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.
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
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
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
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.
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.
