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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Crystal Transformations of Cu(I) Coordination Polymers with an N/S Donor Ligand: Novel 1D Triple Stranded Ladder Structure, Luminescence Solvatochromism and Thermochromism by Influence of Intermolecular Interactions or Heat

등록일
2014년 8월 28일 14시 00분 36초
접수번호
0932
발표코드
INOR.P-211 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
전영은, 조성화, 이상진, 강기행, 김태호*, 김진은*
경상대학교 화학과, Korea
Four copper(I) coordination polymers, {[Cu4I4L2].H2O}n (1), {[Cu4I4L2].2CH3CN}n (2), and {[Cu4I4L2]}n (polymorphs 3 and 4) with 2-(2-benzylthio)ethyl)pyrazine (L), have been prepared by self-assembly reaction between CuI and L. Four coordination polymers 1-4 show supramolecular isomerism by solvent molecules. Compounds 1-3 interconnected by stair-step Cu4I4 units are 1D looped chain structures. Remarkably, the crystal structure of CP 4 is 1D triple stranded ladder composed of 1D zigzag chain (CuI)n and stair-step (Cu2I2)n polymer units. The color of CP 1 changes from red at 298K to yellow at 77K and the color of CP 2 changes from orange at 298K to yellow at 77K. In addition, crystal transformation between 1-4 occurred reversibly by removal of solvent molecular or addition of solvents. The results of our investigation including synthesis, structural characterization, thermal and luminescent properties of four new Cu(I) coordination polymers are presented.

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