报告题目：Structural Transformation and Solvent-Induced Luminescence of Metal-Organic Coordination Architectures

报 告 人：Biing-Chiau Tzeng

报告地点：前卫北区科技楼314
报告时间：2019年9月16日10:00

报告摘要：Interpenetrating polyrotaxane networks were recognized as an interesting class of metal-organic materials.1 In this context, a 1-D double-zigzag framework, {[Zn(paps)2(H2O)2](ClO4)2}n (paps = N,N'-bis(pyridylcarbonyl)-4,4'-diaminodiphenyl thioether), was synthesized by the reaction of Zn(ClO4)2 with paps. However, a similar reaction, except that dry solvents were used instead, led to the formation of a novel 2-D polyrotaxane framework, [Zn(paps)2(ClO4)2]n. Notably, both structures can be interconverted by heating and grinding in the presence of moisture,2a,2b and such reversible structural transformation can also be proven experimentally by powder and single-crystal X-ray diffraction studies. The related papo (papo = N,N'-bis(pyridylcarbonyl)-4,4'-diaminodiphenyl ether) frameworks have been prepared2b and the metal/anion2c,2d and hybrid-ligand effects,2e and the related N-(4-(4-aminophenyloxy)phenyl)isonicotinamide (papoa)2f has been examined as well. In addition, [Au2(O5NCS2)2]2CH3CN (O5NCS2 = (aza-18-crown-6)dithiocarbamate) has been synthesized, and its crystal structure displays a dinuclear Au(I)-azacrown ether ring and an intermolecular close contact.3 It is noted that two other single crystals of tert-butylbenzene and m-xylene solvates can be successfully obtained from a single-crystal-to-single-crystal (SCSC) transformation process. In this regard, we try to extend our previous study3 and examine the solvent-induced luminescence as well as their correlation between intermolecular Au(I)×××Au(I) distances and luminescence energies among nine structures with various solvates.

Keywords: structural transformation; supramolecular; interpenetrating; polyrotaxane; metal-organic materials; double-zigzag
参考文献:

1. Yang, J.; Ma, J.; Batten, S. R. Chem. Commun. 2012, 48, 7899.

2. (a) Tzeng, B.-C.; Chang, T.-Y.; Sheu, H.-S. Chem. Eur. J. 2010, 16, 9990. (b) Tzeng, B.-C.; Chang, T.-Y.; Wei, S.-L.; Sheu, H.-S. Chem. Eur. J. 2012, 18, 5105. (c) Tzeng, B.-C.; Wei, S.-L.; Chang, T.-Y. Chem. Eur. J. 2012, 18, 16443. (d) Tzeng, B.-C.; Yeh, C.-T.; Chang, T.-Y. ChemPlusChem 2014, 79, 387. (e) Tzeng, B.-C.; Chang, T.-Y.; Tsai, M.-H.; Lin, Y.-T.; Lee, S.-F.; Sheu, H.-S. ChemPlusChem 2015, 80, 878. (f) Tzeng, B.-C.; Hung, Y.-C.; Lee, G.-H. Chem. Eur. J. 2016, 22, 1522.

3. Tzeng, B.-C.; Chao, A. Chem. Eur. J. 2015, 21, 2083.