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| 1 | Novel Heptamethine 3H-Indocyanines and their Spectral Properties显示文摘Novel heptamethine 3H-indocyanine dyes are synthesized and embedded into a matrix of silica gel derived from tetraethoxysilicane. The photophysical properties of these near infrared dyes in various solvents and in SiO2 sol gel were investigated. The results show that the dyes containing cyclohexenylene bridge and N-(p-carboxy)benzyl groups have better photostability and longer absorption wavelength than those containing linear heptamethine bridge and/or N-(5- carboxy)pentanyl groups. The absorption maxima of these dyes are in reverse proportion to the polarity of the solvents. The microenvironment of the dyes in SiO2 sol-gel characters medium polarity (between methanol and DMF) according to the absorption maxima. | LiQiuWANG XiaoJunPENG ErHuLU JingNanCUI XinQinGAO | 2005 | Chinese Chemical Letters2005，16，4： | 1 |
| 2 | Synthesis of Two Novel Rhenium(I) Bipyridyl Photosensitive Dyes显示文摘Two novel rhenium(I) 2, 2′-bipyridyl complexes, [(4,4′-di-COOEt-bipy) Re(CO)3 (NCCH3)PF6] and [(4,4′-di-COOEt-bipy) Re (CO)3 (NCS)], a model complex [(4,4′-di-COOEt-bipy) Re (CO)3 (pyridine)PF6], were synthesized. Their ground state electronic spectra and emission spectra were measured in acetonitrile. The MLCT absorption maximum of the complex exhibited a considerable red shift as the ligand changed from pyridine to CNCH3, or SCN. | ShiGuoSUN XiaoJunPENG MingWenFAN YongQianXU LeiSHI LiChengSU | 2004 | Chinese Chemical Letters2004，15，8： | 1 |
| 3 | Synthesis and Spectral Properties of Novel Water-soluble Near-infrared Fluorescent Indocyanines显示文摘Two fluorescent pentamethine and a squarylium indocyanines containing at least one p-carboxybenzyl group on N atoms in the heterocyclic rings were synthesized. They had good water solubility and photostability. Their maximum absorption and maximum emission were 600-700 nm in water. When it was anchored onto nanostructured TiO2 electrode, compared with in water, the squaraine showed double absorption peaks (one blue shifted and another red shifted) and absorption intensity of the red shift peak increased with the increase of the time of irradiation. The intensity of the blue one decreased simultaneously. We proposed that the presence of two electronic charge forms of squaraine anchored on the TiO2 film might be the reason. | LiQiuWANG XiaoJunPENG WeiBingZHANG FeiYIN JingNanCUI XinQinGAO | 2005 | Chinese Chemical Letters2005，16，3： | 1 |
| 4 | Synthesis and Characterization of Two Novel High Valent Dinuclear Complexes with a Triphenolate Ligand Bearing Functional Groups显示文摘Two novel high valent complexes [M2(III, III)L(μ-OAc)2]·PF6 (M=Mn, Fe; 9) were prepared, where L was the tri-anion of 2,6-bis{[(2-hydroxy-3-(morpholin-4-yl methyl)-5-tert- butyl benzyl)(pyridyl-2-methyl)amino]methyl}-4-methyl phenol which contained additional phenolic, tert-butyl and morpholin-4-yl methyl groups compared to its parent [Mn2(II, II)(bpmp) (μ-OAc)2]·ClO4 (10). These improvements decreased the difference between the new model and (Mn)4 cluster (OEC in nature). | FengSHI HongYangLI XiaoJunPENG RongZFIANG XiaoQiangCHEN JiangLiFAN JingNanCUI BjoernA^°kermark LiChengSUN | 2005 | Chinese Chemical Letters2005，16，1： | 0 |
| 5 | Studies of a Series of Novel Rhenium(Ⅰ) Bipyridyl Dyes for Solar Cells显示文摘A series of novel rhenium(I) 2,2’-bipyridyl complexes [fac-Re(4,4’-di-COOEt-bpy) -(CO)3(Xpy)PF6], where bpy is 2,2’-bipyridine, py is pyridine and X is 3-methyl, 3-hydroxy, or 3-amino, were synthesized, their photophysical and electrochemical properties were studied. The Re(II/I) oxidation potentials decreased as the X group becomes more electron donating from H to 3-methyl, 3-hydroxy, or 3-amino, which might be a very convenient ways for adjusting the electron transfer driving force. | ShiGuoSUN XiaoJunPENG YongQianXU LeiSHI YunLingGAO LiChengSUN | 2005 | Chinese Chemical Letters2005，16，5： | 0 |
| 6 | A Convenient Synthesis and Properties of Ru(bpy)_2[bpy(CO_2H)-(CO_2Et)](PF_6)_2 Photosensitive Dye显示文摘A novel Ru(Ⅱ) tris-bipyridyl complex, Ru(bpy)2[bpy(CO2H)(CO2Et)][PF6]2 is prepared in a simple and convenient process. It will be an alternative of Ru(bpy)2bpy(CO2Et)2(PF6)2 to be used in solar cells as photosensitive dyes. | ShiGuoSUN XiaoJunPENG YongQianXU LeiSHI ZhenGUO LiChengSUN | 2004 | Chinese Chemical Letters2004，15，8： | 0 |
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