A new metal-organic framework based on bbi and PHBA（bbi = 1,1＇-（1, 4-butanediyl）bis（imidazole）, PHBA = p-hydroxybenzoic acid）, namely, [Cd（bbi）（PHBA）2]n（1） has been synthesized by the conventional method....A new metal-organic framework based on bbi and PHBA（bbi = 1,1＇-（1, 4-butanediyl）bis（imidazole）, PHBA = p-hydroxybenzoic acid）, namely, [Cd（bbi）（PHBA）2]n（1） has been synthesized by the conventional method. Compound 1 displays a two-dimensional（2D） layer structure possessing the left-and right-handed helical chains and stabilized by intermolecular hydrogen-bonding to form a three-dimensional（3D） supramolecular structure. Topologically, the 2D layer belongs to well-known（4,4） network topology. The structure has been determined by single-crystal X-ray diffraction analyses, and further characterized by infrared spectra（IR）, elemental analyses and powder X-ray diffraction. In addition, the thermal behavior and luminescent properties of [Cd（bbi）（PHBA）2]n have been investigated in detail.展开更多
Serf-assembly of a ferrocenyl-bridged bipyridine ligand bpef [bpef=1, 1＇-bis（trans-2-pyrid-4＇-ylethenyl）ferrocene] with silver triflate in CH2Cl2/MeOH or mercuric diiodide in MeCN/CH2Cl2 gave the corresponding mac...Serf-assembly of a ferrocenyl-bridged bipyridine ligand bpef [bpef=1, 1＇-bis（trans-2-pyrid-4＇-ylethenyl）ferrocene] with silver triflate in CH2Cl2/MeOH or mercuric diiodide in MeCN/CH2Cl2 gave the corresponding macrocyclic coordination complexes [bpef]2[AgSO3CF3]2 （1） and [bpef]2[Hg3I6] （2） in 93% and 89% yields, respectively, whereas the pentaerythritolyl-bridged tetrapyridine ligand ptpc [ptpc=pentaerythritol tetrakis-（4-pyridinecarboxylate）] reacted with cobalt thiocyanate via self-assembly to afford the macrocyclic coordination polymer [Co（NCS）2（ptpc）], （3） in 90% yield. The X-ray diffraction analyses for 1-3 confirmed their novel macrocyclic structures and revealed that （i） the two silver atoms in complex 1 have an essentially linear geometry with N-Ag-N bond angle of 175.7° and 172.9°, （ii） the geometry of the middle mercury atom in complex 2 is square-planar, while the other two mercury atoms in the other two complexes are tetrahedral, and （iii） all the cobalt atoms in complex 3 adopt an octahedral geometry. In addition, the synthetic procedure for the known tetrapyridine ligand ptpc has been improved.展开更多
基金Supported by the Science and Technology Development Plan of Jilin Province(20150520006JH)Science and Technology Research Project of Education Department of Jilin Province(2016219)Science and Technology Development Plan of Siping City(2013055)
文摘A new metal-organic framework based on bbi and PHBA（bbi = 1,1＇-（1, 4-butanediyl）bis（imidazole）, PHBA = p-hydroxybenzoic acid）, namely, [Cd（bbi）（PHBA）2]n（1） has been synthesized by the conventional method. Compound 1 displays a two-dimensional（2D） layer structure possessing the left-and right-handed helical chains and stabilized by intermolecular hydrogen-bonding to form a three-dimensional（3D） supramolecular structure. Topologically, the 2D layer belongs to well-known（4,4） network topology. The structure has been determined by single-crystal X-ray diffraction analyses, and further characterized by infrared spectra（IR）, elemental analyses and powder X-ray diffraction. In addition, the thermal behavior and luminescent properties of [Cd（bbi）（PHBA）2]n have been investigated in detail.
基金Project supported by the National Natural Science Foundation of China （No. 20372034） and the Research Fund for the Doctoral Program of Higher Education of China.
文摘Serf-assembly of a ferrocenyl-bridged bipyridine ligand bpef [bpef=1, 1＇-bis（trans-2-pyrid-4＇-ylethenyl）ferrocene] with silver triflate in CH2Cl2/MeOH or mercuric diiodide in MeCN/CH2Cl2 gave the corresponding macrocyclic coordination complexes [bpef]2[AgSO3CF3]2 （1） and [bpef]2[Hg3I6] （2） in 93% and 89% yields, respectively, whereas the pentaerythritolyl-bridged tetrapyridine ligand ptpc [ptpc=pentaerythritol tetrakis-（4-pyridinecarboxylate）] reacted with cobalt thiocyanate via self-assembly to afford the macrocyclic coordination polymer [Co（NCS）2（ptpc）], （3） in 90% yield. The X-ray diffraction analyses for 1-3 confirmed their novel macrocyclic structures and revealed that （i） the two silver atoms in complex 1 have an essentially linear geometry with N-Ag-N bond angle of 175.7° and 172.9°, （ii） the geometry of the middle mercury atom in complex 2 is square-planar, while the other two mercury atoms in the other two complexes are tetrahedral, and （iii） all the cobalt atoms in complex 3 adopt an octahedral geometry. In addition, the synthetic procedure for the known tetrapyridine ligand ptpc has been improved.
