A comparative study of the metal binding behavior of alanine based bis-thiourea isomers
نویسندگان
چکیده
Two new symmetrical bis-thiourea, 2,2'-[{(terephthaloylbis(azanediyl)bis(carbonothioyl) bis(azanediyl)}dipropanoic acid] (1A) and 3,3'-[{(terephthaloylbis(azanediyl)bis (carbonothioyl)bis(azanediyl)} dipropanoic acid] (1B) were synthesized by the reaction of terephthaloyl chloride with α- and β-alanine in good yields. Their binding properties were investigated with various metal cations using UV-Vis titration experiments. Both isomers exhibited effective binding with Ag+, Cu2+, Hg2+, Pb2+, Fe2+ and Fe3+ cations. However, in the presence of other cations, such as Na+, Ni2+, Co2+, Cd2+, Zn2+, Mn2+, Mg2+, Ca2+, Sn2+, Al3+, and anions tetrabutylammonium Cl- and H2PO4-, no interaction occurred. Both isomers displayed similar trends towards binding with metal cations.
منابع مشابه
Density functional theory study of the structural properties of cis-trans isomers of bis-(5-nitro-2H-tetrazolato-N2) tetraammine cobalt (III) perchlorate (BNCP)
In present study, the density functional theory (DFT-B3LYP) method with SVP basis set was used for optimizing and studying the electronic structural properties of cis and trans isomers of bis-(5-nitro-2H-tetrazolato-N2) tetraammine cobalt (III) perchlorate (BNCP) as powerful explosives at 298.15 K temperature and 1 atmosphere pressure. And also, Natural Bond Orbital (NBO) population analysis an...
متن کاملComparative Study on Structural, Optical, Dielectric and Thermal Properties of Pure and L-Alanine Doped Bis-Thiourea Cadmium Acetate Crystal
Structural, optical, dielectric and thermal properties of pure and L-alanine (LA) doped bis-thiourea cadmium acetate (BTCA) crystals have been studied in present investigation. Pure and L-alanine (LA) doped bis-thiourea cadmium acetate (BTCA) crystals have been grown by slow evaporation technique. The crystal system of pure and doped BTCA crystal has been determined by single crystal XRD techni...
متن کاملQuinoline Based Bis-urea Receptors for Anion Binding and Selectivity: a Comparative Study
Abstract: Anions play an important role in a wide range of chemical and biological processes. Extensive attention has been focused on the design of hosts that can recognize and sense anion species selectively. Such recognition behavior can be monitored through optical, electrochemical, and fluorescence responses. The binding of an anion with a synthetic receptor is typically labile and reversib...
متن کاملComplexation of Bis(acetylacetonate)oxovanadium(IV) with D–penicillamine at neutral medium
Neutral bidentate N-O type complexe of VO(II) has been synthesized through condensation of Dpenicillamine,(D-H2Pen), with Bis(acetylacetonate)- oxovanadium(IV),[VO(acac)2], at neutralmedium . The established schiff base(NO type) complex was characterized on the basis of IR andmass spectroscopy techniques.Besides,D-H2Pen binding behavior to[VO(acac)2] has been studiedin thermodynamic viewpoint u...
متن کاملComparative Cyanide and Thiourea Extraction of Gold Based on Characterization Studies (TECHNICAL NOTE)
This study involved preliminary laboratory test work to identify the relative leaching response to cyanidation and thiourea leaching of an oxidized low grade gold ore based on characterization studies. Huge reserves of gold deposits have been reported from different parts of Iran, especially at Neishaboor area with gold grade of approx 4 ppm. For the mineralogical composition, the nature of the...
متن کامل