Search results for "Tricarboxylate"
showing 9 items of 9 documents
Speciation of chitosan with low and high molecular weight carboxylates in aqueous solution
2009
Quantitative data on the speciation of chitosan (310 kDa) with low and high molecular weight carboxylates in aqueous solution are reported. The following carboxylic ligands were considered: monocarboxylate (butyrate); dicarboxylates (malonate, succinate, azelate); tricarboxylate (1,2,3-propa- netricarboxylate); tetracarboxylate (1,2,3,4-butanetetracarboxylate); polyacrylates (2.0 and 20 kDa); polymethacrylate (5.4 kDa). The investigation was performed by potentiometry at t 1/4 25 C, at low ionic strength (without addition of supporting electrolyte) and at I 1/4 0:15 mol L 1 (NaCl). For all the systems the formation of (chitosan)LHi species was found (L 1/4 carboxylic ligand; i 1/4 1 to 4 de…
Structure and stability of hexadentate complexes of ligands based on AAZTA for efficient PET labelling with gallium-68
2012
Pre-organised tricarboxylate ligands based on 6-amino-perhydro-1,4-diazepine bind (68)Ga rapidly and selectively in acetate buffer at pH 4 to 7, forming kinetically stable complexes suitable for use in PET imaging.
Synthesis, structure and magnetic properties of the one-dimensional chain compound {K[Fe(1,3,5-triazine-2,4,6-tricarboxylate)(H2O)2]·2H2O}∞
2002
The one-dimensional chain compound {[Fe(1,3,5-triazine-2,4,6-tricarboxylate)(H2O)2]}n−n was obtained from a reaction of 1,3,5-triazine-2,4,6-tricarboxylate with Fe(II) in water at room temperature. The high-spin Fe(II) centers adopt a pentagonal bipyramid geometry with unusual ligand binding modes. Magnetic measurements revealed weak magnetic interactions between paramagnetic centers; these were modeled with both axial and rhombic distortions.
CCDC 930313: Experimental Crystal Structure Determination
2013
Related Article: Aaron Breivogel, Michael Meister, Christoph Förster, Frédéric Laquai, Katja Heinze|2013|Chem.-Eur.J.|19|13745|doi:10.1002/chem.201302231
CCDC 1581116: Experimental Crystal Structure Determination
2018
Related Article: Miguel Espinosa, Gonzalo Blay, Luz Cardona, Isabel Fernández, M. Carmen Muñoz, Jose R. Pedro|2018|J.Coord.Chem.|71|864|doi:10.1080/00958972.2018.1437422
CCDC 922681: Experimental Crystal Structure Determination
2013
Related Article: Ferenc Miklós, István M. Mándity, Reijo Sillanpää, Ferenc Fülöp|2013|Tetrahedron Lett.|54|3769|doi:10.1016/j.tetlet.2013.05.009
CCDC 1430837: Experimental Crystal Structure Determination
2018
Related Article: Błażej Dziuk, Christopher G. Gianopoulos, Krzysztof Ejsmont, Bartosz Zarychta|2018|Struct.Chem.|29|703|doi:10.1007/s11224-017-1060-6
CCDC 922680: Experimental Crystal Structure Determination
2013
Related Article: Ferenc Miklós, István M. Mándity, Reijo Sillanpää, Ferenc Fülöp|2013|Tetrahedron Lett.|54|3769|doi:10.1016/j.tetlet.2013.05.009
Thermodynamic and spectroscopic study of the binding of dimethyltin(IV) by citrate at 25°C
2006
Thermodynamic (potentiometric and calorimetric) and spectroscopic ( 1 H NMR, 119 Sn Mossbauer) studies were performed in aqueous solution in order to characterize the interaction of dimethyltin(IV) cation with citrate ligand. Six species {(CH 3 ) 2 Sn(cit) - ; [(CH 3 ) 2 Sn] 2 (cit) 2 2- ; (CH 3 ) 2 Sn(cit)H 0 ; (CH 3 ) 2 Sn(cit)OH 2- ; [(CH 3 ) 2 Sn] 2 (cit)OH 0 ; [(CH 3 ) 2 Sn] 2 (cit)(OH) 2 - } were found. All the species formed in this system are quite stable and formation percentages are fairly high. For example, at pH = 7.5 and C (CH3)2Sn = C cit = 10 mmol l -1 , E% for [(CH 3 ) 2 Sn] 2 (cit)(OH) 2 - and (CH 3 ) 2 Sn(cit)OH 2- species reaches 65%. Overall thermodynamic parameters obta…