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S_N1 치환 반응에 의한 N-불포화 알킬카르바졸 유도체의 합성에 관한 연구
정평진,조을훈 단국대학교 1998 論文集 Vol.32 No.-
N-unsaturated alkylcarbazole derivatives were synthesized by the unimolecular nucleophilic substitution(S_Nl) of a carbazole with an unsaturated alkyl chloride. The reaction between the carbazole and unsaturated alkyl chloride was conducted in dimethyl sulfoxide (DMSO) containing an alkali (NaOH or KOH) for 4hrs under nitrogen atmosphere at room temperature. At this time the mole ratios between the carbazole alkali and unsaturated alkyl chloride were found to be 1 : 6 : 1, 1 : 3 : 1 and 1 : 1 : 1, respectively. All the compounds including starting materials and reaction products were characterized by CHN analysis ^1H-NMR and FT - IR spectroscopy.
정평진,박노훈 단국대학교 1998 論文集 Vol.33 No.-
The Nalkylcarbazole polymers were synthesized by cationic polymerization. These polymerizations were reacted under different condition for 3hrs or 24 hrs. These reactions between Nunsaturatedalkylcarbazole monomers and boron trifluoride diethyl etherate(BF_3ㆍEt_2O) were conducted in toluene at ice water bath under N_2 atmosphere or in benzene at room temperature under vacuum atmosphere. At htis time the starting materials were monomer 1.0g and initiator 1.42㎎, respectively. All of these compounds of substrates and products were characterized by melting point. FTIR and ^1HNMR spectroscopy.
정평진 ( Pyung Jin Chung ),조민주 ( Min Ju Cho ) 한국화상학회 2002 한국화상학회지 Vol.8 No.1
Red emitting materials were synthesized and characterized as a fundanmental study on organic electroluminescence (EL). Individual red emitting materials were synthesized from the condensation of p-dimethylaminobenzaldehyde with esters (methyl 4-aminoberuoate, ethyl 4-aminobenzoate, propyl 4-aminobenzoate, isopropyl 4-aminobenzoate, butyl 4-aminobenzoate and isobutyl 4-aminobenzoate), respectively. The structures obtained materials were elucidated by FT-IR, ^1H-NMR and the emission spectra taken by photoluminescence(PL) measurement.
정평진(Pyung Jin Chung),임회득(Hoi Deuk Lim) 한국화상학회 2001 한국화상학회지 Vol.7 No.1
This study was based on organic electroluminescence. Organic fluorescent materials of hydrazones according to condensation reaction was synthesized and characterized. Individual red, green, blue colored hydrazone derivatives were synthesized from the reaction of aldehydes (p-dimethylaminobenzaldehyde, p-diethylaminobenzaldehyde, terephthalaldehyde, isophthalaldehyde, and phthalaldehyde) with amines (4,4-diaminobenzophenone, 1-methyl-1-phenylhydrazine, and 1,1-diphalylhydraaine hydrochloride). The structure of obtained materials were elucidated FT-IR, ^1H-NMR and elemental analysis. Photoluminescence (PL) analysis showed that emission peaks were red (635nm), green (501~508nm), blue (458~478nm).ed to methanol was observed to be enough to lead to micron sized particles.
아민을 리간드로 갖는 산소가교 팔라듐 착화합물의 합성에 관한 연구
정평진 ( Pyung Jin Chung ) 한국공업화학회 1992 공업화학 Vol.3 No.1
초과산화이온(O_2^-)의 발생원으로서 KO_2를 사용하여 새로운 형태의 산소가교 팔라듐 착화합물을 합성했다. 이 방법은 구핵치환반응과 전자이동에 의한 반응으로서 원자가가 낮은 전이금속 착화합물에 산소분자를 산화적으로 부가시켜 합성한 종전의 방법과는 완전히 다르다. 초과산화이온(O_2^-)에 의하여 아민을 리간드로 갖는 새로운 형태의 3종류의 산소가교 팔라듐 착화합물을 합성했다. New type dioxygen bridged complexes of palladium were prepared by using KO_2 as a source of superoxide ion(O_2^-). The method is completely different from the traditional one which has adopted the oxidative addition of molecular oxygen to prepare the dioxygen complexes. This reaction proceeds via nucleophilic displacement followed by electron transfer reaction. Three new type dioxygen complexes of palladium having amine ligands were prepared and characterized by the application of the reaction of O_2^-.