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dc.contributor.authorRieb, Julia
dc.contributor.authorRaba, Andreas
dc.contributor.authorHaslinger, Stefan
dc.contributor.authorKaspar, Manuel
dc.contributor.authorPöthig, Alexander
dc.contributor.authorCokoja, Mirza
dc.contributor.authorBasset, Jean-Marie
dc.contributor.authorKühn, Fritz
dc.date.accessioned2015-08-03T12:09:10Z
dc.date.available2015-08-03T12:09:10Z
dc.date.issued2014-09-15
dc.identifier.issn00201669
dc.identifier.doi10.1021/ic500959m
dc.identifier.urihttp://hdl.handle.net/10754/563759
dc.description.abstractThe synthesis of iron(II) complexes bearing new heteroatom-functionalized methylene-bridged bis(N-heterocyclic carbene) ligands is reported. All complexes are characterized by single-crystal X-ray diffraction (SC-XRD), nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis. Tetrakis(acetonitrile)-cis-[bis(o-imidazol-2-ylidenefuran)methane]iron(II) hexafluorophosphate (2a) and tetrakis(acetonitrile)-cis-[bis(o-imidazol-2-ylidenethiophene)methane]iron(II) hexafluorophosphate (2b) were obtained by aminolysis of [Fe{N(SiMe3)2}2(THF)] with furan- and thiophene-functionalized bis(imidazolium) salts 1a and 1b in acetonitrile. The SC-XRD structures of 2a and 2b show coordination of the bis(carbene) ligand in a bidentate fashion instead of a possible tetradentate coordination. The four other coordination sites of these distorted octahedral complexes are occupied by acetonitrile ligands. Crystallization of 2a in an acetone solution by the slow diffusion of Et2O led to the formation of cisdiacetonitriledi[ bis(o-imidazol-2-ylidenefuran)methane]iron(II) hexafluorophosphate (3a) with two bis(carbene) ligands coordinated in a bidentate manner and two cis-positioned acetonitrile molecules. Compounds 2a and 2b are the first reported iron(II) carbene complexes with four coordination sites occupied by solvent molecules, and it was demonstrated that those solvent ligands can undergo ligand-exchange reactions.
dc.description.sponsorshipThe authors gratefully acknowledge support and funding from the KAUST, the EU project Next-GTL, and the Technische Universitat Munchen Graduate School. J.R. thanks the Studienstiftung des deutschen Volkes for financial support.
dc.publisherAmerican Chemical Society (ACS)
dc.titleSynthesis, characterization, and reactivity of furan- and thiophene-functionalized bis(n-heterocyclic carbene) complexes of iron(II)
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentChemical Science Program
dc.identifier.journalInorganic Chemistry
dc.contributor.institutionInorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Strase 1Garching, Germany
kaust.personBasset, Jean-Marie
dc.relation.isSupplementedByRieb, J., Raba, A., Haslinger, S., Kaspar, M., Pöthig, A., Cokoja, M., … Kühn, F. E. (2015). CCDC 997387: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc12gvs5
dc.relation.isSupplementedByDOI:10.5517/cc12gvs5
dc.relation.isSupplementedByHANDLE:http://hdl.handle.net/10754/624312
dc.relation.isSupplementedByRieb, J., Raba, A., Haslinger, S., Kaspar, M., Pöthig, A., Cokoja, M., … Kühn, F. E. (2015). CCDC 997388: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc12gvt6
dc.relation.isSupplementedByDOI:10.5517/cc12gvt6
dc.relation.isSupplementedByHANDLE:http://hdl.handle.net/10754/624313
dc.relation.isSupplementedByRieb, J., Raba, A., Haslinger, S., Kaspar, M., Pöthig, A., Cokoja, M., … Kühn, F. E. (2015). CCDC 997389: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc12gvv7
dc.relation.isSupplementedByDOI:10.5517/cc12gvv7
dc.relation.isSupplementedByHANDLE:http://hdl.handle.net/10754/624314
dc.relation.isSupplementedByRieb, J., Raba, A., Haslinger, S., Kaspar, M., Pöthig, A., Cokoja, M., … Kühn, F. E. (2015). CCDC 997386: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc12gvr4
dc.relation.isSupplementedByDOI:10.5517/cc12gvr4
dc.relation.isSupplementedByHANDLE:http://hdl.handle.net/10754/624311


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