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化学与材料学院党委组织师生观看庆祝中国共产党成立100周年大会直播 热议习近平总书记重要讲话精神
2021-07-02
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7月1日，庆祝中国共产党成立100周年大会在北京天安门广场隆重举行，化学与材料学院党委组织师生在番禺校区学院楼2022会议室、校本部超分子配位化学研究所一楼会...
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2020-03-24
Excimer and exciplex formation in a pair of bright phosphorescent isomers constructed from Cu3(pyrazolate)3 and Cu3I3 coordination luminophores
22次浏览
Shun-Ze Zhan, Mian Li, Xiao-Ping Zhou, Dan Li* and Seik Weng NgAbstract:Reported herein are a pair of supramolecular pseudo-isomers, namely, (Cu3I3)(Cu3L3)2?H2O (1) and (Cu3I3)(Cu3L3)2 (2) (L =3-(4-pyridyl)-5-isobutyl-pyrazolate), both of which incorporate Cu3Pz3 (Pz = pyrazolate) and Cu3I3 clusters as luminophores. The two complexes show distinct yellow (570 nm) and orange(638 nm) emissions, which are ascribed to the formation of the excimer and exciplex involving the same or different copper(I
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2020-03-24
From Simple to Complex: Topological Evolution and Luminescence Variation in a Copper(I) Pyridylpyrazolate System Tuned via Second Ligating Spacers
21次浏览
Shun-Ze Zhan, Mian Li, Xiao-Ping Zhou, Jia Ni, Xiao-Chun Huang, and Dan Li*Abstract:By systematically varying the geometric length and electronic properties of the second ligating ligands of halogen (Cl, Br, and I) and pseudohalogen (CN, SCN, and N3) anions, we synthesized 11 isomeric/isostructural copper(I) complexes: [Cu2(L3-3)I]n (1),[Cu2(L4-4)Br]n (2-Br), [Cu2(L4-4)Cl]n (2-Cl), [Cu2(L3-4)(CN)]n(3), [Cu2(L3-3)(CN)]n (4), [Cu3(L4-4)(CN)2]n (5), {[Cu2(L4-4)-Br]2 3 CuBr}n (6-Br), {[Cu2(L4-4
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2020-03-24
When Cu4I4 cubane meets Cu3(pyrazolate)3 triangle: dynamic interplay between two classical luminophores functioning in a reversibly thermochromic coordination polymer
19次浏览
Shun-Ze Zhan, Mian Li, Xiao-Ping Zhou, Jun-Hao Wang, Ju-Rong Yang and Dan Li*Abstract:A supramolecular dual emissive system incorporating two classical copper(I)-cluster-based luminophores, namely, Cu4I4 and Cu3Pz3 (Pz = pyrazolate), is reported. The targeted luminescent coordination polymer exhibits reversible thermochromism spanning from green to orange-red.文章链接：c1cc14303d.pdf
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2020-03-24
Semirigid Aromatic Sulfone_Carboxylate Molecule for Dynamic Coordination Networks: Multiple Substitutions of the Ancillary Ligands
18次浏览
Xiao-Ping Zhou, Zhengtao Xu,* Matthias Zeller, Allen D. Hunter, Stephen Sin-Yin Chui, and Chi-Ming Che.Abstract:We report dynamic, multiple single-crystal to single-crystal transformations of a coordination network system based on a semirigid molecule, TCPSB = 1,3,5-tri(40-carboxyphenylsulphonyl)benzene, which nicely balances shape persistence and flexibility to bring about the framework dynamics in the solid state. The networks here generally consist of (1) the persistent core component (denote
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2020-03-24
In situ selective N-alkylation of pendant pyridyl functionality in mixed-valence copper complexes with methanol and copper(II) bromide
32次浏览
Da-Qian Feng, Xiao-Ping Zhou, Ji Zheng, Guang-hui Chen, Xiao-Chun Huang and Dan Li*Abstract:The reactions of CuBr2 with pyridyl 2,2′:6′,2′′-terpyridine ligands in methanol yielded four copper complexes under solvothermal conditions. The self-assembly processes were accompanied by designing bitopic precursor ligands and increasing the stoichiometric metal–ligand ratio. In the four resulting complexes, the pendant pyridyl groups of pyridylterpyridine were selectively in situ N-methylated and yield
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2020-03-24
A High-Symmetry Coordination Cage from 38- or 62-Component Self-Assembly
23次浏览
Xiao-Ping Zhou, Jie Liu, Shun-Ze Zhan, Ju-Rong Yang, Dan Li,* Kwan-Ming Ng, Raymond Wai-Yin Sun, and Chi-Ming Che.Abstract:Artificial molecular architecture from a large number of subcomponents (50) via self-assembly remains a formidable challenge for chemists. Reaction of 38 components [14 Ni2+ and 24 N-methyl-1-(4-imidazolyl)methanimine] under solvothermal conditionsreproducibly leads to the formation of a high-symmetry coordination cage. This polyhedral cage can also be obtained in high yield
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