• Journal of the Korean Chemical Society
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• v.26 no.4
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• pp.250-252
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• 1982

• Journal of the Korean Chemical Society
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• v.55 no.2
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• pp.304-307
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• 2011

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2005.05a
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• pp.301-305
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• 2005

3-메틸-1-페닐-2-피라졸린-5-은과 N,N-디에틸-1,4-페닐렌디아민의 반응에서 마젠타 아조메틴색소(M)를 합성하였다. 마젠타 아조메틴 색소는 에탄올, 아세톤, 그리고 클로로포름에 잘 녹는다. 원소분석, 핵자기공명스펙트럼, 적외선 홉수 스펙트럼, 그리고 GC/MS 스펙트럼에서부터 마젠타 아·조메틴 색소임을 확인하였다. 마젠타 아조메틴 색소는 염기성용액에서 분해된다. 에탄을 수용액에서 염기에 의한 마젠타 아조메틴 색소의 퇴색반응을 분광학적인 방법으로 540 nm에서 측정하였다. 그리고 OH$^-$와 H$_{2}$O(11${\sim}$40 M의 범위)의 농도가 증가함에 따라 퇴색반응속도는 증가하였다. 이 반응에 대한 실험속도 식은 다음과 같다. -d[D]/dt = {k$_{OH}$[OH$^-$][H$_{2}$O]}[D] 이 속도식과 일치하는 메커니즘을 제시하였다.

• Journal of the Korean Chemical Society
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• v.55 no.2
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• pp.235-239
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• 2011

Fe/Al-MCM-41was found to be an effective catalyst for the synthesis of quinoxaline derivatives from the condensation of the 1,2-diamines and 1,2-dicarbonyl compounds in good yields. The catalyst is recyclable and reusable.

• Journal of the Korean Chemical Society
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• v.54 no.1
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• pp.43-48
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• 2010

Polyamide derived from azo compound of o-amino phenol coupled with acetyl acetone, maleic anhydride acid and p-phenylene diamine were prepared. The prepared polyamide (PA) was refluxed with metal salts of transition metal ions include, $Co^{+2},\;Cr^{+2},\;Ni^{+2},\;Cu^{+2},\;Zn^{+2},\;Cd^{+2}$ and $Fe^{+3}$ in dimethyl formamide (DMF) in different molar ratios. These complexes were characterized and identified by elemental and thermal analysis, IR, 1H NMR spectra. The data showed that PA ligand coordinates with metal ions in abidentate manner through donating N=N and O-H groups. The metal ions are surrounded by coordinated water molecules and anions to establish the geometrical structure of the complexes. The thermal analysis degradation at different temperatures explained the weight loss of hydrated water and the decompositions of complexes until a constant weight loss of metal oxides is obtained.