A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized b...A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized by using NMR spectrum and X-ray single-crystal diffraction. Unit cell parameters： space group P21/c, Z=4, a=8.7494（15）, b=27.518（5）, c=12.511（2）,β=109.323（16） , Z=4, V=2842.7（9）β3 , Dc=1.380 g/cm3 , F（000）=1224 and Mr=590.46. All the atoms are in the general positions.展开更多
The reaction of 2,4,6-tris（2-pyridyl）-1,3,5-triazine （tptz） and K2PdCl4 in THF/H2O （10：1） results in the hydrolysis of tptz to bis（2-pyridylcarbonyl）amide anion （bpca）, and affords complex Pd（bpca）Cl 1, w...The reaction of 2,4,6-tris（2-pyridyl）-1,3,5-triazine （tptz） and K2PdCl4 in THF/H2O （10：1） results in the hydrolysis of tptz to bis（2-pyridylcarbonyl）amide anion （bpca）, and affords complex Pd（bpca）Cl 1, which is the first example of Pd（Ⅱ）-promoted hydrolysis of ligands. Crystal data for 1： orthorhombic, space group Pbcn, a = 12.0136（17）, b = 14.180（2）, c = 6.9747（11）A, V= 1188.2（3） A3, Z = 4, Mr = 368.06, Dc = 2.058 g/cm3, F（000） = 720,μ = 1.786 mm^-1, λ（MoKα） = 0.71073 A, T= 293（2） K, 2θmax = 54.9°, GOOF = 1.085, the final R= 0.0647 and wR = 0.1051 for 1234 observed reflections with I 〉 2σ（I） （refinement on F2）. Complex 1 is connected through hydrogen bonding to give a 2D network. And weak Pd...Pd interactions are also found between adjacent molecules with the distance of 3.6074（5） A, so the complex is further extended into a 3D supramolecular structure. Thermal gravity analysis （TGA） shows that 1 exhibits high thermal stability below 310℃. X-ray powder diffraction （XRD） and UV/Vis spectrum of 1 are also discussed.展开更多
A new s-triazine derivative modified graphene composite, in which 2,4,6-tri（2,4-dihydroxyphenyl）-1,3,5- triazine （TDTA） was attached onto reduced graphene oxide （rGO） via the noncovalent functionalization approa...A new s-triazine derivative modified graphene composite, in which 2,4,6-tri（2,4-dihydroxyphenyl）-1,3,5- triazine （TDTA） was attached onto reduced graphene oxide （rGO） via the noncovalent functionalization approach, named TDTA/rGO, was reported. And the TDTA was synthesized via a Friedel-Crafts reaction. FTIR and NMR spectroscopic characterizations were carried out to confirm the synthesis of TDTA. UV-Vis, XPS and TEM revealed that TDTA molecules were successfully loaded onto graphene sheets by π-π stacking, and the composite is found to improve greatly the dispersity ofrGO in DMF and to be a good UV-absorber.展开更多
By employing an electron-rich tricarboxytriphenyl amine as donor ligand and electron-deficient 2,4,6-tris(pyridin-4-yl)-1,3,5-triazine as acceptor ligand to assemble with Zn2+ions,three new coordination polymers were ...By employing an electron-rich tricarboxytriphenyl amine as donor ligand and electron-deficient 2,4,6-tris(pyridin-4-yl)-1,3,5-triazine as acceptor ligand to assemble with Zn2+ions,three new coordination polymers were successfully synthesized and characterized systematically.Three compounds with different structures were obtained by regulating the reaction solvent,and the effect of the reaction solvent on the synthesis of crystals was explored.Furthermore,the photophysical properties of the compounds were investigated.展开更多
文摘A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized by using NMR spectrum and X-ray single-crystal diffraction. Unit cell parameters： space group P21/c, Z=4, a=8.7494（15）, b=27.518（5）, c=12.511（2）,β=109.323（16） , Z=4, V=2842.7（9）β3 , Dc=1.380 g/cm3 , F（000）=1224 and Mr=590.46. All the atoms are in the general positions.
基金supported by 973 Program (2006CB932900)the National Natural Science Foundation of China (20571074)
文摘The reaction of 2,4,6-tris（2-pyridyl）-1,3,5-triazine （tptz） and K2PdCl4 in THF/H2O （10：1） results in the hydrolysis of tptz to bis（2-pyridylcarbonyl）amide anion （bpca）, and affords complex Pd（bpca）Cl 1, which is the first example of Pd（Ⅱ）-promoted hydrolysis of ligands. Crystal data for 1： orthorhombic, space group Pbcn, a = 12.0136（17）, b = 14.180（2）, c = 6.9747（11）A, V= 1188.2（3） A3, Z = 4, Mr = 368.06, Dc = 2.058 g/cm3, F（000） = 720,μ = 1.786 mm^-1, λ（MoKα） = 0.71073 A, T= 293（2） K, 2θmax = 54.9°, GOOF = 1.085, the final R= 0.0647 and wR = 0.1051 for 1234 observed reflections with I 〉 2σ（I） （refinement on F2）. Complex 1 is connected through hydrogen bonding to give a 2D network. And weak Pd...Pd interactions are also found between adjacent molecules with the distance of 3.6074（5） A, so the complex is further extended into a 3D supramolecular structure. Thermal gravity analysis （TGA） shows that 1 exhibits high thermal stability below 310℃. X-ray powder diffraction （XRD） and UV/Vis spectrum of 1 are also discussed.
文摘A new s-triazine derivative modified graphene composite, in which 2,4,6-tri（2,4-dihydroxyphenyl）-1,3,5- triazine （TDTA） was attached onto reduced graphene oxide （rGO） via the noncovalent functionalization approach, named TDTA/rGO, was reported. And the TDTA was synthesized via a Friedel-Crafts reaction. FTIR and NMR spectroscopic characterizations were carried out to confirm the synthesis of TDTA. UV-Vis, XPS and TEM revealed that TDTA molecules were successfully loaded onto graphene sheets by π-π stacking, and the composite is found to improve greatly the dispersity ofrGO in DMF and to be a good UV-absorber.
基金Supported by the National Natural Science Foundation of China(Nos.21531005,91856124,21671112,and 21875115).
文摘By employing an electron-rich tricarboxytriphenyl amine as donor ligand and electron-deficient 2,4,6-tris(pyridin-4-yl)-1,3,5-triazine as acceptor ligand to assemble with Zn2+ions,three new coordination polymers were successfully synthesized and characterized systematically.Three compounds with different structures were obtained by regulating the reaction solvent,and the effect of the reaction solvent on the synthesis of crystals was explored.Furthermore,the photophysical properties of the compounds were investigated.
