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CCS Chemistry 2022年第8期4卷 2806-2815页

作者： De-Hui Tuo Yu-Fei Ao Qi-Qiang Wang De-Xian Wang Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049

A triangular prism cage 2 with benzene triimide(BTI)as the base and 2,7-naphthalene dimethylene as the supporting pillars was designed and synthesized *** two parallel BTI planes constitute a cavity of 7.58Åwhich allo... 详细信息

关键词： benzene triimide molecular cage anion-πinteractions anion binding polyhedral anions cooperativity

Neutral C–H bond vs. electron pair of N(sp^2): A binding site effect study of macrocycle anion receptor

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Chinese Chemical Letters 2014年第8期25卷 1125-1131页

作者： Chuan-Cai Fan Li-Jin Xu Han-Yuan Gong Department of Chemistry Renmin University of China College of Chemistry Beijing Normal University

To evaluate the effect of neutral C–H bond or electron pair of nitrogen atom with sp2hybridization（N（sp2）） involving into the same chemical environment for anion binding, two analogous tetracationic imidazolium macrocycles, namely cyclo[2]（2,6-bis-（1H-imidazol-1-yl）pyridine） [2]（1,3-dimethylenebenzene）（14＋）, and cyclo[2]（2,6-bis-（1H-imidazol-1-yl）pyridine）[2]（2,6-di methylenepyridine）（24＋）were studied in detail as small inorganic anion receptors. The guest anions with different shapes are Cl,N3, NO3, and H2PO4. The host–guest interactions were characterized via1 H NMR spectroscopy,electrospray ionization mass spectrometry（ESI-MS） and single crystal X-ray crystallography. The results implied that macrocyclic hosts with similar backbone but two distinct binding sites（14＋with neutral C–H vs. 24＋with N（sp2）） vary markedly in their response to anions, including the binding modes and association constants. The finding will serve to the construction of new anion receptors, even improve insights into the anion binding process in biology.

关键词： Macrocycle anion binding Neutral C-H bond N(sp2) Hydrogen bond

Unprecede nted tunable hydrophobic effect and anion recognition triggered by AIE with Hofmeister series in water

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Chinese Chemical Letters 2021年第5期32卷 1679-1682页

作者： Pan Wang Shixian Cao Ting Yin Xin-Long Ni Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou UniversityGuiyang 550025China

An un precedented tun able hydrophobic effect in self-assembly of a small cationic organic fluorophore(NI-TPy^(+))-based with aggregation-induced emission(AIE)property was realized in aqueous *** amplification of hydrophobicity was found to be significantly dependent upon the increasing aggregates of NI-TPy^(+),which enabled the study of the hydrophobic binding of chaotropic anions with the Hofmeister series.

关键词： AIE anion binding Hofmeister series Hydrophobic effect Self-assembly

Crystal Structures of Fluoride and Chloride Complexes of Tris[(2-benzimidazolyl)methyl]amine

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Chinese Journal of Structural Chemistry 2008年第7期27卷 871-876页

作者：尹振明董莉刘尚远 College of Chemistry and Life Science Tianjin Normal University

The crystal structures of fluoride and chloride complexes of tris[（2-benzimidazolyl）methyl]amine 1 were characterized by X-ray crystallography. 1 adopts （73 symmetrical geometry and cone-like conformation so as to allow its three NHs to associate with the anions through hydrogen bonds. Despite the different sizes of the anions, the two crystals are unexpectedly isostructural. The binding ability of the anions of 1 in solution was also studied by using of UV-vis spectroscopy.

关键词： tris[(2-benzimidazolyl)methyl]amine anion binding structure

Sulfate binding with a Tripodal Tris（4-pyridylurea） Receptor

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Chinese Journal of Chemistry 2013年第5期31卷 679-683页

作者： Rui Zhang Yanlei Zhang Jiamin Wang Liguo Ji Xiaojuan Huang Biao Wu Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an Shannxi 710069 China State Key Laboratory for Oxo Synthesis & Selective Oxidation Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou Gansu 730000 China

The tris（2-aminoethyl）amine （tren）-based tris（4-pyridylurea） receptor L has been synthesized and its anion binding properties were studied. The ligand forms a 2 ： 1 （host/guest） complex with MgSO4, [SO4^2 L2], in which a sulfate ion is encapsulated by six urea groups from the two ligands through multiple hydrogen bonds. The metal ions do not coordinate to the pyridyl groups but exist as the hydrate [Mg（H2O）6]2＋ and interact with the [SO4 L2] capsules in the outer coordination sphere to form a three dimensional extended structure. The anion binding behav- ior of ligand L in solution was studied.

关键词： anion binding tripodal tris(4-pyridylurea) sulfate capsule

Structure of [Co(im)6]SiF6：Short Hydrogen Bonds Involving SiF62- Ions

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Chinese Journal of Structural Chemistry 2017年第6期36卷 965-970页

作者： NAZIR Sadia ARIF Muhammad RASHID Muhammad Abid WHITWOOD Adrian Charles Department of Chemistry Govt. College Women University Faisalabad 3800 Pakistan Institute of Chemical Sciences Bahhauddin Zakariya University Multan 60800 Pakistan Department of Chemistry University of Agriculture Faisalabad 38040 Pakistan Department of Chemistry University of York Heslington York YO10 5DD UK

A new complex C（18）H（24）CoF6N（12）Si has been synthesized by the reaction of cobalt（II） fluoride tetrahydrate with imidazole in a glass vessel. SiF62-was generated by in situ reaction of fluoride on silica. This complex has been characterized by different techniques such as elemental analysis, IR studies, magnetic measurements, electronic absorption measurements and single-crystal X-ray structure determination. The crystals are hexagonal in the R-3 space group, with a = 13.225（6）, b = 13.225（6）, c = 12.517（11） A, and g = 120°. In complex [Co（im）6]SiF6, the cobalt atom is six-coordinated to adopt a regular octahedral geometry and the SiF62-ion acts as the counter anion. The crystal displays a network structure and SiF62- bridging hexagram formation by N-（39）···F-Si interactions between imdazole and SiF62-. SiF62-plays an important role in assembling the supramolecular aggregates.

关键词： anion binding imidazole SiF62- hydrogen bonds transitionmetal fluoride complexes