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dc.contributor.authorBates, G.
dc.contributor.authorGale, P.
dc.contributor.authorLight, M.
dc.contributor.authorOgden, Mark
dc.contributor.authorWarriner, C.
dc.identifier.citationBates, Gareth and Gale, Philip and Light, Mark and Ogden, Mark and Warriner, Colin. 2008. Structural diversity in the first metal complexes of 2,5-dicarboxamidopyrroles and 2,5-dicarbothioamidopyrroles. Dalton Transactions. 31: pp. 4106-4112.

Metal complexes of 2,5-dicarboxamidopyrroles and 2,5-dicarbothioamidopyrroles have been structurally characterised for the first time, complementing the significant amount of work that has been reported for the analogous pyridine ligands. N,N!-Bis(3,5-dinitrophenyl)-3,4-diphenyl-1H-pyrrole-2,5-dicarboxamide forms octahedral bis(tridentate) complexes with cobalt(III) and nickel(II), where the ligands are bound to the metal centres through deprotonated pyrrole and amide N atoms. N,N!-Dibutyl-3,4-diphenyl-1H-pyrrole-2,5-dicarboxthioamide and N,N!-diphenyl-3,4-diphenyl-1H-pyrrole-2,5-dicarboxthioamide also form bis(tridentate) cobalt complexes but are only deprotonated at the pyrrole N atom, the remainder of the coordination sphere comprising the thioamide S atoms. The dibutyl derivative was isolated as a Co(II) complex, whereas the diphenyl system deposited a Co(III) complex. In contrast, N,N!-dibutyl-3,4-dichloro-1H-pyrrole-2,5- dicarboxamide was found to act as a bidentate ligand, in an octahedral cobalt(II) complex comprising of two bidentate pyrrole ligands, and two aqua ligands. Synthesis of N,N-bis(pyridin-2-ylmethyl)-3,4-diphenyl-1H-pyrrole-2,5-carboxamide gave a pyrrole ligand with increased denticity. Reaction with cobalt(II) chloride resulted in the isolation of a dinuclear helicate complex. The ligand was found to have undergone addition of a methoxy group to one of the linking methylene carbons, presumably as a result of the oxidative addition of solvent methanol.

dc.publisherThe Royal Society of Chemistry
dc.titleStructural diversity in the first metal complexes of 2,5-dicarboxamidopyrroles and 2,5-dicarbothioamidopyrroles
dc.typeJournal Article
dcterms.source.titleDalton Transactions

This journal is © The Royal Society of Chemistry 2008

curtin.accessStatusOpen access
curtin.facultyDepartment of Applied Chemistry
curtin.facultyNanochemistry Research Institute (Research Institute)
curtin.facultySchool of Science
curtin.facultyFaculty of Science and Engineering

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