Two new cadmium(II) and zinc(II) coordination polymers, {[Cd(btre)0.5- (mip)(H2O)2]·H2O}n (1) and [Zn(btre)(mip)]n (2), were synthesized at room temperature condition and characterized by IR spe...Two new cadmium(II) and zinc(II) coordination polymers, {[Cd(btre)0.5- (mip)(H2O)2]·H2O}n (1) and [Zn(btre)(mip)]n (2), were synthesized at room temperature condition and characterized by IR spectra, elemental analyses, single-crystal and powder X-ray diffractions (btre = 1,2-bis(1,2,4-triazol-4-yl)ethane, H2mip = 5-methyl-1,3-benzenedicarboxylic acid). Complex 1 belongs to the triclinic system, P space group, with a = 8.9830(6), b = 10.0579(6), c = 10.2479(9) , α = 98.837(6), β = 115.975(8), γ = 106.370(6)°, V = 756.30(11) 3 and Z = 2; complex 2 crystallizes in monoclinic, space group P21/c, with a = 7.0332(3), b = 14.9947(7), c = 15.9689(7) ?, β = 97.1170(10)°, V = 1671.12(13) ?3 and Z = 4. Compounds 1 and 2 based on the same N/O-donor ligands show different structures. The one-dimensional chains of 1 are further linked by hydrogen bonding and π-π interactions to yield a three-dimensional supramolecular structure. The two-dimensional (6,3) networks of 2 are further extended into a 3D framework via π-π interactions. Thermal stabilities and luminescence of 1 and 2 were investigated.展开更多
Two new 2 D → 2 D zinc(II) coordination polymers, [Zn(btre)0.5(nbdc)(H2 O)]n(1) and {[Zn(btre)0.5(Me Oip)(H2 O)2]·H2 O}n(2)(btre = 1,2-bis(1,2,4-triazol-4-yl)ethane, nbdc=3-nitro-1, 2-benzenedicarboxylate, Me Oi...Two new 2 D → 2 D zinc(II) coordination polymers, [Zn(btre)0.5(nbdc)(H2 O)]n(1) and {[Zn(btre)0.5(Me Oip)(H2 O)2]·H2 O}n(2)(btre = 1,2-bis(1,2,4-triazol-4-yl)ethane, nbdc=3-nitro-1, 2-benzenedicarboxylate, Me Oip=4-methoxybenzene-1, 3-dicarboxylate) were synthesized at room temperature condition and characterized by IR spectra, elemental analyses, single-crystal and powder X-ray diffractions. Three sets of equivalent 2 D(6, 3) networks parallel polycatenated with each other to give a 2 D → 2 D network in 1 and 2. There are strong π-π interactions and hydrogen bonding interactions between adjacent parallel polycatenated 2 D(6, 3) network in 1. Only hydrogen bonding interactions exist in 2. Thermal stabilities and luminescence of 1 and 2 were investigated.展开更多
A new Cu(Ⅱ) metal-organic coordination polymer, {[Cu2(tbip)2(bie)2]·H2O}n (1, H2tbip = 5-tert-butyl isophthalic acid, bie = 1,2-bis(imidazol-1 '-yl)ethane), was assembled under hydrothermal conditions...A new Cu(Ⅱ) metal-organic coordination polymer, {[Cu2(tbip)2(bie)2]·H2O}n (1, H2tbip = 5-tert-butyl isophthalic acid, bie = 1,2-bis(imidazol-1 '-yl)ethane), was assembled under hydrothermal conditions by the reactions of Cu(Ⅱ) acetate with H2tbip and bie. Complex 1 was characterized by elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Complex 1 crystallizes in triclinic, space group P1, with a = 9.9145(10), b = 13.2211(13), c = 15.4363(15) nm, a = 87.0250(10), β = 88.3220(10), γ = 83.8240(10)°, V= 2008.4(3) nm3, Z = 2, Dc = 1.505 Mg/m3, F(000) = 944, g = 1.125 mm^-1, S = 1.030, the final R = 0.0336 and wR = 0.0790. The results reveal that complex 1 is a two-dimensional layered structure. In addition, magnetic properties of I were also investigated.展开更多
Two new isostructure nickel(Ⅱ) coordination polymers, [Ni2(5-Me-ip)(1,2- Bie)(H2O)2]n (1) and [Ni2(5-Br-ip)(1,2-Bie)(H2O)2]n (2) (5-Me-H2ip = 5-methylisophthalic acid, 5-Br-H2ip = 5-mromoisophthali...Two new isostructure nickel(Ⅱ) coordination polymers, [Ni2(5-Me-ip)(1,2- Bie)(H2O)2]n (1) and [Ni2(5-Br-ip)(1,2-Bie)(H2O)2]n (2) (5-Me-H2ip = 5-methylisophthalic acid, 5-Br-H2ip = 5-mromoisophthalic acid, 1,2-Bie = 1,2-bis(imidazole)ethane), have been synthesized and structurally characterized by single-crystal X-ray diffraction. The result shows that complexes 1 and 2 crystallize in orthorhombic system, space group Pna21 with a = 16.3602(13), b = 10.1465(8), c = 21.8803(17)A^°, V = 3632.1(5) A^°3, Z = 4, Dc = 1.525 g/cm3, F(000) = 1728, R = 0.0292 and wR = 0.0668 for 6646 observed reflections (I 〉 2σ(I)) for complex 1 and a = 16.409(3), b = 10.1625(17), c = 21.918(4)A^°, V = 3654.9(11) A^°3, Z = 4, Dc = 1.752 g/cm^3, F(000) = 1936, R = 0.0309 and wR = 0.0600 for 6809 observed reflections (I 〉 2σ(I)) for complex 2. They both feature zigzag 2D layer structures, which are further staked along the a-axis through π…π and hydrogen interactions to form 3D supramolecular structures.展开更多
基金Supported by the Natural Science Foundation of Anhui Province(KJ2016A512)Key projects of Anhui Province University Outstanding Youth Talent Support Program(gxyqZD2016372)
文摘Two new cadmium(II) and zinc(II) coordination polymers, {[Cd(btre)0.5- (mip)(H2O)2]·H2O}n (1) and [Zn(btre)(mip)]n (2), were synthesized at room temperature condition and characterized by IR spectra, elemental analyses, single-crystal and powder X-ray diffractions (btre = 1,2-bis(1,2,4-triazol-4-yl)ethane, H2mip = 5-methyl-1,3-benzenedicarboxylic acid). Complex 1 belongs to the triclinic system, P space group, with a = 8.9830(6), b = 10.0579(6), c = 10.2479(9) , α = 98.837(6), β = 115.975(8), γ = 106.370(6)°, V = 756.30(11) 3 and Z = 2; complex 2 crystallizes in monoclinic, space group P21/c, with a = 7.0332(3), b = 14.9947(7), c = 15.9689(7) ?, β = 97.1170(10)°, V = 1671.12(13) ?3 and Z = 4. Compounds 1 and 2 based on the same N/O-donor ligands show different structures. The one-dimensional chains of 1 are further linked by hydrogen bonding and π-π interactions to yield a three-dimensional supramolecular structure. The two-dimensional (6,3) networks of 2 are further extended into a 3D framework via π-π interactions. Thermal stabilities and luminescence of 1 and 2 were investigated.
基金Supported by the National Natural Science Foundation of China(21271035)the Natural Science Foundation of Anhui Province(KJ2016A512)the Key Projects of Anhui Province University Outstanding Youth Talent Support Program(gxyqZD2016372)
文摘Two new 2 D → 2 D zinc(II) coordination polymers, [Zn(btre)0.5(nbdc)(H2 O)]n(1) and {[Zn(btre)0.5(Me Oip)(H2 O)2]·H2 O}n(2)(btre = 1,2-bis(1,2,4-triazol-4-yl)ethane, nbdc=3-nitro-1, 2-benzenedicarboxylate, Me Oip=4-methoxybenzene-1, 3-dicarboxylate) were synthesized at room temperature condition and characterized by IR spectra, elemental analyses, single-crystal and powder X-ray diffractions. Three sets of equivalent 2 D(6, 3) networks parallel polycatenated with each other to give a 2 D → 2 D network in 1 and 2. There are strong π-π interactions and hydrogen bonding interactions between adjacent parallel polycatenated 2 D(6, 3) network in 1. Only hydrogen bonding interactions exist in 2. Thermal stabilities and luminescence of 1 and 2 were investigated.
基金supported financially by Henan Province basic and frontier technology research projects of Henan Provincial Department of Science and Technology(No.142300410083)
文摘A new Cu(Ⅱ) metal-organic coordination polymer, {[Cu2(tbip)2(bie)2]·H2O}n (1, H2tbip = 5-tert-butyl isophthalic acid, bie = 1,2-bis(imidazol-1 '-yl)ethane), was assembled under hydrothermal conditions by the reactions of Cu(Ⅱ) acetate with H2tbip and bie. Complex 1 was characterized by elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Complex 1 crystallizes in triclinic, space group P1, with a = 9.9145(10), b = 13.2211(13), c = 15.4363(15) nm, a = 87.0250(10), β = 88.3220(10), γ = 83.8240(10)°, V= 2008.4(3) nm3, Z = 2, Dc = 1.505 Mg/m3, F(000) = 944, g = 1.125 mm^-1, S = 1.030, the final R = 0.0336 and wR = 0.0790. The results reveal that complex 1 is a two-dimensional layered structure. In addition, magnetic properties of I were also investigated.
基金supported by the Natural Science Foundation of Henan Province(122300410418,132200410404)
文摘Two new isostructure nickel(Ⅱ) coordination polymers, [Ni2(5-Me-ip)(1,2- Bie)(H2O)2]n (1) and [Ni2(5-Br-ip)(1,2-Bie)(H2O)2]n (2) (5-Me-H2ip = 5-methylisophthalic acid, 5-Br-H2ip = 5-mromoisophthalic acid, 1,2-Bie = 1,2-bis(imidazole)ethane), have been synthesized and structurally characterized by single-crystal X-ray diffraction. The result shows that complexes 1 and 2 crystallize in orthorhombic system, space group Pna21 with a = 16.3602(13), b = 10.1465(8), c = 21.8803(17)A^°, V = 3632.1(5) A^°3, Z = 4, Dc = 1.525 g/cm3, F(000) = 1728, R = 0.0292 and wR = 0.0668 for 6646 observed reflections (I 〉 2σ(I)) for complex 1 and a = 16.409(3), b = 10.1625(17), c = 21.918(4)A^°, V = 3654.9(11) A^°3, Z = 4, Dc = 1.752 g/cm^3, F(000) = 1936, R = 0.0309 and wR = 0.0600 for 6809 observed reflections (I 〉 2σ(I)) for complex 2. They both feature zigzag 2D layer structures, which are further staked along the a-axis through π…π and hydrogen interactions to form 3D supramolecular structures.