The syntheses and characterization of novel biferrocene trinuclear complexes of Schiff base ligand, S methyl N (ferrocenyl 1 methyl methylidene)dithiocarbazate [hereafter abbreviated as HL (1)], are described. The X r...The syntheses and characterization of novel biferrocene trinuclear complexes of Schiff base ligand, S methyl N (ferrocenyl 1 methyl methylidene)dithiocarbazate [hereafter abbreviated as HL (1)], are described. The X ray diffraction studies have established the structures of PdL 2 (3) and CuL 2 (4). The geometry of Pd(Ⅱ) in (3) is close to a square plane and in the novel cis configuration the two ferrocene moieties are in cis configuration, while that of Cu(Ⅱ) in (4) is close to a tetrahedral configuration. The electrochemical measurements suggested that the square planar configuration of Ni(Ⅱ) and Pd(Ⅱ) moieties can effectively transmit the redox effects of the ferrocene moieties, while the tetrahedral configuration of the Cu(Ⅱ) complex can not transmit the redox effects. The degenerate four wave mixing (DFWM) measurements showed that the complexes exhibit obviously nonlinear optical (NLO) response. The magnitude of their third order NLO susceptibility can be explained by their structure and electrochemical properties.展开更多
In order to tune the intrinsic third-order nonlinear optical(NLO)properties of polyoxometalates(POMs),we adopted a strategy of substituting addenda atoms of POMs to obtain a class of polyoxomolybdovanadates,[TBA]_(3)[...In order to tune the intrinsic third-order nonlinear optical(NLO)properties of polyoxometalates(POMs),we adopted a strategy of substituting addenda atoms of POMs to obtain a class of polyoxomolybdovanadates,[TBA]_(3)[VMo_(5)O_(19)](V1Mo_(5)),[TBA]_(4)[V_(8)Mo_(2)O2_(8)]·2CH_(3)CN(V_(8)Mo_(2))and[TBA]_(4)[HV_(9)MoO_(28)]·2CH_(3)CN(V_(9)Mo_(1))(TBA=tetrabutylammonium).展开更多
We propose a rigid-flexible synergistic strategy for the syntheses of ferrocene-functionalized indiumbased metal-organic frameworks(In-MOFs)through introducing rigid carboxylic acids as auxiliary ligands,where the lar...We propose a rigid-flexible synergistic strategy for the syntheses of ferrocene-functionalized indiumbased metal-organic frameworks(In-MOFs)through introducing rigid carboxylic acids as auxiliary ligands,where the large cations are used to induce flexible 1,1’-ferrocene dicarboxylic acid(H_(2)FcDCA)in a controllable coordination mode to construct target frameworks.As an illustration of this strategy,a series of In-MOFs based on the H_(2)FcDCA ligand have been successfully synthesized.The introduction of rigid OX^(2)-ligands and large cation template leads to the syntheses of various In-MOFs.Furthermore,introducing functional cations and a ferrocene unit endows them with good third order nonlinear optical properties and redox activity.展开更多
Cross-linked polystyrene with azo-crown ether functional side chain (PSt-1, 10-dicarbonyl-3,6,9-trizaoeylcode-cane) was prepared under microwave irradiation and the structure was characterized through FT-IR and elemen...Cross-linked polystyrene with azo-crown ether functional side chain (PSt-1, 10-dicarbonyl-3,6,9-trizaoeylcode-cane) was prepared under microwave irradiation and the structure was characterized through FT-IR and element analysis. The functionalized cross-linked polystyrene (cross-link degree, 3.5%) combining with immobilized catalyst system (CuBr and ethylα-bromo-isobutyrate) can catalyze atom transfer radical polymerization of Styrene. Neat polymer products can be obtained then. Complex of La and the polymer end group (EBiB) was synthesized. The third order nonlinear optical property of the polymer-La complex was investigated and the structure was also characterized by FT-IR and XPS.展开更多
文摘The syntheses and characterization of novel biferrocene trinuclear complexes of Schiff base ligand, S methyl N (ferrocenyl 1 methyl methylidene)dithiocarbazate [hereafter abbreviated as HL (1)], are described. The X ray diffraction studies have established the structures of PdL 2 (3) and CuL 2 (4). The geometry of Pd(Ⅱ) in (3) is close to a square plane and in the novel cis configuration the two ferrocene moieties are in cis configuration, while that of Cu(Ⅱ) in (4) is close to a tetrahedral configuration. The electrochemical measurements suggested that the square planar configuration of Ni(Ⅱ) and Pd(Ⅱ) moieties can effectively transmit the redox effects of the ferrocene moieties, while the tetrahedral configuration of the Cu(Ⅱ) complex can not transmit the redox effects. The degenerate four wave mixing (DFWM) measurements showed that the complexes exhibit obviously nonlinear optical (NLO) response. The magnitude of their third order NLO susceptibility can be explained by their structure and electrochemical properties.
基金financial support of the National Natural Science Foundation of China(21101062)Science and Technology Department of Hubei Province(2014CFB600)+3 种基金Youth Chutian Scholar Fund of Hubei Province(4032401)State Key Laboratory of Structural Chemistry(20180023)Key Laboratory of Photochemical Conversion and Optoelectronic Materials,TIPC,CAS.(PCOM 202216)Hubei Provincial Key Laboratory of Green Materials for Light Industry(201710A11,201907A09).
文摘In order to tune the intrinsic third-order nonlinear optical(NLO)properties of polyoxometalates(POMs),we adopted a strategy of substituting addenda atoms of POMs to obtain a class of polyoxomolybdovanadates,[TBA]_(3)[VMo_(5)O_(19)](V1Mo_(5)),[TBA]_(4)[V_(8)Mo_(2)O2_(8)]·2CH_(3)CN(V_(8)Mo_(2))and[TBA]_(4)[HV_(9)MoO_(28)]·2CH_(3)CN(V_(9)Mo_(1))(TBA=tetrabutylammonium).
基金the financial support from NSFC(21971241 and 21871050).
文摘We propose a rigid-flexible synergistic strategy for the syntheses of ferrocene-functionalized indiumbased metal-organic frameworks(In-MOFs)through introducing rigid carboxylic acids as auxiliary ligands,where the large cations are used to induce flexible 1,1’-ferrocene dicarboxylic acid(H_(2)FcDCA)in a controllable coordination mode to construct target frameworks.As an illustration of this strategy,a series of In-MOFs based on the H_(2)FcDCA ligand have been successfully synthesized.The introduction of rigid OX^(2)-ligands and large cation template leads to the syntheses of various In-MOFs.Furthermore,introducing functional cations and a ferrocene unit endows them with good third order nonlinear optical properties and redox activity.
基金Project supported by Jiangsu Province Natural Science Foundation (BK 2002042)
文摘Cross-linked polystyrene with azo-crown ether functional side chain (PSt-1, 10-dicarbonyl-3,6,9-trizaoeylcode-cane) was prepared under microwave irradiation and the structure was characterized through FT-IR and element analysis. The functionalized cross-linked polystyrene (cross-link degree, 3.5%) combining with immobilized catalyst system (CuBr and ethylα-bromo-isobutyrate) can catalyze atom transfer radical polymerization of Styrene. Neat polymer products can be obtained then. Complex of La and the polymer end group (EBiB) was synthesized. The third order nonlinear optical property of the polymer-La complex was investigated and the structure was also characterized by FT-IR and XPS.
