A new transition metal-antimony oxo-cluster based compound has been synthesized in water under room temperature.Its formula is Na_(6)[Cu_(6)MnSb_(6)(μ_(3)-OH)_(2)(OH)(μ_(4)-O)_(6)(tartrate)_(6)]-_(2)0H_(2)O(1),where...A new transition metal-antimony oxo-cluster based compound has been synthesized in water under room temperature.Its formula is Na_(6)[Cu_(6)MnSb_(6)(μ_(3)-OH)_(2)(OH)(μ_(4)-O)_(6)(tartrate)_(6)]-_(2)0H_(2)O(1),where tartrate represents rac-tartaric acid.It was characterized by elemental analysis,infrared spectrum and X-ray single-crystal diffraction.The compound crystallizes in the monoclinic system,space group P2_(1/n).Structural analyses revealed that two Sb_(3)(μ_(3)-0)(tartrate)_(3)scaffolds sandwich a Cu^(Ⅱ)_(_(6))Mn^(Ⅲ)middle layer to form the cluster.In the middle layer,all the seven metal ions lie in an almost regular hexagon,with Mn^(Ⅲ)ion in the center and six Cu^(Ⅱ)ions along the edges of the hexagon.As a 4-connected node,each cluster is interlinked to its nearest four{Cu_(6)Mn}neighbors through Na^(+),generating a 3D supramolecular framework.The temperature-dependent magnetic susceptibilities indicated dominating antiferromagnetic interactions in 1 with J_(Cu-Cu)=176.34 and J(Cu-Mn)=-14.44 cm^(-1).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
GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, s...GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, space group Pbcawith a=14.0481(8), b=9.0130(5), c=18.626(1)?, V=2358.3(2)?3, Z=4, Dx=1.771g·cm-3, μ=1.235mm-1 and F(000)=1276. The final R factor is 0.0440 for 1434 observed reflections. The X ray analysis revealed that the copper?atom iscoordinated by two picolinic ligands in the equatorial plane, while the two oxygen atoms of perchlorate occupy the axial positions of octahedron with lengthened Cu O distances, resulting in a 4+2 elongated octahedral environment. In the compound, there also exist two protonated carbamide cations for charge balance. CCDC: 195354.展开更多
基金Supported by the National Natural Science Foundation of China(No.22001064)the Natural Science Foundation of Hunan Province(No.2020JJ4155)+1 种基金the Hunan Province College Students Innovation Entrepreneurship Training Program(2020 No.3373,2021 No.3340)the Scientific Research Project of Hunan Province Department of Education(No.20B105)。
文摘A new transition metal-antimony oxo-cluster based compound has been synthesized in water under room temperature.Its formula is Na_(6)[Cu_(6)MnSb_(6)(μ_(3)-OH)_(2)(OH)(μ_(4)-O)_(6)(tartrate)_(6)]-_(2)0H_(2)O(1),where tartrate represents rac-tartaric acid.It was characterized by elemental analysis,infrared spectrum and X-ray single-crystal diffraction.The compound crystallizes in the monoclinic system,space group P2_(1/n).Structural analyses revealed that two Sb_(3)(μ_(3)-0)(tartrate)_(3)scaffolds sandwich a Cu^(Ⅱ)_(_(6))Mn^(Ⅲ)middle layer to form the cluster.In the middle layer,all the seven metal ions lie in an almost regular hexagon,with Mn^(Ⅲ)ion in the center and six Cu^(Ⅱ)ions along the edges of the hexagon.As a 4-connected node,each cluster is interlinked to its nearest four{Cu_(6)Mn}neighbors through Na^(+),generating a 3D supramolecular framework.The temperature-dependent magnetic susceptibilities indicated dominating antiferromagnetic interactions in 1 with J_(Cu-Cu)=176.34 and J(Cu-Mn)=-14.44 cm^(-1).
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.
文摘GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, space group Pbcawith a=14.0481(8), b=9.0130(5), c=18.626(1)?, V=2358.3(2)?3, Z=4, Dx=1.771g·cm-3, μ=1.235mm-1 and F(000)=1276. The final R factor is 0.0440 for 1434 observed reflections. The X ray analysis revealed that the copper?atom iscoordinated by two picolinic ligands in the equatorial plane, while the two oxygen atoms of perchlorate occupy the axial positions of octahedron with lengthened Cu O distances, resulting in a 4+2 elongated octahedral environment. In the compound, there also exist two protonated carbamide cations for charge balance. CCDC: 195354.
基金supported by the National Natural Science Foundation of China (11964024 and 12364038)the “Grassland Talents” Project of Inner Mongolia Autonomous Region (12000-12102613)the Young Science and Technology Talents Cultivation Project of Inner Mongolia University (21200-5223708)。
基金financially supported by National Key R&D Program of China(2016YFB0700600)Soft Science Research Project of Guangdong Province(2017B030301013)Shenzhen Science and Technology Research Grant(ZDSYS201707281026184).
