Two Mn(II)coordination supramolecules,[Mn2(C8H7O2)4(phen)2(μ-H2O)](1)and [Mn2(btec)(phen)2(H2O)6].2H2O(2)(phen=1,10-phenanthroline,H4btec=1,2,4,5-benzenetetracarboxylic acid),were synthesized by hydrothermal method.T...Two Mn(II)coordination supramolecules,[Mn2(C8H7O2)4(phen)2(μ-H2O)](1)and [Mn2(btec)(phen)2(H2O)6].2H2O(2)(phen=1,10-phenanthroline,H4btec=1,2,4,5-benzenetetracarboxylic acid),were synthesized by hydrothermal method.The crystal structures of the complexes were determined by X-ray single crystal diffraction.The result indicates that(1)and(2)are both binuclear Mn(II)complexes.The existence of hydrogen bonds makes the binuclear complexes become further connected to coordination su-pramolecules,which possess 1D and 3D infinite structures respectively.The complexes were identified by IR,UV-Vis,surface photovoltage spectrum(SPS)and field-induced surface photovoltage spectrum(FISPS).The results of SPS for the complexes indicate that they both exhibit positive surface photo-voltage response bands in the range of 300―600 nm.The SPS phase spectrum and FISPS of com-plexes indicate that they show certain p-type semiconductor characteristic.However,the intensity,position and number of the SPV response bands are different obviously.The difference of the SPV re-sponse bands is mainly attributed to the different structures of the complexes and the different coor-dination environment of Mn(Ⅱ)in the two complexes.This paper discusses the action of hydrogen bonds in the construction of the supramolecule and the change on the surface photovoltage of com-plex in different coordination environment.展开更多
基金the National Natural Science Foundation of China(Grant Nos.20571037 and 90201018)
文摘Two Mn(II)coordination supramolecules,[Mn2(C8H7O2)4(phen)2(μ-H2O)](1)and [Mn2(btec)(phen)2(H2O)6].2H2O(2)(phen=1,10-phenanthroline,H4btec=1,2,4,5-benzenetetracarboxylic acid),were synthesized by hydrothermal method.The crystal structures of the complexes were determined by X-ray single crystal diffraction.The result indicates that(1)and(2)are both binuclear Mn(II)complexes.The existence of hydrogen bonds makes the binuclear complexes become further connected to coordination su-pramolecules,which possess 1D and 3D infinite structures respectively.The complexes were identified by IR,UV-Vis,surface photovoltage spectrum(SPS)and field-induced surface photovoltage spectrum(FISPS).The results of SPS for the complexes indicate that they both exhibit positive surface photo-voltage response bands in the range of 300―600 nm.The SPS phase spectrum and FISPS of com-plexes indicate that they show certain p-type semiconductor characteristic.However,the intensity,position and number of the SPV response bands are different obviously.The difference of the SPV re-sponse bands is mainly attributed to the different structures of the complexes and the different coor-dination environment of Mn(Ⅱ)in the two complexes.This paper discusses the action of hydrogen bonds in the construction of the supramolecule and the change on the surface photovoltage of com-plex in different coordination environment.
