Two kinds of lithium methoxy oligo(oxyethylene) sulfate LiSAEO_8 and LiSAEO_(12) were synthesized. The blend complexes of the salts with P(MEO_(16)—AM) show high cationic conductivity, the transference numbers of lit...Two kinds of lithium methoxy oligo(oxyethylene) sulfate LiSAEO_8 and LiSAEO_(12) were synthesized. The blend complexes of the salts with P(MEO_(16)—AM) show high cationic conductivity, the transference numbers of lithium ion(t_+)in [P(MEO_(16)—AM)/LiSAEO_8] and [-P(MEO_(16)—AM)/LiSAEO_(12)] are 0.93 and 0.98 at 50℃, and their ambient conductivities are 1.4×10^(-5)/cm and 7.7×10^(-6)S/cm respectively.展开更多
A series of porous microspheres of linear and ethylene diacrylate (M') cross-linked copolymers of 2-vinylpyridine (V) and methyl acrylate (M) reacted with tetracarbonyldichlorodirhodium to form a series of cis-dic...A series of porous microspheres of linear and ethylene diacrylate (M') cross-linked copolymers of 2-vinylpyridine (V) and methyl acrylate (M) reacted with tetracarbonyldichlorodirhodium to form a series of cis-dicarbonylrhodium chelate complex (MVRh and MVM 'Rh). They are thermally stable yet very reactive in the carbonylation of methanol to acetic acid, and of methanol-acetic acid mixture to acetic acid and acetic anhydride with a selectivity of 100% under relatively mild and anhydrous conditions.展开更多
Understanding the relationship between structure and properties is critical to the development of solidstate luminescence materials with desired characteristics and performance optimization. In this work, we elaborate...Understanding the relationship between structure and properties is critical to the development of solidstate luminescence materials with desired characteristics and performance optimization. In this work, we elaborately designed and synthesized a pair of mononuclear iridium(Ⅲ) complexes with similar structures but different degrees of cationization. [Ir2-f][2PF_(6)] with two counterions is obtained by simple Nmethylation of the ancillary ligand of [Ir1-f][PF_(6)] which is a classic cationic iridium(Ⅲ) complex. Such a tiny modification results in tremendously different optical properties in dilute solutions and powders.[Ir1-f][PF_(6)] exhibits weak light in solution but enhanced emission in solid-state as well as poly(methyl methacrylate) matrix, indicative of its aggregation-induced emission(AIE) activity. On the sharp contrary, [Ir2-f][2PF_(6)] is an aggregation-caused quenching(ACQ) emitter showing strong emission in the isolated state but nearly nonemissive in aggregation states. Benefiting from the appealing characteristics of mechanochromic luminescence and AIE behavior, [Ir1-f][PF_(6)] has been successfully applied in reversible re-writable data recording and cell imaging. These results might provide deep insights into AIE and ACQ phenomenon of iridium(Ⅲ) complexes and facilitate the development of phosphorescent materials with promising properties.展开更多
Reaction of (C5H4Me)3Sm with AgBPh4 in THFDME provides a route to cationic organosamarium complex of . The product is characterized by elemental analysis, infrared spectra and Xray crystallography. Crystallographic ...Reaction of (C5H4Me)3Sm with AgBPh4 in THFDME provides a route to cationic organosamarium complex of . The product is characterized by elemental analysis, infrared spectra and Xray crystallography. Crystallographic data are as follows: formula C88H104B2O6Sm2, FW=158021, monoclinic, space group P21/a, a=17911(4), b=21368(4), c=20894(7) nm, =10177(2), V=7828(3) nm3, Z=4, Dc=1341 gcm-3, (Mo K)=1541 cm-1, F(000)=3256, R=0040, RW=0051. Two centroids of the cyclopentadienyl groups and three oxygen atoms around a samarium atom form a distorted trigonal bipyramid.展开更多
The title complex bis（2-acetylpyridine thiosemicarbazonato）-indium（iii） perchlo-rate hydrate has been synthesized by the reaction of 2-acetylpyridine thiosemicarbazide（L） with indium（iii） perchlorate,and its s...The title complex bis（2-acetylpyridine thiosemicarbazonato）-indium（iii） perchlo-rate hydrate has been synthesized by the reaction of 2-acetylpyridine thiosemicarbazide（L） with indium（iii） perchlorate,and its structure was characterized by elemental analysis,IR and single-crystal X-ray diffraction.The crystal of the title compound（[In（C8H9N4S）2]ClO4·H2O） belongs to monoclinic,space group P21/c with a = 12.6438（18）,b = 12.6259（18）,c = 15.116（2） nm,β = 105.800（2）°,Z = 4,V = 2321.9（6） nm3,Mr = 618.79,Dc = 1.770 g/cm3,μ = 1.359 mm-1,F（000） = 1240,R = 0.0265 and wR = 0.0675.X-ray analysis indicates that various intriguing hydrogen patterns involving both the solvent intermedia and polyatomic counterions play crucial roles in the self-assembly of functional supramolecules.展开更多
A novel hybrid compound [Co（4,4′-bipy）2（H2O）4]（4,4′- H2bipy）2[H2W12O40]5.5H2O has been synthesized from an acidified aqueous solution and characterized by elemental and thermal analyses, IR and UV spectroscopy...A novel hybrid compound [Co（4,4′-bipy）2（H2O）4]（4,4′- H2bipy）2[H2W12O40]5.5H2O has been synthesized from an acidified aqueous solution and characterized by elemental and thermal analyses, IR and UV spectroscopy, and single-crystal X-ray structure determination. Structure analysis indicates that the title compound is of monoclinic, space group C2/c, with a = 21.315（9）, b = 15.303 （7）, c = 24.139（10）/k, β = 105.170（5）°, V= 7599（6）/k3, Mr= 3706.99, Z= 4, F（000） = 6616, Dc = 3.231, μ = 18.395 mm^-1, R = 0.0652 and wR = 0.1594. X-ray crystallographic study shows that the title compound consists of one [Co（4,4′-bipy）2（H2O）4]^2＋ cation, two diprotonated 4,4′-bipyridine molecules, 5.5 water molecules of crystallization, and one metatungstate polyoxoanion [H2W12O40]^6-, which approaches an effective Td point symmetry. TG-DTA analysis indicates that the framework of the metatungstate polyoxoanion is collapsed at 587.0℃.展开更多
In order to achieve high-efficiency conversion of CO_(2) into valuable chemicals,and to exploit new applications of organobismuth compounds,cationic organobismuth complex with 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabis...In order to achieve high-efficiency conversion of CO_(2) into valuable chemicals,and to exploit new applications of organobismuth compounds,cationic organobismuth complex with 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocine framework was examined for the first time for the coupling of CO_(2) into cyclic carbonates,using terminal epoxides as substrates and tetrabutylammonium halide as co-catalyst in a solvent-free environment under mild conditions.It is shown that the catalyst exhibited high activity and selectivity for the coupling reaction of CO_(2) with a wide range of terminal epoxide.The selectivity of propylene carbonates could reach 100%,and the maximum turnover frequency was up to 10740 h^(-1) at 120℃ and 3 MPa CO_(2) pressure when tetrabutylammonium iodide was used as co-catalyst.Moreover,the catalyst is environment friendly,resistant to air and water,and can be readily reused and recycled without any loss of activity,demonstrating a potential in industrial application.展开更多
Novel environmentally friendly inorganic red pigments based on calcium bismuth oxide Ca3(Bi1-xREx)8O15(0≤x≤0.09;RE=Sc^(3+),Er^(3+),Y^(3+),Ho^(3+)and Dy^(3+)),were successfully synthesized and the color properties we...Novel environmentally friendly inorganic red pigments based on calcium bismuth oxide Ca3(Bi1-xREx)8O15(0≤x≤0.09;RE=Sc^(3+),Er^(3+),Y^(3+),Ho^(3+)and Dy^(3+)),were successfully synthesized and the color properties were characterized.The color of these pigments depended on the composition and the synthesis condition,and the most vivid red color was obtained for the Ca3(Bi0.93Y0.07)8O15 sample calcined thrice at 800℃for 2 h.The L*and a*values corresponding to brightness and red chromaticity for this pigment were 45.6 and+30.6,respectively,which were greater than those of a commercially available Fe2O3 pigment(L^(*)=38.4,a^(*)=+29.5).Since the present pigment is composed of nontoxic and safe elements,it should be an attractive alternative to the conventional Fe2O3 pigment.展开更多
A facile approach for the heterogenization of transition metal catalysts using non-covalent interactions in hollow click-based porous organic polymers （H-CPPs） is presented. A catalytically active cationic species, ...A facile approach for the heterogenization of transition metal catalysts using non-covalent interactions in hollow click-based porous organic polymers （H-CPPs） is presented. A catalytically active cationic species, [Ru（bpy）3]〉 （bpy = 2,2＇-bipyridyl）, was immobilized in H-CPPs via electrostatic interactions. The intrinsic properties of [Ru（bpy）3]〉 were well retained. The resulting Ru- containing hollow polymers exhibited excellent catalytic activity, enhanced stability, and good recyclability when used for the oxidative hydroxylation of 4-methoxyphenylboronic acid to 4-methoxyphenol under visible-light irradiation. The attractive catalytic performance mainly resulted from efficient mass transfer and the maintenance of the chemical properties of the cationic Ru complex in the H-CPPs.展开更多
文摘Two kinds of lithium methoxy oligo(oxyethylene) sulfate LiSAEO_8 and LiSAEO_(12) were synthesized. The blend complexes of the salts with P(MEO_(16)—AM) show high cationic conductivity, the transference numbers of lithium ion(t_+)in [P(MEO_(16)—AM)/LiSAEO_8] and [-P(MEO_(16)—AM)/LiSAEO_(12)] are 0.93 and 0.98 at 50℃, and their ambient conductivities are 1.4×10^(-5)/cm and 7.7×10^(-6)S/cm respectively.
基金This work was supported by a Grant from the National Natural Science Foundation of China
文摘A series of porous microspheres of linear and ethylene diacrylate (M') cross-linked copolymers of 2-vinylpyridine (V) and methyl acrylate (M) reacted with tetracarbonyldichlorodirhodium to form a series of cis-dicarbonylrhodium chelate complex (MVRh and MVM 'Rh). They are thermally stable yet very reactive in the carbonylation of methanol to acetic acid, and of methanol-acetic acid mixture to acetic acid and acetic anhydride with a selectivity of 100% under relatively mild and anhydrous conditions.
基金financial support from the National Natural Science Foundation of China(Nos.22175033 and 51902124).
文摘Understanding the relationship between structure and properties is critical to the development of solidstate luminescence materials with desired characteristics and performance optimization. In this work, we elaborately designed and synthesized a pair of mononuclear iridium(Ⅲ) complexes with similar structures but different degrees of cationization. [Ir2-f][2PF_(6)] with two counterions is obtained by simple Nmethylation of the ancillary ligand of [Ir1-f][PF_(6)] which is a classic cationic iridium(Ⅲ) complex. Such a tiny modification results in tremendously different optical properties in dilute solutions and powders.[Ir1-f][PF_(6)] exhibits weak light in solution but enhanced emission in solid-state as well as poly(methyl methacrylate) matrix, indicative of its aggregation-induced emission(AIE) activity. On the sharp contrary, [Ir2-f][2PF_(6)] is an aggregation-caused quenching(ACQ) emitter showing strong emission in the isolated state but nearly nonemissive in aggregation states. Benefiting from the appealing characteristics of mechanochromic luminescence and AIE behavior, [Ir1-f][PF_(6)] has been successfully applied in reversible re-writable data recording and cell imaging. These results might provide deep insights into AIE and ACQ phenomenon of iridium(Ⅲ) complexes and facilitate the development of phosphorescent materials with promising properties.
文摘Reaction of (C5H4Me)3Sm with AgBPh4 in THFDME provides a route to cationic organosamarium complex of . The product is characterized by elemental analysis, infrared spectra and Xray crystallography. Crystallographic data are as follows: formula C88H104B2O6Sm2, FW=158021, monoclinic, space group P21/a, a=17911(4), b=21368(4), c=20894(7) nm, =10177(2), V=7828(3) nm3, Z=4, Dc=1341 gcm-3, (Mo K)=1541 cm-1, F(000)=3256, R=0040, RW=0051. Two centroids of the cyclopentadienyl groups and three oxygen atoms around a samarium atom form a distorted trigonal bipyramid.
基金Financially supported from the Science Research Foundation of Shandong Entry-Exit InspectionQuarantine Bureau (No. SK201042)Weifang Medical University (No. KQ2007030)
文摘The title complex bis（2-acetylpyridine thiosemicarbazonato）-indium（iii） perchlo-rate hydrate has been synthesized by the reaction of 2-acetylpyridine thiosemicarbazide（L） with indium（iii） perchlorate,and its structure was characterized by elemental analysis,IR and single-crystal X-ray diffraction.The crystal of the title compound（[In（C8H9N4S）2]ClO4·H2O） belongs to monoclinic,space group P21/c with a = 12.6438（18）,b = 12.6259（18）,c = 15.116（2） nm,β = 105.800（2）°,Z = 4,V = 2321.9（6） nm3,Mr = 618.79,Dc = 1.770 g/cm3,μ = 1.359 mm-1,F（000） = 1240,R = 0.0265 and wR = 0.0675.X-ray analysis indicates that various intriguing hydrogen patterns involving both the solvent intermedia and polyatomic counterions play crucial roles in the self-assembly of functional supramolecules.
基金the Program for New Century Excellent Talent in University of Henan Provincethe Foundation of Educational Department of Henan Province+1 种基金the Natural Science Foundation of Henan Provincethe Natural Science Foundation of Henan University
文摘A novel hybrid compound [Co（4,4′-bipy）2（H2O）4]（4,4′- H2bipy）2[H2W12O40]5.5H2O has been synthesized from an acidified aqueous solution and characterized by elemental and thermal analyses, IR and UV spectroscopy, and single-crystal X-ray structure determination. Structure analysis indicates that the title compound is of monoclinic, space group C2/c, with a = 21.315（9）, b = 15.303 （7）, c = 24.139（10）/k, β = 105.170（5）°, V= 7599（6）/k3, Mr= 3706.99, Z= 4, F（000） = 6616, Dc = 3.231, μ = 18.395 mm^-1, R = 0.0652 and wR = 0.1594. X-ray crystallographic study shows that the title compound consists of one [Co（4,4′-bipy）2（H2O）4]^2＋ cation, two diprotonated 4,4′-bipyridine molecules, 5.5 water molecules of crystallization, and one metatungstate polyoxoanion [H2W12O40]^6-, which approaches an effective Td point symmetry. TG-DTA analysis indicates that the framework of the metatungstate polyoxoanion is collapsed at 587.0℃.
基金This work was supported by the National Natural Science Foundation of China(Grant No.20507005)Outstanding Young Research Award of National Natural Science Foundation of China(Grant No.E50725825).
文摘In order to achieve high-efficiency conversion of CO_(2) into valuable chemicals,and to exploit new applications of organobismuth compounds,cationic organobismuth complex with 5,6,7,12-tetrahydrodibenz[c,f][1,5]azabismocine framework was examined for the first time for the coupling of CO_(2) into cyclic carbonates,using terminal epoxides as substrates and tetrabutylammonium halide as co-catalyst in a solvent-free environment under mild conditions.It is shown that the catalyst exhibited high activity and selectivity for the coupling reaction of CO_(2) with a wide range of terminal epoxide.The selectivity of propylene carbonates could reach 100%,and the maximum turnover frequency was up to 10740 h^(-1) at 120℃ and 3 MPa CO_(2) pressure when tetrabutylammonium iodide was used as co-catalyst.Moreover,the catalyst is environment friendly,resistant to air and water,and can be readily reused and recycled without any loss of activity,demonstrating a potential in industrial application.
基金supported by the Development of Alternative Technology for Hazardous Chemical SubstancesDevelopment of Novel Environment-and Human-friendly Inorganic Pigments for Three Primary Colors(FY2010-2014)programs of the New Energy+1 种基金Industrial Technology Development Organization(NEDO)the Ministry of Economy,Trade and Industry,Japan(METI).
文摘Novel environmentally friendly inorganic red pigments based on calcium bismuth oxide Ca3(Bi1-xREx)8O15(0≤x≤0.09;RE=Sc^(3+),Er^(3+),Y^(3+),Ho^(3+)and Dy^(3+)),were successfully synthesized and the color properties were characterized.The color of these pigments depended on the composition and the synthesis condition,and the most vivid red color was obtained for the Ca3(Bi0.93Y0.07)8O15 sample calcined thrice at 800℃for 2 h.The L*and a*values corresponding to brightness and red chromaticity for this pigment were 45.6 and+30.6,respectively,which were greater than those of a commercially available Fe2O3 pigment(L^(*)=38.4,a^(*)=+29.5).Since the present pigment is composed of nontoxic and safe elements,it should be an attractive alternative to the conventional Fe2O3 pigment.
基金The authors are grateful to the financial support of the National Basic Research Program of China （Nos. 2011CBA00502 and 2014CB260410）, National Natural Science Foundation of China （Nos. 21403238, 21373050, U1305242, and 21471151） and Major Project of Fujian Province （No. 2014H0053）.
文摘A facile approach for the heterogenization of transition metal catalysts using non-covalent interactions in hollow click-based porous organic polymers （H-CPPs） is presented. A catalytically active cationic species, [Ru（bpy）3]〉 （bpy = 2,2＇-bipyridyl）, was immobilized in H-CPPs via electrostatic interactions. The intrinsic properties of [Ru（bpy）3]〉 were well retained. The resulting Ru- containing hollow polymers exhibited excellent catalytic activity, enhanced stability, and good recyclability when used for the oxidative hydroxylation of 4-methoxyphenylboronic acid to 4-methoxyphenol under visible-light irradiation. The attractive catalytic performance mainly resulted from efficient mass transfer and the maintenance of the chemical properties of the cationic Ru complex in the H-CPPs.
