656255-05-9Relevant academic research and scientific papers
Synthesis and Structures of Complexes Demonstrating the Coordinative Versatility of the 2,4-Diimino-3-phosphinopentene Anion (γ -Phosphino-β-diketiminate)
Burford, Neil,D'Eon, Mark,Ragogna, Paul J.,McDonald, Robert,Ferguson, Michael J.
, p. 734 - 738 (2004)
The synthesis and characterization of a 2,4-diimino-3-phosphinopentene anion (γ-phosphino-β -diketiminate) is reported and enables diversification of the β-diketiminate ligand framework, which has been widely employed across the periodic table. Phosphines are observed to adopt the γ-position of the ligand rather than the N,N′ chelate. While aluminum and lithium adopt the familiar N,N′ chelate arrangement with the new 2,4-diimino-3-phosphinopentene anion ligand, reactions with AsCl 3 or SbCl3 result in substitution at the β-methyl position on the ligand backbone, realizing novel P→E (E = As or Sb) intramolecular coordination. The chemistry of the 2, 4-diimino-3-phosphinopentene anion can be monitored by the 31P NMR chemical shifts, which are distinctively diagnostic of the coordinative engagement of the ligand.
