화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관)
권호 34권 2호
발표분야 고분자 구조 및 물성
제목 Highly-Ordered Bilayer Structures of Gold(I)-Alkanethiolates Having Two Types of Alkyl Groups
초록 The luminescent gold(I)-alkanethiolates containing two types of alkyl groups, Au(I)-(SR)x(SR’)ys, were synthesized by mixing HAuCl4 with two n-alkanethiols in tetrahydrofuran. Au(I)-(SR)x(SR’)ys have highly-order bilayer structures and the dominant conformation of the alkyl groups were found to be all-trans from X-ray diffraction and FT-IR spectroscopy studies. The gold nanoparticles stabilized by two types of alkanethiolates could be prepared by reducing the Au(I)-(SR)x(SR’)ys using tetrabutylammonium borohydride (TBABH) as a reducing agent. Elemental analysis results of Au(I)-(SR)x(SR’)ys and gold nanoparticles prepared from Au(I)-(SR)x(SR’)ys indicated that that the longer alkanethiols are more reactive for the formation of Au(I)-(SR)x(SR’)ys and also the longer alkylthiolate are preferentially absorbed on the gold particles compared with the shorter ones.
저자 차상호, 김기현, 이원기, 이종찬
소속 서울대
키워드 gold complexes; alkanethiolates; lamellar; gold nanoparticles
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