502481-55-2Relevant academic research and scientific papers
A new class of linked-bis(N,N′-dialkylamidinate) ligand: Applications in the synthesis of bimetallic aluminium complexes
Grundy, Joanna,Coles, Martyn P.,Hitchcock, Peter B.
, p. 178 - 187 (2008/10/08)
The 1,4-benzenebis(N,N′-dialkylamidine) compounds, 1,4-C6H4[C{NR}{NHR}]2 (1, R = Cy; 2, R =iPr) were synthesised via addition of a stoichiometric amount of water to the 1,4-benzenebis(amidinate) species, generated from the in situ reaction between 1,4-Li2C6H4 and the appropriate carbodiimide. Alternatively, the neutral silylated derivatives, 1,4-C6H4[C{NR}{N(SiMe3)R}]2 (3, R = Cy; 4, R = iPr) are synthesised by quenching the 1,4-benzenebis(amidinate) with excess Me3SiCl. Structural characterisation of selected examples are reported, showing that the neutral NH compounds are monomeric with a E-syn:E-syn arrangement of the Nalkyl substituents, while in the silylated derivative 4, the E-anti:E-anti form is present in the solid-state. Synthesis of the bimetallic aluminium compounds revealed a monomeric complex with a perpendicular arrangement of the amidinate units with respect to the C6-group. 2002 Elsevier Science B.V. All rights reserved.
