The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The abso...The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?展开更多
Nine 3,3’-(arylmethylene)bis(2-hydroxynaphthalene-1,4-dione) derivatives were synthesized through the reaction between 2-hydroxy-1,4-naphthalen-1,4-dione and different aromatic alde-hydes in water applying ultrasonic...Nine 3,3’-(arylmethylene)bis(2-hydroxynaphthalene-1,4-dione) derivatives were synthesized through the reaction between 2-hydroxy-1,4-naphthalen-1,4-dione and different aromatic alde-hydes in water applying ultrasonic irradiation for 5 min at room temperature and microwave irradiation for 15 min at 70°;C. Two of the nine derivatives, compounds 3-e and 3-i, obtained from 3-bromo-hydroxybenzaldehyde and 5-methylfuran-2-carbaldehyde, respectively, are previously unpublished. The structures of all compounds were established on the basis of their spectral data and mass analysis. The attractive features of this synthesis protocol include mild conditions, high atom-economy and excellent yields with the elimination of water as the only by-product.展开更多
One novel nickel coordination polymer, {[Ni（OTP）（bib）1.5（H2O）]·2H2O}n（1, H2 OTP = 2-hydroxy-5-（3＇,5＇-terephthalic acid） pyridine, bib = 1,4-bis（1-imdazoly）benzene）, has been synthesized and characte...One novel nickel coordination polymer, {[Ni（OTP）（bib）1.5（H2O）]·2H2O}n（1, H2 OTP = 2-hydroxy-5-（3＇,5＇-terephthalic acid） pyridine, bib = 1,4-bis（1-imdazoly）benzene）, has been synthesized and characterized by elemental analysis（EA）, IR, powder X-ray diffraction（PXRD）, and thermogravimetric（TG） analyses. The crystal of 1 crystallizes in monoclinic, space group P21/n with a = 12.2860（5）, b = 13.8246（6）, c = 19.0140（8） A, β = 104.3870（1）°, V = 3128.2（2） A3, Z = 4, C32H28N7 Ni O8, Mr = 697.32, Dc = 1.481 g/cm^3, F（000） = 1444 and μ（Mo Kα） = 0.684 mm-1. The final R = 0.0704 and w R = 0.1764 for 5485 observed reflections with I 2σ（I） and R = 0.1087 and wR = 0.2010 for all data. Topology analysis reveals that complex 1 is a 3D 2-fold interpenetrated {4^4·6^6}-nov net based on the 1D [Ni（OTP）]n chain and the 2D [Ni2（bib）3]n sql sheet. And the variable-temperature magnetic susceptibility measurements exhibit weak antiferromagnetic coupling interaction.展开更多
A new 1D coordination polymer, [Pb（L）（cis-1,4-chdc）]·0.5H2O （cis-1,4-chdc = 1,4-cyclohexanedicarboxylate and L = 2-（4-fluorophenyl）-1H-imidazo[4,5-f][1,10]phenanthroline）, has been synthesized under hydro...A new 1D coordination polymer, [Pb（L）（cis-1,4-chdc）]·0.5H2O （cis-1,4-chdc = 1,4-cyclohexanedicarboxylate and L = 2-（4-fluorophenyl）-1H-imidazo[4,5-f][1,10]phenanthroline）, has been synthesized under hydrothermal conditions and characterized by elemental analysis, TG and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 9.153（5）, b = 10.338（5）, c = 13.074（5）, α = 80.956（5）, β = 89.725（5）, γ = 80.534（5）°, V = 1204.8（10）3 , Z = 1, C54H44F2N8O9Pb2 , Mr = 1401.35, Dc = 1.931 g/cm3 , F（000） = 678, μ（MoKa） = 7.055 mm-1 , R = 0.0277 and wR = 0.0559. Each cis-1,4-chdc anion coordinates with two Pb（Ⅱ） atoms in a bis-chelating coordination mode. In this way, cis-1,4-chdc anions bridged the neighboring Pb（Ⅱ） atoms to generate a 1D chain structure. The L ligands from neighboring chains are paired through the strong π-π interactions to generate a fascinating 2D supramolecular layer.展开更多
A new one-dimensional Ni（Ⅱ） coordination polymer [Ni（L）（cis-1,4- chdc）]n·1.25nH2O has been synthesized under hydrothermal conditions by using 1,4-cyclohexanedicarboxylic acid （1,4-H2chdc） and 2-（3-fluor...A new one-dimensional Ni（Ⅱ） coordination polymer [Ni（L）（cis-1,4- chdc）]n·1.25nH2O has been synthesized under hydrothermal conditions by using 1,4-cyclohexanedicarboxylic acid （1,4-H2chdc） and 2-（3-fluorophenyl）- 1H-imidazo [4,5-f] [ 1,10]phenanthroline （L）. Crystallographic data for the compound： triclinic, space group Pi with a = 8.777（2）, b = 10.662（2）, c = 13.799（3） A, a = 89.480（4）, β = 73,933（3）, γ = 81.980（4）°, V = 1228.2（5） A3, Z = 2, C27H22.50FN4NiO5.25, Mr = 568.70, Dc = 1.527 g/cm3, F（000） = 583,μ（MoKα） = 0.846 mm-1, R = 0.0634 and wR = 0.1465. Neighboring Ni（Ⅱ） atoms are linked by the cis-1,4-chdc ligands to generate a one-dimensional chain structure. The π-π interactions between the L ligands of neighboring chains led to the formation of a two-dimensional supramolecular layer. The elemental analysis, IR spectrum and TG of the compound have been studied.展开更多
文摘The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?
文摘Nine 3,3’-(arylmethylene)bis(2-hydroxynaphthalene-1,4-dione) derivatives were synthesized through the reaction between 2-hydroxy-1,4-naphthalen-1,4-dione and different aromatic alde-hydes in water applying ultrasonic irradiation for 5 min at room temperature and microwave irradiation for 15 min at 70°;C. Two of the nine derivatives, compounds 3-e and 3-i, obtained from 3-bromo-hydroxybenzaldehyde and 5-methylfuran-2-carbaldehyde, respectively, are previously unpublished. The structures of all compounds were established on the basis of their spectral data and mass analysis. The attractive features of this synthesis protocol include mild conditions, high atom-economy and excellent yields with the elimination of water as the only by-product.
基金supported by the Natural Science Foundation of Shandong Province(ZR2011BL020,ZR2012CM019)National Natural Science Foundation of China(21451001)Key Discipline and Innovation Team of Qilu Normal University
文摘One novel nickel coordination polymer, {[Ni（OTP）（bib）1.5（H2O）]·2H2O}n（1, H2 OTP = 2-hydroxy-5-（3＇,5＇-terephthalic acid） pyridine, bib = 1,4-bis（1-imdazoly）benzene）, has been synthesized and characterized by elemental analysis（EA）, IR, powder X-ray diffraction（PXRD）, and thermogravimetric（TG） analyses. The crystal of 1 crystallizes in monoclinic, space group P21/n with a = 12.2860（5）, b = 13.8246（6）, c = 19.0140（8） A, β = 104.3870（1）°, V = 3128.2（2） A3, Z = 4, C32H28N7 Ni O8, Mr = 697.32, Dc = 1.481 g/cm^3, F（000） = 1444 and μ（Mo Kα） = 0.684 mm-1. The final R = 0.0704 and w R = 0.1764 for 5485 observed reflections with I 2σ（I） and R = 0.1087 and wR = 0.2010 for all data. Topology analysis reveals that complex 1 is a 3D 2-fold interpenetrated {4^4·6^6}-nov net based on the 1D [Ni（OTP）]n chain and the 2D [Ni2（bib）3]n sql sheet. And the variable-temperature magnetic susceptibility measurements exhibit weak antiferromagnetic coupling interaction.
基金Supported by Jilin Province Science and Technology Development projects (No. 20100549)
文摘A new 1D coordination polymer, [Pb（L）（cis-1,4-chdc）]·0.5H2O （cis-1,4-chdc = 1,4-cyclohexanedicarboxylate and L = 2-（4-fluorophenyl）-1H-imidazo[4,5-f][1,10]phenanthroline）, has been synthesized under hydrothermal conditions and characterized by elemental analysis, TG and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 9.153（5）, b = 10.338（5）, c = 13.074（5）, α = 80.956（5）, β = 89.725（5）, γ = 80.534（5）°, V = 1204.8（10）3 , Z = 1, C54H44F2N8O9Pb2 , Mr = 1401.35, Dc = 1.931 g/cm3 , F（000） = 678, μ（MoKa） = 7.055 mm-1 , R = 0.0277 and wR = 0.0559. Each cis-1,4-chdc anion coordinates with two Pb（Ⅱ） atoms in a bis-chelating coordination mode. In this way, cis-1,4-chdc anions bridged the neighboring Pb（Ⅱ） atoms to generate a 1D chain structure. The L ligands from neighboring chains are paired through the strong π-π interactions to generate a fascinating 2D supramolecular layer.
基金Supported by the Institute Foundation of Siping City (No. 2009011)
文摘A new one-dimensional Ni（Ⅱ） coordination polymer [Ni（L）（cis-1,4- chdc）]n·1.25nH2O has been synthesized under hydrothermal conditions by using 1,4-cyclohexanedicarboxylic acid （1,4-H2chdc） and 2-（3-fluorophenyl）- 1H-imidazo [4,5-f] [ 1,10]phenanthroline （L）. Crystallographic data for the compound： triclinic, space group Pi with a = 8.777（2）, b = 10.662（2）, c = 13.799（3） A, a = 89.480（4）, β = 73,933（3）, γ = 81.980（4）°, V = 1228.2（5） A3, Z = 2, C27H22.50FN4NiO5.25, Mr = 568.70, Dc = 1.527 g/cm3, F（000） = 583,μ（MoKα） = 0.846 mm-1, R = 0.0634 and wR = 0.1465. Neighboring Ni（Ⅱ） atoms are linked by the cis-1,4-chdc ligands to generate a one-dimensional chain structure. The π-π interactions between the L ligands of neighboring chains led to the formation of a two-dimensional supramolecular layer. The elemental analysis, IR spectrum and TG of the compound have been studied.
