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dc.contributor.authorGriffiths, D. Vaughan
dc.contributor.authorAl-Jeboori, Mohamad J.
dc.contributor.authorArnold, Phillip J.
dc.contributor.authorCheong, Yuen-Ki
dc.contributor.authorDuncanson, Philip
dc.contributor.authorMotevalli, Majid
dc.identifier.citationGriffiths , D V , Al-Jeboori , M J , Arnold , P J , Cheong , Y-K , Duncanson , P & Motevalli , M 2010 , ' Studies of rheniumtricarbonyl complexes of tripodal pyridyl-based ligands ' , Inorganica Chimica Acta , vol. 363 , no. 6 , pp. 1186-1194 .
dc.identifier.otherPURE: 9775766
dc.identifier.otherPURE UUID: cadfbd3f-9924-45c6-9371-a660c8ec5568
dc.identifier.otherRIS: urn:05BE8FD8178E8C92BFCC2B26008C99D4
dc.identifier.otherScopus: 77949488717
dc.descriptionProtagonist in Chemistry Jonathan R. Dilworth
dc.description.abstractThe reaction of N-benzoyl and N-acetyl tris(pyridin-2-yl)methylamine 1b and 1c (LH = tpmbaH and tpmaaH) with [Re(CO)5Br] has been investigated and shown to proceed via the initial formation of a cationic rheniumtricarbonyl complex [(LH)Re(CO)3]Br in which coordination of the ligand occurs via the three pyridine rings. For tpmbaH 1b, but not tpmaaH 1c, this initial complex 2b readily undergoes the loss of HBr to give a neutral octahedral complex 4b [(L)Re(CO)3] where coordination occurs via two of the pyridine rings and the deprotonated amide nitrogen. The 1H NMR spectrum of the latter complex 4b is very unusual in that at room temperature the signals for the 3-H protons on the coordinated pyridine rings are not visible due to extreme broadening of these resonances. Comparison with the analogous complex 7 from N-benzoyl bis(pyridin-2-yl)methylamine 6b (bpmbaH) confirms that this is due to rotation of the uncoordinated pyridine ring. The structure of the cationic complex 3d [(LH)Re(CO)3]Br formed from N-benzyl tris(pyridin-2-yl)methylamine 1d (bz-tpmaH) is also discussed. The crystal structures of complexes [(tpmba)Re(CO)3] 4b, [(bz-tpmaH)Re(CO)3]Br 3d and [(bpmba)Re(CO)3] 7 have been determined. In all complexes the coordination geometry around Re is distorted octahedral with a fac-{Re(CO)3}+ core.en
dc.relation.ispartofInorganica Chimica Acta
dc.subjectTripodal ligands
dc.subjectTemperature dependent NMR
dc.subjectX-ray crystal structures
dc.titleStudies of rheniumtricarbonyl complexes of tripodal pyridyl-based ligandsen
dc.contributor.institutionMaterials and Structures
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Engineering and Technology
dc.contributor.institutionCentre for Engineering Research
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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