Synthesis, Structure, and Properties of Al(Rbpy)3 Complexes (R = t‐Bu, Me): Homoleptic Main-Group Tris-bipyridyl Compounds

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dc.contributor.authorDeCarlo, Samantha
dc.contributor.authorMayo, Dennis H.
dc.contributor.authorTomlinson, Warren
dc.contributor.authorHu, Junkai
dc.contributor.authorHooper, Joseph
dc.contributor.authorZavalij, Peter
dc.contributor.authorBowen, Kit
dc.contributor.authorSchnöckel, Hansgeorg
dc.contributor.authorEichhorn, Bryan
dc.contributor.departmentPhysicsen_US
dc.date.accessioned2016-05-26T19:49:46Z
dc.date.available2016-05-26T19:49:46Z
dc.date.issued2016
dc.descriptionThe article of record as published may be found at http://dx.doi.org/10.1021/acs.inorgchem.6b00034en_US
dc.descriptionThe Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.inorg- chem.6b00034. Crystallographic data for 1 (CIF) Crystallographic data for 2 (CIF) Characterizationdata(PDF)en_US
dc.description.abstractThe neutral homoleptic tris-bpy aluminum complexes Al(Rbpy)3, where R = tBu (1) or Me (2), have been synthesized from reactions between AlX precursors (X = Cl, Br) and neutral Rbpy ligands through an aluminum disproportion process. The crystalline compounds have been characterized by single-crystal X-ray diffraction, electrochemical experiments, EPR, magnetic susceptibility, and density functional theory (DFT) studies. The collective data show that 1 and 2 contain Al3+ metal centers coordinated by three bipyridine (bpy•)1− monoanion radicals. Electrochemical studies show that six redox states are accessible from the neutral complexes, three oxidative and three reductive, that involve oxidation or reduction of the coordinated bpy ligands to give neutral Rbpy or Rbpy2− dianions, respectively. Magnetic susceptibility measurements (4− 300 K) coupled with DFT studies show strong antiferromagnetic coupling of the three unpaired electrons located on the Rbpy ligands to give S = 1/2 ground states with low lying S = 3/2 excited states that are populated above 110 K (1) and 80 K (2) in the solid-state. Complex 2 shows weak 3D magnetic interactions at 19 K, which is not observed in 1 or the related [Al(bpy)3] complex.en_US
dc.description.funderDTRA (HDTRA-1-12-1-007)en_US
dc.identifier.citationDeCarlo, Samantha, et al. "Synthesis, Structure, and Properties of Al (Rbpy) 3 Complexes (R= t-Bu, Me): Homoleptic Main-Group Tris-bipyridyl Compounds." Inorganic chemistry (2016), 55, 4344-4353.
dc.identifier.urihttps://hdl.handle.net/10945/48738
dc.relation.ispartofseriesFaculty & Researcher Publications
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleSynthesis, Structure, and Properties of Al(Rbpy)3 Complexes (R = t‐Bu, Me): Homoleptic Main-Group Tris-bipyridyl Compoundsen_US
dc.typeArticle
dspace.entity.typePublication
relation.isSeriesOfPublicationc2c3de57-d1f4-47b1-aa53-6f1c074e4c20
relation.isSeriesOfPublication.latestForDiscoveryc2c3de57-d1f4-47b1-aa53-6f1c074e4c20
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