Synthesis and characterisation of the first organotin complex of piroxicam. An extended network system via non-hydrogen, hydrogen bonding linkages and C-H center dot center dot center dot pi contacts

dc.contributor.authorHadjikakou, S. K.en
dc.contributor.authorDemertzis, M. A.en
dc.contributor.authorMiller, J. R.en
dc.contributor.authorKovala-Demertzi, D.en
dc.date.accessioned2015-11-24T16:48:54Z
dc.date.available2015-11-24T16:48:54Z
dc.identifier.issn0300-9246-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/9389
dc.rightsDefault Licence-
dc.subjectcrystal-structureen
dc.subjecttin(iv)en
dc.subjectderivativesen
dc.subjectadductsen
dc.subjectc-13en
dc.subjectnmren
dc.titleSynthesis and characterisation of the first organotin complex of piroxicam. An extended network system via non-hydrogen, hydrogen bonding linkages and C-H center dot center dot center dot pi contactsen
heal.abstractThe organotin complex, [SnBu2(pir)](n), of the potent and widely used anti-inflammatory drug piroxicam, H(2)pir, was obtained and a crystal structure determination showed that in this complex the ligand is doubly deprotonated at the oxygen and amide nitrogen atoms. There are two similar molecules in the asymmetric unit. The isolated molecules of Sn(1) or Sn(2) are arranged in polymers in a head to tail fashion with a stacking of alternate parallel chains. Extended networks of Sn-O-Sn, C-H ... O and C-H ...pi contacts lead to aggregation and a supramolecular assembly. Real concentration protonation constants for the zwitterionic form (pyridyl group) and the protonated piroxicam (enolic group) were determined spectrophotometrically in pure aqueous solutions of constant ionic strength. It is the first example where piroxicam is proved to act as a doubly deprotonated tridentate ligand.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primary10.1039/A900227H-
heal.identifier.secondary<Go to ISI>://000079211700006-
heal.journalNameJournal of the Chemical Society-Dalton Transactionsen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate1999-
heal.publisherRoyal Society of Chemistryen
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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