ENTHALPY OF METAL-LIGAND INTERACTIONS IN SOME ADDUCTS ZNX(2)CENTER-DOT-2L (X=CL, BR, L=LIGAND WITH O OR N AS ELECTRON-DONOR ATOM)

dc.creatorLOT, EF
dc.creatorAIROLDI, C
dc.creatorCHAGAS, AP
dc.date1994
dc.dateJAN
dc.date2014-12-16T11:35:42Z
dc.date2015-11-26T16:29:55Z
dc.date2014-12-16T11:35:42Z
dc.date2015-11-26T16:29:55Z
dc.date.accessioned2018-03-28T23:10:58Z
dc.date.available2018-03-28T23:10:58Z
dc.identifierPolyhedron. Pergamon-elsevier Science Ltd, v. 13, n. 1, n. 27, n. 37, 1994.
dc.identifier0277-5387
dc.identifierWOS:A1994MR18000006
dc.identifier10.1016/S0277-5387(00)86634-6
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/64897
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/64897
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/64897
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269844
dc.descriptionThe enthalpies of dissociation of Zn-Y bonds, (D) over bar(Zn-Y), in adducts of the type ZnX(2).2L (X = Cl, Br; L = ligand with O or N as donor atom) were previously estimated by means of the extrathermodynamic hypothesis. The present paper confirms these previous calculations by means of: (a) using a thermochemical cycle involving the dissolution of solid and gaseous zinc chloride in the ligands, i.e. N,N-dimethylactamide (dma) and pyridine (py). For ZnCl2.2dma and ZnCl2.2py, the values of (D) over bar(ZnO) found were 147 +/- 15 and 156 +/- 15 kJ mol(-1), respectively. These values are comparable to those obtained previously: 139 +/- 15 and 153 +/- 15 kJ mol(-1), respectively. (b) Using the theory of Sanderson and the attribution of the bonding order leading to values of 146 +/- 15 and 141 +/- 15 kJ mol(-1) for the same adducts. For the adducts ZnCl2.2tppo and ZnBr2.2tppo (tppo = triphenylphosphineoxide), the same value of 199 +/- 15 kJ mol-l was obtained for (D) over bar(ZnO), whereas for the adduct ZnCl2.2pyo (pyo = pyridine-N-oxide) the (D) over bar(ZnO) value 230 +/- 15 kJ mol(-1) was found. The values previously reported for these tppo and pyo adducts were 184 +/- 15, 169 +/- 15 and 232 +/- 14 kJ mol(-1), respectively. By means of another thermochemical cycle the enthalpy of sublimation of the adducts was also estimated, with values close to those reported previously.
dc.description13
dc.description1
dc.description27
dc.description37
dc.languageen
dc.publisherPergamon-elsevier Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationPolyhedron
dc.relationPolyhedron
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectBond Enthalpy
dc.subjectComplexes
dc.subjectZinc
dc.subjectThermochemistry
dc.subjectSublimation
dc.subjectDiffraction
dc.subjectCombustion
dc.subjectChlorides
dc.subjectLiquids
dc.subjectOxide
dc.titleENTHALPY OF METAL-LIGAND INTERACTIONS IN SOME ADDUCTS ZNX(2)CENTER-DOT-2L (X=CL, BR, L=LIGAND WITH O OR N AS ELECTRON-DONOR ATOM)
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución