Synthesis and Characterization of N-[2-P(i-Pr)(2)-4-methylphenyl](2)(-) (PNP) Pincer Tin(IV) and Tin(II) Complexes

Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany.
Inorganic Chemistry (Impact Factor: 4.76). 04/2012; 51(10):5787-94. DOI: 10.1021/ic300324s
Source: PubMed


N-[2-P(i-Pr)(2)-4-methylphenyl](2)(-) (PNP) pincer complexes of tin(IV) and tin(II), [(PNP)SnCl(3)] (2) and [(PNP)SnN(SiMe(3))(2)] (3), respectively, were prepared and characterized by X-ray diffraction, solution and solid state NMR spectroscopy, and (119)Sn Mössbauer spectroscopy. Furthermore, (119)Sn cross polarization magic angle spinning NMR spectroscopic data of [Sn(NMe(2))(2)](2) are reported. Compound 2 is surprisingly stable toward air, but attempts to substitute chloride ligands caused decomposition.

4 Reads
  • [Show abstract] [Hide abstract]
    ABSTRACT: Reactions of Me(3)P with SnCl(4) in the presence of nAlCl(3) (n = 0, 1, 2) yields a series of P-Sn complexes illustrating new bonding environments for tin.
    No preview · Article · Jul 2012 · Chemical Communications
  • [Show abstract] [Hide abstract]
    ABSTRACT: This review aims to develop an understanding of reactivity trends of p-block metal bases M(NR2)n (M = Sn: n = 2; M = Al, Ga, As, Sb: n = 3) towards organic substrates EHy containing one or more E-H bonds (E = B, N, P, S). These compounds not only act as good bases for the deprotonation of E-H bonds but recent advances in p-block amido chemistry have shown that, in addition, they can effect the dehydrogenic homo-coupling of primary phosphines and amines to give E-E bonded products. They have also been found to be active in stoichiometric and catalytic dehydrocoupling of amine-boranes, which has direct applications in hydrogen storage devices, revealing that these p-block catalysts offer potential alternatives to the extensive range of expensive and often highly toxic heavy metal catalysts. This perspective analyses three distinct reactivity patterns of p-block metal bases; deprotonation, stoichiometric dehydrocoupling and catalytic dehydrocoupling and attempts to rationalise reactivity in relation to the redox stability of the p-block metal.
    No preview · Article · Oct 2013 · Dalton Transactions
  • [Show abstract] [Hide abstract]
    ABSTRACT: Complexes of Group 2, 12, 13, 14, 15 and 16 elements with mono-, bi-, and poly-dentate phosphine and arsine ligands (and including the very few examples of stibine and bismuthine donor ligands) are described. Polydentate ligand complexes containing neutral or charged N, O, C, or S donor groups in addition to phosphino or arsino donor groups are included, but charged P or As (phosphides, arsenides, phosphinomethanides etc.) ligands are excluded. Emphasis is placed upon the X-ray structures, multinuclear NMR data and reactions. The major differences of this class of complexes compared to the familiar d-block phosphine/arsine complexes are discussed and rationalised in terms of the E–M bonding models. Literature coverage is focussed on the last 20 years, although key older work is also included where necessary for comparison purposes, and the article includes work published up to early 2013.
    No preview · Article · Apr 2014 · Coordination Chemistry Reviews
Show more