A Chiral 3 D Net with 2 D Cairo Pentagonal Tiling Projection in Site-Modified CuCN/CuSCN Networks

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• 作者：Shi-Hong Lin ; Mian Li ; Dong Luo ; De-Xiang Zhang ; Tian Wen ; Prof. Xiao-Ping Zhou and Prof. Dan Li
• 刊名：ChemPlusChem
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：81
• 期：8
• 页码：724-727
• 全文大小：1387K
• ISSN：2192-6506

文摘

A novel isohedral 3-periodic net (i.e. a net with one kind of tile), showing a Cairo pentagonal tiling projection on the Euclidean plane, has been identified in a series of site-modified CuCN/CuSCN networks, namely, [Cu₆(SCN)₂(CN)₆⋅Ni(tpy)₂]_n (1), [Cu₆(SCN)(CN)₇⋅Ni(tpy)₂]_n (2) and [Cu₆(CN)₈⋅Ni(tpy)₂]_n (3) (tpy=2,2′:6′′,2′′-terpyridine). These infinite inclusion compounds were prepared via a solvothermal sulfur migration reaction with subtle modification to fine-tune the sulfur content. The chiroptical activity of single crystals, which arises from the intrinsically chiral net, was confirmed by X-ray diffraction and solid-state circular dichroism spectra.