A comparison of the NMR, mass spectral, and molecular structure data for [R2A1N(CH2PH)2]2, where R = Me, Et, Prn, Bun, and Bui

Academic Article

Abstract

  • Aminoalane dimers of the formula [R AlN(CH Ph) ] , where R = Pr , Bu , and Bu , were synthesized by thermolysis of the corresponding 1:1 mixtures of the trialkylaluminum and dibenzylamine at 120 °C. The H and C NMR spectra of the series [R AlN(CH Ph) ] , where R = Me (1), Et (2), Pr (3), Bu (4), and Bu (5), were fully assigned using a combination of 1-D and 2-D NMR techniques. This series was also characterized by electron impact (EI) mass spectrometry and fragmentation patterns are discussed. The single-crystal X-ray structural data of [Et AlN(CH Ph) ] and [Bu AlN(CH Ph) ] were determined and the data compared with those of [Me AlN(CH Ph) ] to identify any structural trends in the series with respect to R. The structural data for these three compounds are also compared with data for [MeAlN(H)CH Ph] , [RAlN(CH Ph)-μ-(CH C H )] , and Me Al· HN(CH Ph) . Finally, the molecular structure data of [Me MN(CH Ph) ] and Me M·HN(CH Ph) , where M = Al, Ga and In, are discussed in terms of the influence of the Group 13 metal. © 2002 Elsevier Science Ltd. All rights reserved. 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 6 4 2 3 2 2 2 2 2 2 3 2 2 n n i 1 13 n n i n
  • Published In

  • Polyhedron  Journal
  • Digital Object Identifier (doi)

    Author List

  • Styron EK; Lake CH; Powell DH; Watkins CL; Krannich LK
  • Start Page

  • 1747
  • End Page

  • 1753
  • Volume

  • 21
  • Issue

  • 17