The blue color system of supramolecular assembly formed by di（hydroxymethyl）- di-（2-pyrrolyl）methane and tetracyanoquinodimethane （TCNQ） may be used for effective and selective detection of aniline through the v...The blue color system of supramolecular assembly formed by di（hydroxymethyl）- di-（2-pyrrolyl）methane and tetracyanoquinodimethane （TCNQ） may be used for effective and selective detection of aniline through the visual color change in CH3CN/H2O mixed solvent. The excellent properties of the system make the supramolecular assembly to be a highly selective colodmetric probe for aniline.展开更多
A new class of non-covalent charge-transfer complex for anion sensing, consisting of di(hydroxymethyl) di-(2-pyrrolyl) methane and chloranil (TCBQ) is characterized. The new colorimetric anion sensors can generate vi...A new class of non-covalent charge-transfer complex for anion sensing, consisting of di(hydroxymethyl) di-(2-pyrrolyl) methane and chloranil (TCBQ) is characterized. The new colorimetric anion sensors can generate visual color change against PO43- and HPO42- anions in EtOH/H2O (1:1 v/v) mixture solution. The dipyrromethane-quinone aggregations may be used for higher selective detection of PO43- than other inorganic anions in water solution.展开更多
Efficient and easily reproducible synthesis of sterically hindered multibrominated corroles is achieved via dipyrromethane-aldehyde condensation reaction in good yields.Boron trifluoride dietherate（BF_3-Et_2O） is fo...Efficient and easily reproducible synthesis of sterically hindered multibrominated corroles is achieved via dipyrromethane-aldehyde condensation reaction in good yields.Boron trifluoride dietherate（BF_3-Et_2O） is found to be the effective catalyst for cyclization reaction,giving corrole as the major product.展开更多
Three novel symmetrical 4.4＇-difluoro-4-bora-3a,4a-diaza-sindacene（BODIPY） derivatives were synthesized via a general and efficient protocol. These BODIPY dyads bear a diverse aryl linker bridge in the middle and t...Three novel symmetrical 4.4＇-difluoro-4-bora-3a,4a-diaza-sindacene（BODIPY） derivatives were synthesized via a general and efficient protocol. These BODIPY dyads bear a diverse aryl linker bridge in the middle and two BODIPY units at the termini. The photophysical properties of these dyads were investigated by ultravioletvisible（UV-Vis） absorption and emission spectroscopy. And their electrochemical properties were studied by cyclic voltammetry. The absorption of these dyads showed slightly blue shift and the intramolecular charge transfer（ICT） state under,vent ultrafast direct surface crossing to the ground state with high degree of rotational freedom. The results will be useful for the further functionalization of these novel symmetrical BODIPY derivatives.展开更多
A new 5,5＇-bisdiazo-dipyrromethane compound 3 has been synthesized and cha- racterized. The crystal of 3 is of orthorhombic, space group Iba2 with a = 19.1914（17）, b = 9.8396（8）, c = 13.7643（12） A, V= 2599.2（4...A new 5,5＇-bisdiazo-dipyrromethane compound 3 has been synthesized and cha- racterized. The crystal of 3 is of orthorhombic, space group Iba2 with a = 19.1914（17）, b = 9.8396（8）, c = 13.7643（12） A, V= 2599.2（4） A3, Z = 4, C29H34N602, Mr = 498.62, Dc = 1.274 g/cm3, F（000） = 1064, μ（MoKa） = 0.083 mm-1, the final R = 0.0302 and wR = 0.0786 for 6361 observed reflections with I 〉 2σ（/）, and R = 0.0320 and wR = 0.08006 for all data. It reveals that the molecules of compound 3 assemble into grid structures through a R22（7） type hydrogen bonding motif between azopyrrole and hydroxyl group. The grids interpenetrate each other with the assistance of C-H...π interaction.展开更多
A new 5,5＇-bisdiazo dipyrromethane, compound 2, has been synthesized and cha- racterized. The crystal of 2 is of monoclinic, space group P21/c with a = 16.3185（10）, b = 20.8225（13）, c = 18.5985（11） ）k, β = 11...A new 5,5＇-bisdiazo dipyrromethane, compound 2, has been synthesized and cha- racterized. The crystal of 2 is of monoclinic, space group P21/c with a = 16.3185（10）, b = 20.8225（13）, c = 18.5985（11） ）k, β = 114.5280（10）°, V = 5749.3（6） ）A^3, Z = 8, C25H26N602, Mr= 442.52, Dc= 1.022 g/cm, F（000） = 1872,/x（MoKa） = 0.068 mmI. The final R = 0.0469 and wR = 0.1143 for 10119 observed reflections with I 〉 2tr（/）, and R = 0.0677 and wR = 0.1231 for all reflections. The title compound prefers to form interlocked type dimer through quadruple N-H...N hydrogen bonds. The dimers self-assemble into a porous 3-D structure through O-H...O and C-H...N hydrogen bonds.展开更多
The reactions of 5,5＇-bis（2-acylphenyl）diazo-dipyrromethane （H2L） with CuSO4 and NiCl2 resulted in the formation of corresponding mononuclear coordination complexes 2 （CuL） and 3 （NIL）. The crystal of complex...The reactions of 5,5＇-bis（2-acylphenyl）diazo-dipyrromethane （H2L） with CuSO4 and NiCl2 resulted in the formation of corresponding mononuclear coordination complexes 2 （CuL） and 3 （NIL）. The crystal of complex 2 is of monoclinic system, space group P21 with a = 10.040（5）, b = 11.900（5）, c = 11.170（5） A, β = 93.057（8）°, V = 1332.8（2） A3, Z = 2, C29H28N602Cu, Mr = 556.11, Dc = 1.386 g/cm, F（000） = 578 and/z（MoKa） = 0.857 mm^-1. The crystal of complex 3 belongs to the monoclinic system, space group P21/n with a = 12.0445（6）, b = 17.2101（8）, c = 16.3304（6） A, β = 128.407（2）°, V = 2654.6（2） A3, Z = 4, C29H28N6O2Ni, Mr= 551.28, Dc= 1.380 g/cm, F（000） = 1152 and μ（MoKa） = 0.770 mm^-1. In both complexes, the metal ions are in square-planar geometry by coordinating to two azo N atoms and two deprotonated pyrrole N atoms. Intramolecular Cu…O=C in complex 2 and intermolecular Ni…O=C in complex 3 were found. The UV-Vis spectra and thermal stability of complexes 2 and 3 were also studied.展开更多
A new azopyrrole compound, 1, has been synthesized and characterized. The crystal of 1 is of monoclinic system, space group P21/c with a = 8.7167（9）, b = 17.5929（19）, c = 12.8096（15） ？, β = 97.565（2）o, V = 1...A new azopyrrole compound, 1, has been synthesized and characterized. The crystal of 1 is of monoclinic system, space group P21/c with a = 8.7167（9）, b = 17.5929（19）, c = 12.8096（15） ？, β = 97.565（2）o, V = 1947.3（4） ^3, Z = 4, C（20）H（26）N4O2, Mr = 354.45, Dc = 1.209 g/cm^3, F（000） = 760 and μ（Mo Kα） = 0.080 mm^-1. In the crystal, 1 binds one methanol molecule through N–H…O, O–H…O and O–H…π interactions. UV-Vis titration and 1H NMR titration studies reveal that compound 1 can selectively detect fluoride ion in the DMSO solution.展开更多
以吡咯和苯甲醛为原料合成了5-苯基-2,2′-二吡咯甲烷,利用[2+2]合成法合成了5-噻吩基-10,20-苯基-15-萘基卟啉,再利用Vilsmerier反应合成了目标化合物,目标化合物的结构经IR,MS和1 H NMR确证。考察了反应时间、物料比对目标化合物收率...以吡咯和苯甲醛为原料合成了5-苯基-2,2′-二吡咯甲烷,利用[2+2]合成法合成了5-噻吩基-10,20-苯基-15-萘基卟啉,再利用Vilsmerier反应合成了目标化合物,目标化合物的结构经IR,MS和1 H NMR确证。考察了反应时间、物料比对目标化合物收率的影响,确定了最佳反应条件:物料比n(DMF)∶n(POCl3)∶n(化合物Ⅱ)=20∶20∶1,反应温度为以1,2-二氯乙烷为溶剂条件下的回流温度,反应时间为24h。展开更多
Dipyrromethanes were obtained in moderate yields by the condensation of ketone and pyrrole in the presence of ionic liquid [Hmim]BF4 without using any strong acid and other organic solvent.
文摘The blue color system of supramolecular assembly formed by di（hydroxymethyl）- di-（2-pyrrolyl）methane and tetracyanoquinodimethane （TCNQ） may be used for effective and selective detection of aniline through the visual color change in CH3CN/H2O mixed solvent. The excellent properties of the system make the supramolecular assembly to be a highly selective colodmetric probe for aniline.
文摘A new class of non-covalent charge-transfer complex for anion sensing, consisting of di(hydroxymethyl) di-(2-pyrrolyl) methane and chloranil (TCBQ) is characterized. The new colorimetric anion sensors can generate visual color change against PO43- and HPO42- anions in EtOH/H2O (1:1 v/v) mixture solution. The dipyrromethane-quinone aggregations may be used for higher selective detection of PO43- than other inorganic anions in water solution.
基金support from National Natural Science Foundation of China(Nos.21171057 and 21371059)
文摘Efficient and easily reproducible synthesis of sterically hindered multibrominated corroles is achieved via dipyrromethane-aldehyde condensation reaction in good yields.Boron trifluoride dietherate（BF_3-Et_2O） is found to be the effective catalyst for cyclization reaction,giving corrole as the major product.
基金the National Natural Science Foundation of China
文摘Three novel symmetrical 4.4＇-difluoro-4-bora-3a,4a-diaza-sindacene（BODIPY） derivatives were synthesized via a general and efficient protocol. These BODIPY dyads bear a diverse aryl linker bridge in the middle and two BODIPY units at the termini. The photophysical properties of these dyads were investigated by ultravioletvisible（UV-Vis） absorption and emission spectroscopy. And their electrochemical properties were studied by cyclic voltammetry. The absorption of these dyads showed slightly blue shift and the intramolecular charge transfer（ICT） state under,vent ultrafast direct surface crossing to the ground state with high degree of rotational freedom. The results will be useful for the further functionalization of these novel symmetrical BODIPY derivatives.
基金supported by the National Natural Science Foundation of China(NSFCNo.20702038,21172174)Innovation Foundation of Tianjin Normal University(52XC1101)
文摘A new 5,5＇-bisdiazo-dipyrromethane compound 3 has been synthesized and cha- racterized. The crystal of 3 is of orthorhombic, space group Iba2 with a = 19.1914（17）, b = 9.8396（8）, c = 13.7643（12） A, V= 2599.2（4） A3, Z = 4, C29H34N602, Mr = 498.62, Dc = 1.274 g/cm3, F（000） = 1064, μ（MoKa） = 0.083 mm-1, the final R = 0.0302 and wR = 0.0786 for 6361 observed reflections with I 〉 2σ（/）, and R = 0.0320 and wR = 0.08006 for all data. It reveals that the molecules of compound 3 assemble into grid structures through a R22（7） type hydrogen bonding motif between azopyrrole and hydroxyl group. The grids interpenetrate each other with the assistance of C-H...π interaction.
基金Supported by the NNSFC (No.21172174, 20702038)Innovation Foundation of Tianjin Normal University (52XC1101)
文摘A new 5,5＇-bisdiazo dipyrromethane, compound 2, has been synthesized and cha- racterized. The crystal of 2 is of monoclinic, space group P21/c with a = 16.3185（10）, b = 20.8225（13）, c = 18.5985（11） ）k, β = 114.5280（10）°, V = 5749.3（6） ）A^3, Z = 8, C25H26N602, Mr= 442.52, Dc= 1.022 g/cm, F（000） = 1872,/x（MoKa） = 0.068 mmI. The final R = 0.0469 and wR = 0.1143 for 10119 observed reflections with I 〉 2tr（/）, and R = 0.0677 and wR = 0.1231 for all reflections. The title compound prefers to form interlocked type dimer through quadruple N-H...N hydrogen bonds. The dimers self-assemble into a porous 3-D structure through O-H...O and C-H...N hydrogen bonds.
基金supported by the National Natural Science Foundation of China(NSFC No.21172174)Program of Study Abroad for Young Scholar sponsored by Tianjin Municipal Education Commission
文摘The reactions of 5,5＇-bis（2-acylphenyl）diazo-dipyrromethane （H2L） with CuSO4 and NiCl2 resulted in the formation of corresponding mononuclear coordination complexes 2 （CuL） and 3 （NIL）. The crystal of complex 2 is of monoclinic system, space group P21 with a = 10.040（5）, b = 11.900（5）, c = 11.170（5） A, β = 93.057（8）°, V = 1332.8（2） A3, Z = 2, C29H28N602Cu, Mr = 556.11, Dc = 1.386 g/cm, F（000） = 578 and/z（MoKa） = 0.857 mm^-1. The crystal of complex 3 belongs to the monoclinic system, space group P21/n with a = 12.0445（6）, b = 17.2101（8）, c = 16.3304（6） A, β = 128.407（2）°, V = 2654.6（2） A3, Z = 4, C29H28N6O2Ni, Mr= 551.28, Dc= 1.380 g/cm, F（000） = 1152 and μ（MoKa） = 0.770 mm^-1. In both complexes, the metal ions are in square-planar geometry by coordinating to two azo N atoms and two deprotonated pyrrole N atoms. Intramolecular Cu…O=C in complex 2 and intermolecular Ni…O=C in complex 3 were found. The UV-Vis spectra and thermal stability of complexes 2 and 3 were also studied.
基金supported by the National Natural Science Foundation of China(No.21172174)
文摘A new azopyrrole compound, 1, has been synthesized and characterized. The crystal of 1 is of monoclinic system, space group P21/c with a = 8.7167（9）, b = 17.5929（19）, c = 12.8096（15） ？, β = 97.565（2）o, V = 1947.3（4） ^3, Z = 4, C（20）H（26）N4O2, Mr = 354.45, Dc = 1.209 g/cm^3, F（000） = 760 and μ（Mo Kα） = 0.080 mm^-1. In the crystal, 1 binds one methanol molecule through N–H…O, O–H…O and O–H…π interactions. UV-Vis titration and 1H NMR titration studies reveal that compound 1 can selectively detect fluoride ion in the DMSO solution.
文摘以吡咯和苯甲醛为原料合成了5-苯基-2,2′-二吡咯甲烷,利用[2+2]合成法合成了5-噻吩基-10,20-苯基-15-萘基卟啉,再利用Vilsmerier反应合成了目标化合物,目标化合物的结构经IR,MS和1 H NMR确证。考察了反应时间、物料比对目标化合物收率的影响,确定了最佳反应条件:物料比n(DMF)∶n(POCl3)∶n(化合物Ⅱ)=20∶20∶1,反应温度为以1,2-二氯乙烷为溶剂条件下的回流温度,反应时间为24h。
文摘Dipyrromethanes were obtained in moderate yields by the condensation of ketone and pyrrole in the presence of ionic liquid [Hmim]BF4 without using any strong acid and other organic solvent.
