Search results for "Organotin"

showing 5 items of 105 documents

Structure ofD-ribonic acid-dimethyltin(IV) in coordinating solvents: an experimental and DFT119Sn NMR study

2006

We have investigated a newly synthesized complex of D-ribonic acid with dimethyltin(IV). The structure of the complex in solution has been characterized by means of 1 H, 13 C, and 119 Sn NMR and by DFT calculations. The comparison of experimental and computational results allowed the determination of the stable conformation in solution as well as the detection of a dimerization process. Moreover, evidence is given of active coordination of the metal by the solvent.

organotin compounds; ribonic acid; carbohydrate-metal complexes; 119Sn NMR; DFT calculationsChemistryOrganic Chemistrycarbohydratestin compoundstin-119carbohydrates; tin compounds; tin-119; NMR spectroscopy; computational chemistrycomputational chemistryMetalSolventNMR spectroscopyComputational chemistryvisual_art119Sn NMR Carbohydrate-metal complexes DFT calculations Organotin compounds Ribonic acidvisual_art.visual_art_mediumOrganic chemistryPhysical and Theoretical ChemistryJournal of Physical Organic Chemistry
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Synthesis, structural characterization and antitumor activity of di- and tri-organotin(IV) complexes of D-galacturonic acid

2015

organotin(IV) complexes D-Galacturonic acid cytotoxic activitySettore CHIM/03 - Chimica Generale E InorganicaSettore BIO/10 - Biochimica
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Speciation of dimethyltin(IV) – and trimethyltin(IV) – carbocysteinate and – glutamate systems in aqueous media

2008

The formation of complex species in the dimethyltin(IV) and trimethyltin(IV)-carboxymethyl-L-cysteinate (carbocysteinate) systems in NaClaq, at different ionic strengths, and in a multicomponent Na+, K+, Ca2+, Mg2+, Cl- and SO42- medium representative of the seawater major composition, is discussed. Experimental results give evidence for the formation of the following species (L¼carbocysteinate): [(CH3)2Sn(L)]0, [(CH3)2Sn(HL)]+, [(CH3)2Sn(OH)(L)]-, [(CH3)2Sn(OH)2(L)]2- in the DMT–CCYS system, and [(CH3)3Sn(HL)]0, [(CH3)3Sn(L)]- and [(CH3)3Sn(OH)(L)]2- in the TMT-CCYS system. The ionic strength dependence of formation constants was taken into account by an extended Debye Huckel type equation…

organotin(IV) compounds; carboxymethyl-L-cysteinate; glutamateChemical Health and SafetyAqueous mediumChemistrydependence on ionic strength of formation constantHealth Toxicology and Mutagenesismedia_common.quotation_subjectInorganic chemistryComplex formationorganotin(IV) compoundGlutamate receptormixed ionic mediaIonic bondingglutamateToxicologycarboxymethyl-L-cysteinateSpeciationspeciationcomplex formationOrganic chemistrySettore CHIM/01 - Chimica Analiticamedia_commonChemical Speciation & Bioavailability
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Potential use of organotin(IV)-tripetide complexes as stopper in tumor cells growth.

2008

organotin(IV) tripeptide tumor cellsSettore CHIM/03 - Chimica Generale E Inorganica
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ORGANOTIN(IV)-PORPHINATE FOR PHOTOVOLTAIC BULK HETEROJUNCTIONS

2013

Due to the versatility and variability of their molecular structures, optical spectra, electrical properties, and supramolecular organization potential, porphyrins related compounds have been widely studied in organic solar cells [1,2]. Indeed, these applications are a natural function for these compounds, and they have been extensively investigated in a variety of formats including single molecules, macromolecular and supramolecular structures. In this work, poly(hexylthiophene) (P3HT) and organotin(IV)-[meso-tetra(4-carboxyphenyl) porphinate] have been employed for engineering planar and bulk heterojunctions by layer by layer deposition. Improving the overall efficiencies of photovoltaic …

porphyrin organotin bulk heterojunctionsSettore CHIM/02 - Chimica Fisica
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