Search results for "diethylenetriamine"
showing 10 items of 50 documents
CCDC 227333: Experimental Crystal Structure Determination
2004
Related Article: E.Pardo, K.Bernot, M.Julve, F.Lloret, J.Cano, R.Ruiz-Garcia, J.Pasan, C.Ruiz-Perez, X.Ottenwaelder, Y.Journaux|2004|Chem.Commun.||920|doi:10.1039/b316081e
CCDC 1442321: Experimental Crystal Structure Determination
2016
Related Article: H. Lavrenyuk, O. Mykhalichko, B. Zarychta, V. Olijnyk, B. Mykhalichko|2016|J.Coord.Chem.|69|2666|doi:10.1080/00958972.2016.1212340
CCDC 885464: Experimental Crystal Structure Determination
2013
Related Article: Sandip V. Jadhav, Rajkumar Misra, Sumeet K. Singh, Hosahudya N. Gopi|2013|Chem.-Eur.J.|19|16256|doi:10.1002/chem.201302732
CCDC 672292: Experimental Crystal Structure Determination
2010
Related Article: J.Chakraborty, A.Ray, G.Pilet, G.Chastanet, D.Luneau, R.F.Ziessel, L.J.Charbonniere, L.Carrella, E.Rentschler, M.S.El Fallah, S.Mitra|2009|Dalton Trans.||10263|doi:10.1039/b908910a
Correlation between the molecular structure and the kinetics of decomposition of azamacrocyclic copper(II) complexes
2015
The formation of copper(II) complexes with symmetrical dinucleating macrocyclic ligands containing two either monomethylated (L1) or trimethylated (L2) diethylenetriamine (Medien or Me3dien) subunits linked by pyridine spacers has been studied by potentiometry. Potentiometric studies show that L1 has larger basicity than L2 as well as higher stability of its mono- and binuclear complexes. The crystal structures of L1·6HCl (1), [Cu2(L1)Cl2](CF3SO3)2 (2), [Cu2(L1)(OH)](ClO4)3·3H2O (3) and [Cu(L1)](ClO4)2 (4) show that L1 adopts different coordination modes when bound to copper(II). Whereas in 2, each copper(II) is bound to one Medien subunit and to one pyridine group, in 3 each metal center i…
Coordination abilities of l-glutamic acid γ-monohydroxamic acid towards copper(II) in the absence and presence of some aliphatic amines
2012
Abstract Solution equilibrium studies on the Cu 2+ –(A)–(Glu-γ-ha) ternary systems ((A) = polyamine: ethylenediamine (en), diethylenetriamine (dien), N , N , N ′, N ″, N ″-pentamethyldiethylenetriamine (Me 5 dien); (Glu-γ-ha) = l -glutamic-γ-hydroxamic acid) have been performed by pH-potentiometry, UV–Vis spectrophotometry and EPR methods. The obtained results suggest the formation of the heteroligand complexes with [Cu(A)(Glu-γ-ha)] + stoichiometry in all studied systems. Our spectroscopic results indicate the tetragonal geometry for the [Cu(en)(Glu-γ-ha)] + species in which Glu-γ-ha acts as a tridentate ligand, the geometry slightly deviated from square pyramidal for [Cu(dien)(Glu-γ-ha)]…
Copper(II) Polyamine Complexes withN-Benzothiazole Sulfonamides as Counterions — Synthesis, Crystal Structures, and Properties of [Cu(dien)2](L1)2[HL…
2003
Copper(II) complexes of new N-benzothiazole sulfonamides (HL1= N-2-(benzothiazole)naphtalensulfonamide and HL2 = N-2-(6-chlorobenzothiazole)toluenesulfonamide) with ethylenediamine (en) and diethylenetriamine (dien) have been synthesized and characterised. The crystal structures of [Cu(dien)2](L1)2 (1) and [Cu(en)2(H2O)2](L2)2 (2) compounds have been determined. The metal centre adopts a “4+2” distorted octahedral environment in both complexes. Unusually, the sulfonamidate anions act as counterions. Spectroscopic properties are in good agreement with the crystal structures. The superoxide dismutase (SOD)-like activity of complex 2 has been tested. Kupfer(II)-Polyamin-Komplexe mit N-Benzothi…
CCDC 672291: Experimental Crystal Structure Determination
2010
Related Article: J.Chakraborty, A.Ray, G.Pilet, G.Chastanet, D.Luneau, R.F.Ziessel, L.J.Charbonniere, L.Carrella, E.Rentschler, M.S.El Fallah, S.Mitra|2009|Dalton Trans.||10263|doi:10.1039/b908910a
ChemInform Abstract: Review: Solution Equilibria of Ternary Complexes Formed from Copper(II), Aliphatic Amines, and Bioligands
2014
This review provides a summary of the coordination chemistry of ligands in the ternary system: copper(II)–aliphatic amine–bioligand, where amine = ethylenediamine – En, diethylenetriamine – Dien, or N, N, N′, N″, N″-pentamethyldiethylenetriamine – Me5dien, and bioligand = selected amino acid, aminohydroxamic acid, or aminophosphonic acid, in aqueous solution. We would like to show the specific interactions of copper(II) in ternary systems in the context of complex equilibria chemistry.
Boehmite Supported Pyrene Polyamine Systems as Probes for Iodide Recognition
2013
New organic–inorganic fluorescent probes made by attaching the tripodal polyamine (tris(2-aminoethyl))amine (tren), propylamine, or diethylenetriamine functionalized with pyrene as a fluorophore to an γ-aluminum oxohydroxide matrix have been prepared and studied both in solution and supported on the surface of boehmite nanoparticles. Both kinds of systems have been revealed as sensitive and selective fluorescence turn-off chemosensors for iodide in aqueous solution with an estimated detection limit that reaches 36 ppb. The recognition characteristics and photophysical properties of these molecules are essentially preserved when they are grafted to the surface of the particles. Since the nan…