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The Synthesis of Fullerene Oxides with Various Oxidants by Ultrasonication
고원배,여인균,백경남 한국공업화학회 2001 한국공업화학회 연구논문 초록집 Vol.2001 No.-
The reaction of C<sub>60</sub> by ultrasonication with various oxidants such as Iodosobenzene (TCI-EP), Methyltrioxorhenium(VII)(TCI-EP), and Chromium(VI)oxide(Aldrich 99.996) causes the oxidation of fullerene [C<sub>60</sub>(O)<sub>n</sub>] (n□1). The FAB-MS, and HPLC analysis confirmed that products of fullerene oxidation are [C<sub>60</sub>(O)<sub>n</sub>] (n□1). Also, C<sub>120</sub>(O)<sub>n</sub>, (n=1) was synthesized by Ultrasonication with 3-chloroperoxy benzoic acid.
고원배,Byoung Eun Park,Young Min Lee,황성호 한양대학교 세라믹연구소 2009 Journal of Ceramic Processing Research Vol.10 No.1
The synthesis of gold nanoparticles was investigated with non-ionic surfactants such as polysorbate 80, brij 97 and KAuCl4 in water. The products of gold nanoparticle were well dispersed in water and investigated by UV-vis spectra and TEM. The reaction time for the synthesis of gold nanoparticles was investigated by monitoring the change of color and the change of the peak of the UV-vis spectra in the absence of ultrasonic irradiation and in the presence of ultrasonic irradiation. Gold nanoparticles reacted with 4-aminothiophenol in water and then, diethylether was added, and fullerene[C60] in toluene which was stirred for 24 h. The fullerene[C60]-gold nanoparticles were characterized by UV-vis and MALD-TOF-MS spectra.
방향족 아민 화합물과 풀러렌 산화물의 [C70(O)n](n≥1)의 초음파 화학 반응
고원배 ( Weon Bae Ko ),박병은 ( Byoung Eun Park ),이영민 ( Young Min Lee ) 한국고무학회 2008 엘라스토머 및 콤포지트 Vol.43 No.1
FeCl3를 첨가한 초음파 조건에서 4-nitroaniline, 3-nitroaniline, and 4-isopropylaniline등의 방향족 아민 화합물과 풀러렌 산화물[C70(O)n] (n≥1)을 반응시켰다. 이 반응은 방향족 아민 화합물을 사용한 풀러렌 산화물 쪼개짐 반응이다. MALDI-TOF-MS and UV-vis spectra를 사용하여 생성된 화합물이 아민화 풀러렌 유도체임을 확인하였다. Sonochemical reaction of fullerene oxides, [C70(O)n] (n≥1) with several aromatic amines such as 4-nitroaniline, 3-nitroaniline, and 4-isopropylaniline, in the presence of FeCl3 were investigated under ultrasonic irradiation. This method is applicable to a wide variety of aromatic amines especially ring deactivated, to afford the corresponding cleavage products under mild conditions. The aminated fullerenes were confirmed by MALDI-TOF-MS and UV-vis spectra.
고원배 ( Weon Bae Ko ),권석찬 ( Sock Chan Kown ),정홍식 ( Hong Seok Jeong ) 한국고무학회 2003 엘라스토머 및 콤포지트 Vol.38 No.2
풀러렌[C_60, C_70]을 benzoylperoxide, trichloroisocyanuric acid, methyltrioxorhenium(Ⅶ), iodosobenzene 그리고 phosphorous pentoxide 등의 산화제를 사용하여 상온, 초음파 조건에서 풀러렌 산화물을 제조하였다. MALDI-TOF MS, UV-VIS 그리고 HPLC를 사용하여 분석한 결과 생성된 풀러렌 산화물은 [C_60(O)_n](n=1~3, 또는 n=1) 과 [C_70(O)_n](n=1~2 또는 n=1)임을 알 수 있었다. 한편, 동일한 실험 조건에서 C_60 반응속도는 C_70보다 높았다. Synthesis of fullerene oxides by fullerenes [C_60, C_70] and several oxidants such as benzoylperoxide, trichloroisocyanuric acid, methyltrioxorhenium(Ⅶ), iodosobenzene, phosphorous pentoxide take place under ultrasonic condition at room temperature. The MALDI-TOF MS,UV-visible spectra and HPLC analysis confirmed that the products of fullerenes oxidation are [C_60(O)_n], (n=1~3 or n=1) and [C_70(O)_n], (n=1~2 or n=1). As compared with the reactivity of epoxidation of fullerenes [C_60, C_70], the reaction rate of C_70 was lower than that of C_60 under same reaction condition.
[C70]풀러렌 산화 반응의 거동에 관한 초음파 분광학적 고찰
고원배 ( Weon Bae Ko ) 한국고무학회 2014 엘라스토머 및 콤포지트 Vol.49 No.2
1,2-dichlorobenzene용액에서 [C70]풀러렌 과 3-chloroperoxy benzoic acid 산화반응의 거동을 고분해능 초음파 분광기를 사용하여 고찰하였다. UV-vis spectroscopy, X-ray diffraction 을 가지고 [C70]풀러렌 산화 반응의 생성물을 확인하였다. High resolution ultrasonic spectroscopy was used to observe the oxidation of [C70]fullerene with 3-chloroperoxy benzoic acid in 1,2-dichlorobenzene. UV-vis spectroscopy and X-ray diffraction confirmed the resulting products of [C70] fullerene oxidation.