Styrene(St)-maleic anhydride(MA) copolymer(SMA) with high content of maleic anhydride is synthesized by using azobisisobutyronitrile(AIBN) as initiator,using solution-precipitation,and the gradual warming polymerizati...Styrene(St)-maleic anhydride(MA) copolymer(SMA) with high content of maleic anhydride is synthesized by using azobisisobutyronitrile(AIBN) as initiator,using solution-precipitation,and the gradual warming polymerization.The effects of the mole ratio of styrene to maleic anhydride,reaction temperature and the initiator amount on the polymerization is studied.The determination of copolymer composition is also studied for a series of different content of maleic anhydride copolymer by using thermogravimetry to determine their composition.The research show that determination process of thermogravimetry is simple,rapid and accurate.展开更多
Azide-containing coordination polymers have received considerable attention for the construction of new molecule-based magnets.A three dimensional heteronuclear Mn-Na compound [MnNa(N3)4(C5H5N)4] was obtained by react...Azide-containing coordination polymers have received considerable attention for the construction of new molecule-based magnets.A three dimensional heteronuclear Mn-Na compound [MnNa(N3)4(C5H5N)4] was obtained by reaction of [Mn3O(O2CCH3)6(py)3]ClO4 and NaN3 in pyridine solvents.The title compound crystallizes in monoclinic space group C2/c,a=1.536 6(2),b=1.045 3(2),c=1.576 3(2) nm,β=90.309(3)°,V=2.531 8(6) nm3,Z=4.In the structure,each Mn3+ and Na+ ion coordinated with four N atoms from four N3-and two N atoms from two pyridine molecules.Each pair of Mn3+ and Na+ ion are linked by N3-bridges into a 3D polymer with PtS topology.CCDC:706250.展开更多
A novel coordination polymer, [Cd(py)(SSZ)2]n, was synthesized under hydrothermal conditions and characterized by elemental analysis, IR spectra and X-ray single crystal diffraction. CCDC: 295625.
Complex [Mn2(C6H11CO2)3(4,4'-bipy)2(H2O)2]ClO4(C6H11CO2H=cyclohexanecarboxylic acid) was synthesized by reaction of Mn(ClO4)2.6H2O,C6H11CO2Na and 4,4'-bipy in methanol.The title complex crystallizes in triclin...Complex [Mn2(C6H11CO2)3(4,4'-bipy)2(H2O)2]ClO4(C6H11CO2H=cyclohexanecarboxylic acid) was synthesized by reaction of Mn(ClO4)2.6H2O,C6H11CO2Na and 4,4'-bipy in methanol.The title complex crystallizes in triclinic space group P1,with a=1.008 8(2) nm,b=1.086 3(1) nm,c=1.164 9(3) nm,α=63.016(3)°,β=81.998(4)°,γ=88.604(1)°,V= 1.125 4(4) nm3,Z=1.There are two types of Mn atoms in the structure with each in octahedral geometry.Mn1 and Mn2 are bridged by cyclohexanecarboxylate ligands into a chain and the chains are further linked together by 4,4'-bipy into a 2D plane.CCDC:692247.展开更多
文摘Styrene(St)-maleic anhydride(MA) copolymer(SMA) with high content of maleic anhydride is synthesized by using azobisisobutyronitrile(AIBN) as initiator,using solution-precipitation,and the gradual warming polymerization.The effects of the mole ratio of styrene to maleic anhydride,reaction temperature and the initiator amount on the polymerization is studied.The determination of copolymer composition is also studied for a series of different content of maleic anhydride copolymer by using thermogravimetry to determine their composition.The research show that determination process of thermogravimetry is simple,rapid and accurate.
文摘Azide-containing coordination polymers have received considerable attention for the construction of new molecule-based magnets.A three dimensional heteronuclear Mn-Na compound [MnNa(N3)4(C5H5N)4] was obtained by reaction of [Mn3O(O2CCH3)6(py)3]ClO4 and NaN3 in pyridine solvents.The title compound crystallizes in monoclinic space group C2/c,a=1.536 6(2),b=1.045 3(2),c=1.576 3(2) nm,β=90.309(3)°,V=2.531 8(6) nm3,Z=4.In the structure,each Mn3+ and Na+ ion coordinated with four N atoms from four N3-and two N atoms from two pyridine molecules.Each pair of Mn3+ and Na+ ion are linked by N3-bridges into a 3D polymer with PtS topology.CCDC:706250.
文摘A novel coordination polymer, [Cd(py)(SSZ)2]n, was synthesized under hydrothermal conditions and characterized by elemental analysis, IR spectra and X-ray single crystal diffraction. CCDC: 295625.
文摘Complex [Mn2(C6H11CO2)3(4,4'-bipy)2(H2O)2]ClO4(C6H11CO2H=cyclohexanecarboxylic acid) was synthesized by reaction of Mn(ClO4)2.6H2O,C6H11CO2Na and 4,4'-bipy in methanol.The title complex crystallizes in triclinic space group P1,with a=1.008 8(2) nm,b=1.086 3(1) nm,c=1.164 9(3) nm,α=63.016(3)°,β=81.998(4)°,γ=88.604(1)°,V= 1.125 4(4) nm3,Z=1.There are two types of Mn atoms in the structure with each in octahedral geometry.Mn1 and Mn2 are bridged by cyclohexanecarboxylate ligands into a chain and the chains are further linked together by 4,4'-bipy into a 2D plane.CCDC:692247.
