The structure of a manganese（Ⅱ） polymer,[Mn（TP）（TBZH）]2n 1（TBZH=thiabendazole,TP=terephthalic acid）,has been determined by X-ray crystallography and characterized by elemental analysis,IR spectrum and thermog...The structure of a manganese（Ⅱ） polymer,[Mn（TP）（TBZH）]2n 1（TBZH=thiabendazole,TP=terephthalic acid）,has been determined by X-ray crystallography and characterized by elemental analysis,IR spectrum and thermogravimetric analysis.It crystallizes in the orthorhombic system,space group Pbcn with a=12.7813（12）,b=10.7544（10）,c=20.1270（19）A,V=2766.6（4）A^3,Z=8,C14H9Mn0.50N3O2S,Mr=310.77,Dc=1.492g/cm^3,F（000）=1268,μ=0.674 mm^-1 and S=1.064.The 1-D chain architecture of 1 is constructed from terephthalic acid and manganese atoms.Hydrogen bonds and aryl ring π-π stacking interactions in 1 contribute to form a 3-D supramo-lecular structure.展开更多
The structure of a copper（Ⅱ） polymer, [Cu（IP）（TBZH）]2n 1 （TBZH = thiabendazole, IP = isophthalic acid）, has been determined by X-ray crystallography and characterized by elemental analysis, IR spectrum and th...The structure of a copper（Ⅱ） polymer, [Cu（IP）（TBZH）]2n 1 （TBZH = thiabendazole, IP = isophthalic acid）, has been determined by X-ray crystallography and characterized by elemental analysis, IR spectrum and thermogravimetric analysis. It crystallizes in the monoclinic system, space group P21/n with a = 11.76, b = 10.41, c = 14.08A^°, β = 104.80°, V= 1666.0（3）A^°^3, Z = 4, Mr= 428.90, Dc= 1.710 g/cm^3, F（000） = 868,μ = 1.468 mm^-1 and S = 1.001. The 2-D layered gridding architecture of 1 is constructed from isophthalic acid and binuclear copper atoms. Hydrogen bonds and aryl ring π-π stacking interactions in 1 contribute to a supramolecular structure.展开更多
This study aimed to develop controlled release formulation of Thiabendazole for reduced contaminations to soil water and agricultural produces. The idea behind this work was based on changing the ionization status of ...This study aimed to develop controlled release formulation of Thiabendazole for reduced contaminations to soil water and agricultural produces. The idea behind this work was based on changing the ionization status of Thiabendazole molecule throughout pH changes to become a cation then adsorbing it to bentonite clay surfaces. Equilibrium concentrations of Thiabendazole in the adsorption solutions were determined by HPLC. Results showed that Thiabendazole was better adsorbed in clay at the lowest pH value (pH 3). Furthermore, raising the temperature of the adsorption reaction increased the adsorbed amount of Thiabendazole. Release experiments showed that Thiabendazole is extremely slower at pH 3 than at pH 5.5 or pH 9. These promising results suggest that application of Thiabendazole clay based formulation may reduce the applied rate and that the released fraction consequently may reduce the environmental contamination. It is also advantageous to use these formulations in the acidic soil for plant disease control.展开更多
The structure, properties and application to water-soluble coatings of a new complex antimicrobial agent Ag-carboxylmethyl citosan-thiabendazole （Ag-CMCTS-TBZ） prepared from different materiel ratios were reported. ...The structure, properties and application to water-soluble coatings of a new complex antimicrobial agent Ag-carboxylmethyl citosan-thiabendazole （Ag-CMCTS-TBZ） prepared from different materiel ratios were reported. The silver ions were preferably coordinated with the free-NH2 groups and the -OH groups of secondary alcohol and carboxyl in CMCTS. TBZ preferably bonded to carboxyl group in CMCTS by electrostatic force and hydrogen bonding. Increase in silver ions content in the complex agent improved to some limited extent the antibacterial activity, but enhanced coloring and cost of the complex agent. Increase in TBZ content resulted in increase of antifungal activity, but decrease of water solubility of the complex agent. The antimicrobial MICs of the complex agent to Esherichia coil, Staphylococcus aureus, Candida albicans, Aspergillus niger, Mucor sp. were 20 -80, 15 -60, 20 - 55, 40 - 250, and 400 - 1700 mg/kg, respectively. Addition of 0.1% of this complex agent to acrylic emulsion paint made the paint without substantial change in color, luster, viscosity, odor or pH value, but with an excellent and chronically persisting broad-spectra antimicrobial activity.展开更多
基金supported by Siping Sci-tech Development Planning Project (No 2005012)
文摘The structure of a manganese（Ⅱ） polymer,[Mn（TP）（TBZH）]2n 1（TBZH=thiabendazole,TP=terephthalic acid）,has been determined by X-ray crystallography and characterized by elemental analysis,IR spectrum and thermogravimetric analysis.It crystallizes in the orthorhombic system,space group Pbcn with a=12.7813（12）,b=10.7544（10）,c=20.1270（19）A,V=2766.6（4）A^3,Z=8,C14H9Mn0.50N3O2S,Mr=310.77,Dc=1.492g/cm^3,F（000）=1268,μ=0.674 mm^-1 and S=1.064.The 1-D chain architecture of 1 is constructed from terephthalic acid and manganese atoms.Hydrogen bonds and aryl ring π-π stacking interactions in 1 contribute to form a 3-D supramo-lecular structure.
基金supported by Siping Sci-tech Development Planning Project (No. 2005012)
文摘The structure of a copper（Ⅱ） polymer, [Cu（IP）（TBZH）]2n 1 （TBZH = thiabendazole, IP = isophthalic acid）, has been determined by X-ray crystallography and characterized by elemental analysis, IR spectrum and thermogravimetric analysis. It crystallizes in the monoclinic system, space group P21/n with a = 11.76, b = 10.41, c = 14.08A^°, β = 104.80°, V= 1666.0（3）A^°^3, Z = 4, Mr= 428.90, Dc= 1.710 g/cm^3, F（000） = 868,μ = 1.468 mm^-1 and S = 1.001. The 2-D layered gridding architecture of 1 is constructed from isophthalic acid and binuclear copper atoms. Hydrogen bonds and aryl ring π-π stacking interactions in 1 contribute to a supramolecular structure.
文摘This study aimed to develop controlled release formulation of Thiabendazole for reduced contaminations to soil water and agricultural produces. The idea behind this work was based on changing the ionization status of Thiabendazole molecule throughout pH changes to become a cation then adsorbing it to bentonite clay surfaces. Equilibrium concentrations of Thiabendazole in the adsorption solutions were determined by HPLC. Results showed that Thiabendazole was better adsorbed in clay at the lowest pH value (pH 3). Furthermore, raising the temperature of the adsorption reaction increased the adsorbed amount of Thiabendazole. Release experiments showed that Thiabendazole is extremely slower at pH 3 than at pH 5.5 or pH 9. These promising results suggest that application of Thiabendazole clay based formulation may reduce the applied rate and that the released fraction consequently may reduce the environmental contamination. It is also advantageous to use these formulations in the acidic soil for plant disease control.
文摘The structure, properties and application to water-soluble coatings of a new complex antimicrobial agent Ag-carboxylmethyl citosan-thiabendazole （Ag-CMCTS-TBZ） prepared from different materiel ratios were reported. The silver ions were preferably coordinated with the free-NH2 groups and the -OH groups of secondary alcohol and carboxyl in CMCTS. TBZ preferably bonded to carboxyl group in CMCTS by electrostatic force and hydrogen bonding. Increase in silver ions content in the complex agent improved to some limited extent the antibacterial activity, but enhanced coloring and cost of the complex agent. Increase in TBZ content resulted in increase of antifungal activity, but decrease of water solubility of the complex agent. The antimicrobial MICs of the complex agent to Esherichia coil, Staphylococcus aureus, Candida albicans, Aspergillus niger, Mucor sp. were 20 -80, 15 -60, 20 - 55, 40 - 250, and 400 - 1700 mg/kg, respectively. Addition of 0.1% of this complex agent to acrylic emulsion paint made the paint without substantial change in color, luster, viscosity, odor or pH value, but with an excellent and chronically persisting broad-spectra antimicrobial activity.
