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CuCN Pillars Induce Face-to-Face π-Overlap of Anthracene-Based Thioether Molecules within a Hybrid Coordination Network

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posted on 07.05.2008, 00:00 by Yan-Qiong Sun, Chun-Kwan Tsang, Zhengtao Xu, Guo Huang, Jun He, Xiao-Ping Zhou, Matthias Zeller, Allen D. Hunter
The large aromatic ligand 9,10-bis{[3,4-bis(methylthio)phenyl]ethynyl}anthracene (L) interacts with CuCN to form a 2D, fluorescent hybrid network, L·2CuCN. Although the edge-to-face stacking between the organic π-electron systems prevails in the molecular crystal structure of L, the face-to-face stacking becomes more distinct in L·2CuCN. A preliminary survey on similar hybrid networks in the Cambridge Structural Database (CSD) suggests that 1D inorganic moieties may help maintain and induce cofacial stacking of the associated aromatic ligands.