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이핵 Mn(Ⅱ)-Tetraazadioxa 거대고리 리간드 착물의 합성과 특성 연구
한충훈,변종철 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2
2. 6-diformyl-pcresol과 2, 20dimethyl-1, 3-propanediamine의 금속 주형 축합반응으로 20-membered tetraazadioxa Schiff 염기 거대고리 리간드{5, 5, 11, 17, 17, 23-hexamethyl-3, 7, 15, 19-tetraazatricyclo[19, 3, 1,1^(9,13)]hexacosa -1(25), 2, 7, 9, 11, 13(26), 14, 19, 21, 23-decaene-25, 26-diol(H₂L_(mc)]}의 이핵 Mn(Ⅱ)착물을 합성하고, 그 성질들을 확인하였다. Binuclear Mn(Ⅱ) complexes of the 20-membered tetraazadioxa Schiff base macrocyclic ligand{5, 5, 11, 17, 17, 23-hexamethyl-3, 7, 15, 19-tetraazatricyclo[19, 3, 1,1^(9,13)]hexacosa -1(25), 2, 7, 9, 11, 13(26), 14, 19, 21, 23-decaene-25, 26-diol(H₂L_(mc)]} have been synthesized by metal template condensation of 2, 6-diformyl-pcresol and 2, 2-dimethyl-1, 3-propanediamine.
Pr(Ⅲ)-,Sm(Ⅲ)-,Gd(Ⅲ)-,Dy(Ⅲ)-거대고리 착물과 보조리간드 간의 화학평형
변종철,한충훈 濟州大學校 基礎科學硏究所 1997 基礎科學硏究 Vol.10 No.1
A facile and direct preparative method of 2-hydroxyisophthaladehydes from 2,6-bis(hydroxymethyl)phenols using activated manganese(Ⅳ) oxide is discribed. Lanthanide(Ⅲ){Ln = Pr³+, Sm³+, Gd³+, Dy³+} complexes of the 20-membered dioxatetraazamacrocycle(20-DOTA) are synthesized by the schiff base condensation of 2,6-diformyl-p-cresol with 1,2-diaminobezene in the presence of lanthanide(Ⅲ)nitrate hydrate at ambient temperature. Discrete mononuclear lanthanide(Ⅲ) complexes of the type 〔Ln(20-SOTA)(NO₃)(H₂O)〕(NO₃)₂·nH₂O have been synthesized in the solid state. The equilibrium constants for following reaction in CH₃OH ?? have been determined at ambient temperature by the UN-VIS spectrophotometric method.