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Type |
Poster Presentation |
Area |
Inorganic Chemistry |
Room No. |
Exhibition Hall 2+3 |
Time |
10월 19일 (목요일) 11:00~12:30 |
Code |
INOR.P-15 |
Subject |
Stepwise Synthesis and Selective Sensing of Nitrobenzene Using Copper(I) Coordination Polymers |
Authors |
Hyunjin Park, Hansu Im, Tae Ho Kim*, Jineun Kim* Department of Chemistry, Gyeongsang National University, Korea |
Abstract |
Five Copper(I) coordination polymers(CPs), [Cu2I2L2]n (1), [Cu4I4L2]n (2a),{[Cu4I4L2]·2CH3CN}n (2b), {[Cu4I4L4]·0.5C6H6}n (2c), {[Cu6I6L2]·2C3H6O}n (3) have been prepared by self-assembly reactions between CuI and 2-(2-benzylthio)ethyl)pyrazine (L). CPs 1-3 are determined by single crystal x-ray diffraction. CPs 1 and 3 were crystalized in space group orthorhombic Pbca and monoclinic P21/n, respectively. CPs 2a-2c were crystalized in space group triclinic P-1.
CP 1 has a 2D network structure based on dimer-like Cu2I2 cluster nodes and CPs 2a-2c have 1D loop chain structures based on stair step-like Cu4I4 cluster nodes, in which solvent molecules are different. CP 3 shows a 2D network structure based on 1D stair-step of stair-step (Cu6I6)n polymers. The solvent-mediated reversible crystal-to-crystal transformations between CPs 2a-2c were achieved by exposing solvent vapor or soaking the crystalline samples in diverse solvents (acetonitrile, benzene). Interestingly, CP 3 has been stepwisely synthesized from CP 1 via CP 2b by removal of L, which cannot be obtained by the direct reaction of L and CuI. Moreover, emission of CP 2b is selectively quenched by nitrobenzene with good sensitivity.
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E-mail |
hj77park@naver.com |
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