119th General Meeting of the KCS

Type Poster Presentation
Area 무기화학
Room No. 포스터발표장
Time 4월 21일 (금요일) 13:00~14:30
Code INOR.P-66
Subject Luminesence Vapochromism by Fast Guest Exchange of Copper(I) Coordination Polymers
Authors 박현진, 권은진, 임한수, 김태호*, 김진은*
경상대학교 화학과, Korea
Abstract Six Cu(I) Coordination Polymers (CPs) [Cu2I2L2]n (1), {[Cu2I2L2]•MeCN}n (2), [Cu4I4L2]n (3), {[Cu4I4L2]•CH2Cl2}n (4), {[Cu4I4L2]•CHCl3}n (5) and {[Cu4I4L2]•C6H6}n (6) have been synthesized by self-assembly reaction of CuI and a flexible ligand with mixed N/S donors, 4-(2-(cyclohexylthio)ethoxy)pyridine(L). CPs 1-6 were crystalized in space group Triclinic P-1. Single-crystal X-ray differaction analyses showed that 1D CPs 12 and 3-6 are supramolecular isomers based on rhomboid Cu2I2 and cubane Cu4I4 clusters, respectively. CPs 1 and 2 show emission maxima 419 nm and 432 nm, respectively. CPs 3-6 show emission maxima 535 nm, 539 nm, 542 nm and 546 nm, respectively. Crystal-to-crystal transformations between CPs 1-6 were reversible under appropriate solvent conditions (acetonitrile or dichloromethane or chloroform or benzene) or heat. Also, crystal transformations between CPs 1 and 3 occur through the addition of L or CuI. Moreover, CPs 3-6 exhibited reversible guest exchange and crystal transformation by exposure to gaseous volatile organic compounds and heat.
E-mail hj77park@naver.com