Synthesis and crystal structure of a homoleptic, alkali metal-free lanthanide(II) phosphide complex
摘要:
Thermal treatment of [Sm(P(CH[SiMe3](2))(C6H4-2-CH2NMe2)}(2)(THF)] (2) under reduced pressure for several hours leads to complete de-solvation and isolation of the homoleptic phosphide complex [Sm{P(CH[SiMe3](2))(C6H4-2-CH2NMe2)}(2)] (3). X-ray crystallography shows complex 3 to be monomeric, with a four-coordinate, distorted tetrahedral Sm(II) center. The close contacts between Sm and the ipso-carbon atoms of the ligands observed in 2 are absent in 3. (C) 2000 Elsevier Science B.V. All rights reserved.