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  • 03월 03일 12시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

A Redox-Active 2D Coordination Polymer: Crystal Dynamics on Guest Removal and Preparation of Silver and Gold Nanoparticles

등록일
2006년 3월 8일 11시 03분 06초
접수번호
1249
발표코드
28P94포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅱ>
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
문회리, 백명현
서울대학교 화학과,
A 2D square grid coordination polymer, {[Ni(cyclam)]2[BPTC]}n2nH2O (1), has been assembled from [Ni(cyclam)](ClO4)2 and H4BPTC (H4BPTC = 1,1´-biphenyl-2,2´,6,6´-tetracarboxylic acid) in H2O/MeOH/TEA. By heating single crystal 1 at 180 °C under 10-5 Torr for 24 h, desolvated compound {[Ni(cyclam)]2[BPTC]}n (2) was obtained in the single-crystal-to-single-crystal manner. The X-ray crystal structure of 2 reveals extensive dynamic motions of the molecular components in response to guest removal, involving rotation, swing, and bending, which reduces the interlayer distance. The Ag (3.7 ± 0.4 nm, diameter) and Au (2 nm, diameter) nanoparticles were obtained by immersion of 1 in the EtOH solutions of AgNO3 and NaAuCl4·2H2O, respectively, for 5 min at room temperature, as evidenced by HRTEM images, EPR, and XPS spectra.

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