
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, <TEX>$^1H$</TEX> 및 <TEX>$^{13}C$</TEX> NMR 그리고 UV-Vis 스펙트라로 확인하였다. 이 착물에 대한 가수분해 반응을 <TEX>$^1H$</TEX>-NMR spectroscopy를 이용해 관찰하였고 FT-IR spectroscopy로 가수분해 및 건조시킨 후의 구조 변화를 관찰하여 보았으며 리간드의 존재 유무도 살펴보았다.
The systematic modification of titanium(IV) isopropoxide with acetic acid as a organic additive was done and identifided by FT-IR, <TEX>$^1H$</TEX>, <TEX>$^{13}C$</TEX> 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 <TEX>$^1H$</TEX> NMR spectroscopy. This modified Ti(IV) alkoxide was less reactive toward hydrolysis-condensation reaction than <TEX>$Ti(OPr^i)_4$</TEX>, 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.