A novel sensitive probe for proton based on platinum(II) terpyridyl acetylide complex by monitoring the changes both in luminescence and color is described.
A series of luminescent cyclometalated platinum(II) complexes, (C^N^N)Pt(C≡CR) [HC^N^N=4 (4 tolyl) 6 phenyl 2,2′ bipyridine; R=4 chlorophenyl (1), phenyl (2) and 4 tolyl (3)], were synthesized, and their...A series of luminescent cyclometalated platinum(II) complexes, (C^N^N)Pt(C≡CR) [HC^N^N=4 (4 tolyl) 6 phenyl 2,2′ bipyridine; R=4 chlorophenyl (1), phenyl (2) and 4 tolyl (3)], were synthesized, and their spectroscopic properties have been examined. These complexes are brightly emissive both in fluid solution and in the solid state, attributed to triplet metal to ligand charge transfer ( 3MLCT) state. The excited state energy can be tuned by ancillary acetylide ligands. The emission lifetimes in dichloro^methane solution at room temperature were up to 1 64 μs and the emission quantum yields were in the range of 0 03-0 15.展开更多
An acetylide-bridged dinuclear platinum(II) terpyridyl complex, [Pt(4'-p-tolyl-terpy)-≡-phenyl-≡-(4'-p-tolyl- terpy)Pt](ClO4)2 (1), has been successfully synthesized and its photophysical properties are repo...An acetylide-bridged dinuclear platinum(II) terpyridyl complex, [Pt(4'-p-tolyl-terpy)-≡-phenyl-≡-(4'-p-tolyl- terpy)Pt](ClO4)2 (1), has been successfully synthesized and its photophysical properties are reported.展开更多
The platinum(II) terpyridyl acetylide complex [Pt(terpy)(C≡CR)]ClO4 (terpy=2,2'∶6'2''-terpyridine, R=CH2CH2CH3) (1) was incorporated into Nafion membranes. At high loading the dry membranes exhibit i...The platinum(II) terpyridyl acetylide complex [Pt(terpy)(C≡CR)]ClO4 (terpy=2,2'∶6'2''-terpyridine, R=CH2CH2CH3) (1) was incorporated into Nafion membranes. At high loading the dry membranes exhibit intense photoluminescence with max at 707 nm from the 3MMLCT state, which was not observed in fluid solution. Upon exposure to the vapor of polar volatile organic compounds (VOC), this photoluminescence was significantly red-shifed. This process was fully reversible when the VOC-incorporated membrane was dried in air. The dramatic and reversible changes in the emission spectra made the Nafion-supported complex as an interesting sensor candi-date for polar VOC.展开更多
基金the Ministry of Science and Technology of China (Nos. G2000078104, G2000077502) and the National Natural Science Foun-dation of China and Bureau for the Basic Research of Chinese Academy of Sciences.
文摘A novel sensitive probe for proton based on platinum(II) terpyridyl acetylide complex by monitoring the changes both in luminescence and color is described.
文摘A series of luminescent cyclometalated platinum(II) complexes, (C^N^N)Pt(C≡CR) [HC^N^N=4 (4 tolyl) 6 phenyl 2,2′ bipyridine; R=4 chlorophenyl (1), phenyl (2) and 4 tolyl (3)], were synthesized, and their spectroscopic properties have been examined. These complexes are brightly emissive both in fluid solution and in the solid state, attributed to triplet metal to ligand charge transfer ( 3MLCT) state. The excited state energy can be tuned by ancillary acetylide ligands. The emission lifetimes in dichloro^methane solution at room temperature were up to 1 64 μs and the emission quantum yields were in the range of 0 03-0 15.
基金the Ministry of Science and Technology of China (Nos. G2000078104 and G2000077502) and the National Natural Science Foundation of China (Nos. 20125207 and 20272066).
文摘An acetylide-bridged dinuclear platinum(II) terpyridyl complex, [Pt(4'-p-tolyl-terpy)-≡-phenyl-≡-(4'-p-tolyl- terpy)Pt](ClO4)2 (1), has been successfully synthesized and its photophysical properties are reported.
基金Project supported by the Ministry of Science and Technology of China (Nos. G2000078104 G2000077502) and the National Natural Science Foun-dation of China and Bureau for the Basic Research of Chinese Academy of Sciences.
文摘The platinum(II) terpyridyl acetylide complex [Pt(terpy)(C≡CR)]ClO4 (terpy=2,2'∶6'2''-terpyridine, R=CH2CH2CH3) (1) was incorporated into Nafion membranes. At high loading the dry membranes exhibit intense photoluminescence with max at 707 nm from the 3MMLCT state, which was not observed in fluid solution. Upon exposure to the vapor of polar volatile organic compounds (VOC), this photoluminescence was significantly red-shifed. This process was fully reversible when the VOC-incorporated membrane was dried in air. The dramatic and reversible changes in the emission spectra made the Nafion-supported complex as an interesting sensor candi-date for polar VOC.
