Synthesis of the first lanthanide complexes of dialkyl α-hydroxyiminophosphonates; ambivalent ligand bonding in the Pr<sup>III</sup>and Nd<sup>III</sup>complexes of diisopropyl α-hydroxyiminopropylphosphonate (L<sup>1</sup>), [PrL<sup>1</sup><sub>3</sub>Cl<sub>3</sub>] and [NdL<sup>1</sup><sub>2</sub>(NO<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)]
作者:S. W. Annie Bligh、Nick Choi、Harry R. Hudson、Catherine M. McGrath、Mary McPartlin
DOI:10.1039/dt9940002335
日期:——
Lanthanide complexes of dialkyl alpha-hydroxyiminophosphonates (RO)2P(O)C(R')N(OH) (L1-L3), where R = Et or Pr(i) and R' = Me or Et, have been prepared for the first time; the crystal structures of two complexes of L1 (R = Pr(i), R' = Et) have been determined, showing nine-co-ordination geometry in both cases with asymmetric bidentate ligands in [PrL13Cl3] and monodentate bonding in [NdL21(NO3)3(H2O)] demonstrating that the ambivalent nature of the new ligands allow formation of neutral complexes.