Design and synthesis of new organic functional materials with improved performance or novel properties are of great importance in the field of optoelectronics.Azulene,as a non-alternant aromatic hydrocarbon,has attrac...Design and synthesis of new organic functional materials with improved performance or novel properties are of great importance in the field of optoelectronics.Azulene,as a non-alternant aromatic hydrocarbon,has attracted rising attention in the last few years.Different from most common aromatic hydrocarbons,azulene has unique characteristics,including large dipole moment,small gap between the highest occupied molecular orbital（HOMO） and the lowest unoccupied molecular orbital（LUMO）.However,the design and synthesis of azulene-based functional materials are still facing several challenges.This review focuses on the recent development of organic functional materials employing azulene unit.The synthesis of various functionalized azulene derivatives is summarized and their applications in optoelectronics are discussed,with particular attention to the fields including nonlinear optics（NLO）,organic field-effect transistors（OFETs）,solar cells,and molecular devices.展开更多
Molecular orbital PM3 calculation was performed on the complexation of cyclobis(paraquat-p-phenylene) with a number of 1,4-disubstituted benzenes and biphenyl derivatives. A fair correlation was found between the PM3 ...Molecular orbital PM3 calculation was performed on the complexation of cyclobis(paraquat-p-phenylene) with a number of 1,4-disubstituted benzenes and biphenyl derivatives. A fair correlation was found between the PM3 calculated binding energies and the experimental ones, which enabled the PM3 calculation to predict thc experimental binding energies for a number of important complexes. A good structure-activity relationship was also found between the PM3 calculated binding energies and the substituent molar refraction R-m and Hammett constants. indicating that the van der Waals force and the electronic interactions constituted the major driving forces for the complexation of cyclobis(paraquat-p-phenylene).展开更多
Opto-electronic molecular devices could be classified into three kinds.Theelementary structures of them are presented in this paper.It is pointed out that the elemen-tary excitation theory on charge transfer system ca...Opto-electronic molecular devices could be classified into three kinds.Theelementary structures of them are presented in this paper.It is pointed out that the elemen-tary excitation theory on charge transfer system can be employed to analyze several impor-tant physical processes in opto-electronic molecular devices.Some basic principles on thedevice design are obtained.The method developed by authors has succeeded in analyzingthe conducting mechanism and switching property of Metal-TCNQ.The crystal structureof Cu-TCNQ and the explanation to the electronic switching effect of Cu-TCNQ are giv-en out first time.展开更多
基金supported by National Basic Research Program of China(973 Program,No.2012CB933102)National Natural Science Foundation of China(Nos.51525303,21233001,21190034)the Fundamental Research Funds for the Central Universities and 111 Project
文摘Design and synthesis of new organic functional materials with improved performance or novel properties are of great importance in the field of optoelectronics.Azulene,as a non-alternant aromatic hydrocarbon,has attracted rising attention in the last few years.Different from most common aromatic hydrocarbons,azulene has unique characteristics,including large dipole moment,small gap between the highest occupied molecular orbital（HOMO） and the lowest unoccupied molecular orbital（LUMO）.However,the design and synthesis of azulene-based functional materials are still facing several challenges.This review focuses on the recent development of organic functional materials employing azulene unit.The synthesis of various functionalized azulene derivatives is summarized and their applications in optoelectronics are discussed,with particular attention to the fields including nonlinear optics（NLO）,organic field-effect transistors（OFETs）,solar cells,and molecular devices.
基金the NSFC. We also thank Prof. J. F. Stoddart for providing us the crystalline structure of 14+.
文摘Molecular orbital PM3 calculation was performed on the complexation of cyclobis(paraquat-p-phenylene) with a number of 1,4-disubstituted benzenes and biphenyl derivatives. A fair correlation was found between the PM3 calculated binding energies and the experimental ones, which enabled the PM3 calculation to predict thc experimental binding energies for a number of important complexes. A good structure-activity relationship was also found between the PM3 calculated binding energies and the substituent molar refraction R-m and Hammett constants. indicating that the van der Waals force and the electronic interactions constituted the major driving forces for the complexation of cyclobis(paraquat-p-phenylene).
文摘Opto-electronic molecular devices could be classified into three kinds.Theelementary structures of them are presented in this paper.It is pointed out that the elemen-tary excitation theory on charge transfer system can be employed to analyze several impor-tant physical processes in opto-electronic molecular devices.Some basic principles on thedevice design are obtained.The method developed by authors has succeeded in analyzingthe conducting mechanism and switching property of Metal-TCNQ.The crystal structureof Cu-TCNQ and the explanation to the electronic switching effect of Cu-TCNQ are giv-en out first time.
