A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its plati...A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its platinum complex were investigated. A characteristic metal-ligand charge transfer absorption peak at 439 nm in the UV spectrum and a strong emission peak at 625 nm in the photoluminescence spectrum were observed for this complex in dichloromethane. Cyclic voltammtry (CV) analysis shows that the EHOMO (energy level of the highest occupied molecular orbital) and ELUMO (energy level of the lowest unoccupied molecular orbital) of the platinum complex are about 、5.69 and 、3.25 eV, respectively, indicating that the oxadiazole-based platinum complex has a potential application in electrophosphorescent devices used as a red-emitting material.展开更多
The chemistry of the thiacrowns,especially,of the polymer-supported thiacrowns,has not been developed to the extend of the crowns or azacrowns.Very few functionalized thiacrown compunds have been prepared.No paper con...The chemistry of the thiacrowns,especially,of the polymer-supported thiacrowns,has not been developed to the extend of the crowns or azacrowns.Very few functionalized thiacrown compunds have been prepared.No paper concerning the polymer-supported thiacrowns platinum complexes and their catalytic behavior has been published yet.In this paper,the synthesis of fumed silica-supported polyundecyloxymethyl-1,4-dithia-7,10,13-trioxa cyclopentadecane siloxane and silica-supported poly-undecyloxymethyl-1,4-dithia-7,10,13,16-tetraoxacyclooctadecane siloxane,as well as their platinum complexes,and the catalytic activity of the complexes for the hydrosilylation of olefins with triethoxysilane are reported.展开更多
基金Project(50473046) supported by the National Natural Science Foundation of ChinaProject(204097) supported by the Science Foundation of the Ministry of Education of China+1 种基金Project(04JJ1002) supported by the Outstanding Youth Foundation of Hunan Province,ChinaProject(06JJ2008) supported by the Natural Science Foundation of Hunan Province,China
文摘A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its platinum complex were investigated. A characteristic metal-ligand charge transfer absorption peak at 439 nm in the UV spectrum and a strong emission peak at 625 nm in the photoluminescence spectrum were observed for this complex in dichloromethane. Cyclic voltammtry (CV) analysis shows that the EHOMO (energy level of the highest occupied molecular orbital) and ELUMO (energy level of the lowest unoccupied molecular orbital) of the platinum complex are about 、5.69 and 、3.25 eV, respectively, indicating that the oxadiazole-based platinum complex has a potential application in electrophosphorescent devices used as a red-emitting material.
文摘The chemistry of the thiacrowns,especially,of the polymer-supported thiacrowns,has not been developed to the extend of the crowns or azacrowns.Very few functionalized thiacrown compunds have been prepared.No paper concerning the polymer-supported thiacrowns platinum complexes and their catalytic behavior has been published yet.In this paper,the synthesis of fumed silica-supported polyundecyloxymethyl-1,4-dithia-7,10,13-trioxa cyclopentadecane siloxane and silica-supported poly-undecyloxymethyl-1,4-dithia-7,10,13,16-tetraoxacyclooctadecane siloxane,as well as their platinum complexes,and the catalytic activity of the complexes for the hydrosilylation of olefins with triethoxysilane are reported.
