The title metal-organic framework, [Cd3(L)2(cis-1,4-chdc)2(trans-1,4-chdc)] (1, L=2-(4-fluorophenyl)-1H-imidazo [4,5-f][1,10]phenanthroline, 1,4-H2chdc=1,4-cyclohexanedicarboxylic acid) has been synthesized under hydr...The title metal-organic framework, [Cd3(L)2(cis-1,4-chdc)2(trans-1,4-chdc)] (1, L=2-(4-fluorophenyl)-1H-imidazo [4,5-f][1,10]phenanthroline, 1,4-H2chdc=1,4-cyclohexanedicarboxylic acid) has been synthesized under hydrothermal condition and characterized by elemental analysis, IR and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a=0.851 71(17) nm, b=1.199 9(2) nm, c=1.521 4(3) nm, α=68.13(3)°, β=79.48(3)°, γ=82.32(3)°, V=1.415 0(5) nm3, Z=1, C62H52Cd3F2N8O12, Mr=1 476.32, Dc=1.732 g·cm-3, F(000)=738, μ(Mo Kα)=1.197 mm-1, R=0.067 6 and wR=0.135 4. The cis-1,4-chdc2- ligands bridge the Cd(Ⅱ) cations to form a trinuclear Cd(Ⅱ) based double chain along the a axis. Further, the trans-chdc2- ligands link the adjacent double chains to yield an interesting two-dimensional network. The L ligands are attached on both sides of the layers.展开更多
Experimental data on density and viscosity at 303.15K and 323.15K are presented for the binary mixtures of p-xylene with cyclohexane, n-heptane, n-octane, sulfolane, N-methyl-2-pyrrolidone and acetic acid.From these d...Experimental data on density and viscosity at 303.15K and 323.15K are presented for the binary mixtures of p-xylene with cyclohexane, n-heptane, n-octane, sulfolane, N-methyl-2-pyrrolidone and acetic acid.From these data, the excess molar volume and deviations in viscosity have been calculated. The computed quantities have been fitted to the Redlich-Kister Equation to derive coefficients and estimate the standard error values. Results are discussed in terms of intermolecular interactions.展开更多
文摘The title metal-organic framework, [Cd3(L)2(cis-1,4-chdc)2(trans-1,4-chdc)] (1, L=2-(4-fluorophenyl)-1H-imidazo [4,5-f][1,10]phenanthroline, 1,4-H2chdc=1,4-cyclohexanedicarboxylic acid) has been synthesized under hydrothermal condition and characterized by elemental analysis, IR and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a=0.851 71(17) nm, b=1.199 9(2) nm, c=1.521 4(3) nm, α=68.13(3)°, β=79.48(3)°, γ=82.32(3)°, V=1.415 0(5) nm3, Z=1, C62H52Cd3F2N8O12, Mr=1 476.32, Dc=1.732 g·cm-3, F(000)=738, μ(Mo Kα)=1.197 mm-1, R=0.067 6 and wR=0.135 4. The cis-1,4-chdc2- ligands bridge the Cd(Ⅱ) cations to form a trinuclear Cd(Ⅱ) based double chain along the a axis. Further, the trans-chdc2- ligands link the adjacent double chains to yield an interesting two-dimensional network. The L ligands are attached on both sides of the layers.
文摘Experimental data on density and viscosity at 303.15K and 323.15K are presented for the binary mixtures of p-xylene with cyclohexane, n-heptane, n-octane, sulfolane, N-methyl-2-pyrrolidone and acetic acid.From these data, the excess molar volume and deviations in viscosity have been calculated. The computed quantities have been fitted to the Redlich-Kister Equation to derive coefficients and estimate the standard error values. Results are discussed in terms of intermolecular interactions.
