594-31-0Relevant articles and documents
Establishing the coordination chemistry of antimony(v) Cations: Systematic assessment of Ph4Sb(OTf) and Ph3Sb(OTf)2 as Lewis acceptors
Robertson, Alasdair P. M.,Chitnis, Saurabh S.,Jenkins, Hilary A.,McDonald, Robert,Ferguson, Michael J.,Burford, Neil
, p. 7902 - 7913 (2015/05/20)
The coordination chemistry of the stiboranes Ph4Sb(OTf) (1 a, OTf = OSO2CF3) and Ph3Sb(OTf)2 (3) with Lewis bases has been investigated. The significant steric encumbrance of the Sb center in 1 a precludes interaction with most ligands, but the relatively low steric demands of 4-methylpyridine-N-oxide (OPyrMe) and OPMe3 enabled the characterization of [Ph4Sb(OPyrMe)][OTf] (2 a) and [Ph4Sb(OPMe3)][OTf] (2 b), rare examples of structurally characterized complexes of stibonium acceptors. In contrast, 3 was found to engage a variety of Lewis bases, forming stable isolable complexes of the form [Ph3Sb(donor)2][OTf]2 [donor=OPMe3 (6 a), OPCy3 (6 b, Cy=cyclohexyl), OPPh3 (6 c), OPyrMe (6 d)], [Ph3Sb(dmap)2(OTf)][OTf] (6 e, dmap=4-(dimethylamino)pyridine) and [Ph3Sb(donor)(OTf)][OTf] [donor=1,10-phenanthroline (7 a) or 2,2′-bipy (7 b, bipy=bipyridine)]. These compounds exhibit significant structural diversity in the solid-state, and undergo ligand exchange reactions in line with their assignment as coordination complexes. Compound 3 did not form stable complexes with phosphine donors, with reactions instead leading to redox processes yielding SbPh3 and products of phosphine oxidation.
Coordination complexes of Ph3Sb2+ and Ph 3Bi2+: Beyond pnictonium cations
Robertson, Alasdair P. M.,Burford, Neil,McDonald, Robert,Ferguson, Michael J.
supporting information, p. 3480 - 3483 (2014/04/03)
The syntheses of salts containing ligand-stabilized Ph3Sb 2+ and Ph3Bi2+ dications have been realized by in situ formation of Ph3Pn(OTf)2 (Pn=Sb or Bi) and subsequent reaction with OPPh3, dmap and bipy. The solid-state structures demonstrate diversity imposed by the steric demands and nature of the ligands. The synthetic method has the potential for broad application enabling widespread development of the coordination chemistry for PnV acceptors. A coordinated effort: The synthesis and characterization of OPPh 3, dmap (4-(dimethylamino)pyridine), and bipy (2,2′-bipyridine) complexes of SbV and BiV are reported. The solid-state structures demonstrate structural diversity driven by the steric demands and the nature of the ligands.
Synthesis of N,C bound sulfur, selenium, and tellurium heterocycles via the reaction of chalcogen halides with -CH3 substituted diazabutadiene ligands
Jason L. Dutton,Caleb D. Martin,Michael J. Sgro,Nathan D. Jones,Ragogna, Paul J.
, p. 3239 - 3247 (2009/09/04)
A series of N,C bound chalcogen heterocycles from the reaction of chalcogen halides (ChXn; Ch ) S, Se Te; X ) Cl, Br; n ) 2, 4) with N-alkyl or N-aryl 1,4-diazabutadiene (DAB) ligands featuring methyl substituents on the backbone C-C linkage ar
