One new polyoxometalate-based coordination polymer with 2,6-bis(1-imidazoly)pyridine(L)as the ligand,[Ni(L)(HL)(H2O)(H2 W12O40)0.5·H2O]n,has been synthesized under hydrothermal method and characterized by IR spec...One new polyoxometalate-based coordination polymer with 2,6-bis(1-imidazoly)pyridine(L)as the ligand,[Ni(L)(HL)(H2O)(H2 W12O40)0.5·H2O]n,has been synthesized under hydrothermal method and characterized by IR spectra,single-crystal X-ray diffraction,powder X-ray diffraction(PXRD),elemental analyses and thermogravimetric analyses(TGA).It crystallizes in orthorhombic,space group Pnma with a=20.169(7),b=23.924(8),c=15.333(5)?,V=7398(4)?3,Z=8,F(000)=6992,Dc=3.488 Mg/m3,Mr=1942.32,μ=19.177 mm-1 and the final R=0.0299,wR=0.0551.In the title compound,each Ni(Ⅱ)atom is bridged by two ligands L to form Ni2L2,which are further connected into a one-dimensional chain structure by coordination with[H2W12O40]6–polyoxoanions,and thus the ultimate 3D framework is constructed via different hydrogen bonding interactions.In addition,the cyclic voltammograms,magnetism,luminescence and photocatalytic activity towards RhB are investigated.The title compound exhibits antiferromagnetic behaviors,luminescent behaviors at solid state and photocatalytic activity to RhB.展开更多
Homopolymer（PBIP） containing 2,6-bis（1＇-methylbenzimidazolyl）pyridine（Me BIP） ligands in the side chain was synthesized by RAFT polymerization and its kinetics was studied. Polymeric complex PBIP-Nd^3＋ was pre...Homopolymer（PBIP） containing 2,6-bis（1＇-methylbenzimidazolyl）pyridine（Me BIP） ligands in the side chain was synthesized by RAFT polymerization and its kinetics was studied. Polymeric complex PBIP-Nd^3＋ was prepared by chelating PBIP with lanthanide ion Nd^3＋. The homopolymers and PBIP-Nd^3＋ complex were investigated by NMR, FTIR, GPC and TGA. The optical property of PBIP-Nd^3＋ complex was characterized by UV-Vis spectroscopy. The magnetic property of PBIP-Nd^3＋ complex was measured as a function of temperature（5 K to 300 K） and as a function of field（-3.98×10^6 A/m to 3.98×10^6 A/m）. These results indicated that PBIP-Nd^3＋ complex is paramagnetic.展开更多
基金Supported by the National Natural Science Foundation of China(U1504209,21403053)Young Backbone Teacher Project of Henan Colleges and Universities(2016GGJS-023)Foundation of Henan University(0000A40478)。
文摘One new polyoxometalate-based coordination polymer with 2,6-bis(1-imidazoly)pyridine(L)as the ligand,[Ni(L)(HL)(H2O)(H2 W12O40)0.5·H2O]n,has been synthesized under hydrothermal method and characterized by IR spectra,single-crystal X-ray diffraction,powder X-ray diffraction(PXRD),elemental analyses and thermogravimetric analyses(TGA).It crystallizes in orthorhombic,space group Pnma with a=20.169(7),b=23.924(8),c=15.333(5)?,V=7398(4)?3,Z=8,F(000)=6992,Dc=3.488 Mg/m3,Mr=1942.32,μ=19.177 mm-1 and the final R=0.0299,wR=0.0551.In the title compound,each Ni(Ⅱ)atom is bridged by two ligands L to form Ni2L2,which are further connected into a one-dimensional chain structure by coordination with[H2W12O40]6–polyoxoanions,and thus the ultimate 3D framework is constructed via different hydrogen bonding interactions.In addition,the cyclic voltammograms,magnetism,luminescence and photocatalytic activity towards RhB are investigated.The title compound exhibits antiferromagnetic behaviors,luminescent behaviors at solid state and photocatalytic activity to RhB.
基金financially supported by the National Natural Science Foundation of China(No.21174129)
文摘Homopolymer（PBIP） containing 2,6-bis（1＇-methylbenzimidazolyl）pyridine（Me BIP） ligands in the side chain was synthesized by RAFT polymerization and its kinetics was studied. Polymeric complex PBIP-Nd^3＋ was prepared by chelating PBIP with lanthanide ion Nd^3＋. The homopolymers and PBIP-Nd^3＋ complex were investigated by NMR, FTIR, GPC and TGA. The optical property of PBIP-Nd^3＋ complex was characterized by UV-Vis spectroscopy. The magnetic property of PBIP-Nd^3＋ complex was measured as a function of temperature（5 K to 300 K） and as a function of field（-3.98×10^6 A/m to 3.98×10^6 A/m）. These results indicated that PBIP-Nd^3＋ complex is paramagnetic.
