863101-52-4Relevant articles and documents
Multidentate aryloxide and oxo-aryloxide complexes of antimony: Synthesis and structural characterization of [η4-N(o-C6H 4O)3]Sb(OSMe2), {{[η3-N(o-C 6H4OH)(o-C6H4O)2]Sb} 2(μ2-O)}2
Tanski, Joseph M.,Kelly, Bryte V.,Parkin, Gerard
, p. 2442 - 2447 (2005)
Antimony compounds that feature multidentate aryloxide ligands, namely [η4-N(o-C6H4O)3]Sb(OSMe 2), {{[η3-N(o-C6H4OH)(o-C 6H4O)2]Sb}2(μ2-O)} 2, and {[η3-PhN(o-C6H4O) 2]Sb}4(μ3-O)2 have been synthesized from N(o-C6H4OH)3 and PhN(o-C 6H4OH)2 and structurally characterized by X-ray diffraction. While [η4-N(o-C6H4O) 3]Sb(OSMe2) exists as a discrete mononuclear species, the oxo complexes {{[η3-N(o-C6H4OH)(o-C 6H4O)2]Sb}2(μ2-O)} 2 and {[η3-PhN(o-C6H4O) 2]Sb}4(μ3-O)2 are multinuclear. Specifically, the dinuclear fragment {[η3-N(o-C6H 4OH)(o-C6H4O)2]Sb} 2(μ2-O)} exists in a dimeric form due to the bridging oxo ligand participating in an intermolecular hydrogen bonding interaction, while the dinuclear fragment {[η3-PhN(o-C6H 4O)2]Sb}2(μ2-O) exists in a dimeric form due to the bridging oxo ligand serving as a donor to the antimony of a second fragment. The structures of {{[η3-N(o-C 6H4OH)(o-C6H4O)2]Sb} 2(μ2-O)}2 and {[η3-PhN(o- C6H4O)2]Sb}4(μ3-O) 2, therefore, indicate that an oxo ligand bridging two Sb III centers is sufficiently electron rich to serve as both an effective hydrogen bond acceptor and as a ligand for an additional Sb III center. The Royal Society of Chemistry 2005.
