| Eleven new novel complexes have been synthesized by the hydrothermal methods ofCu（Ⅱ） and Ni（Ⅱ） with2-Pyrazinecarboxylic acid, succinic acid etc （complexes （1）–（11））. Allsingle crystals were obtained and characterized by single crystal X–ray diffraction, surfacephotovoltage spectroscopy （SPS）, IR spectra and UV–Vis spectra. Some regular results wereobtained after the crystal structures and photo-electric property were discussed and their SPSand UV-Vis were compared and analyzed. In addition, in order to better contrast and studyphoto-electric properties of the different series complexes, the related complexes （notpublished） were also characterized by thermogravimetric analysis （TG）, EPR spectra, X–raypowder diffraction （XRD）, and electrical conductivity, which were synthesized of otherstudents of our group. We investigated the relationship the complexes with SPS and theirchanges of photo-electric property of different structral complexes were compared anddiscussed, especially on the use of radation scope and photo-electric effciency. The results areas following:（1）[Cu（pzc）2]·4H2O （12）[Mn（SO4）（H2O）3]n（2）[Na2Cu（o-phta）2（H2O）2]n（13）[Mn2.5（HPO4）PO4)（H2O）2]n（3）{[Cu（suc）（H2O）]·H2O}n（14）[Mn（phen）2（H2O）2]·（C4H4O4）·4H2O（4）[Cu（PhCOO）2（PhCOOH）]2（15）[Co（suc）]n（5）[Cu（NO2PhCOO）（NO2PhCOOH）Et]2（16）[Co（suc）（Im）]n（6）[Cu（bpdc）（Imh）2（H2O）]·2H2O （17）[Co（pdc）]n（7）[Cu（2,6-pdc）（H2O）2]n（18）{[Co7（suc）4(OH]6（H2O）3]·8H2O}n（8）[Cu（ATA）2]·2H2O （19）{[Co（o-phta）（phen）（H2O）]·H2O}n（9）[Ni（2-pdc）2（H2O）2]·2H2O（10）[Ni(H2O]6]·H2btec（11）[NaNi（ATA）（H2O）]n（pzc=2-Pyrazinecarboxylic acid, bpdc=2,2’-bipyridyl-4,4’-dicarboxylic, o-phta=phthalic acid, suc=succinic acid, Imh=imidazole,2-pdc=pyridine-2-dicarboxylic acid,H2btec=1,2,4,5-benzenetetra-carboxylic acid, ATA=Ammonia triacetic acid, Et=ethanol,2,6-pdc=pyridine-2,6-dicarboxylic acid, pdc=pyridine-3,4-dicarboxylic acid）（1）. Complexes （1）-（8） are Cu（Ⅱ） complexes. Complexes （1）、（4）、（5）、（6） and （8） aremononuclear or bisnuclear structures, and futher bridged to1D,2D or3D infinite structure byhydrogen bonds. Complex （2） is a2D structure bridged by o-phta2-. Complexes （3） and （7） are1D structures bridged by suc2-and2,6-pdc2-, respectively. （2）. Complexes （9）-（11） are Ni（Ⅱ） complexes. Complexes （9） and （10） are mononuclearstructures, and futher bridged to3D infinite structure by hydrogen bonds. Complex （11） is a3D structure bridged by ATA3-.（3）. Complexes （12）-（14） are Mn（Ⅱ） complexes. Complex （12） is a2D coordinationpolymer, and hydrogen bonds link the complex to3D infinite structure. The complex （13） is a3D coordination polymer. The complex （14） is a mononuclear complex, and diverse hydrogenbonds connect the complex to3D supramolecular architechture.（4）. Complexes （15）-（19） are Co（Ⅱ） complexes. Complexes （15）-（17） are3D structure.Complex （18） is a2D structure bridged by the suc2-groups and （19） is a1D structure bridgedby the o-phta2-groups.（5）. The photo-electric property is explore by SPS. The results indicate that complexesexhibit positive surface photovoltage responses in the range of300800nm, which revealsthat the complexes possess photo-electric conversion properties.（6）. The measurement and analysis of SPS spectra indicate that the kind of metal ionsand ligand are different, the broad and intensity of response bands are different too.（7）. Compared SPS of the same metal ion complexes, it was found that when the changesof their coordination microenvironment, especially on the changes of coordination numbers,（The coordination numbers of the series complexes of Cu（Ⅱ） and Co（Ⅱ） often are4,5,6.）, theresponse bands varies greatly. The symmetry of microenvironment are lower, the lightradiation scope of SPS response are larger. |
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