Synthesis and Oligonuclear Structures of Strontium and Barium Complexes with Protonated and Deprotonated N-Mesityl-P,P-diphenylphosphinic Amide Ligands.

ABSTRACT: Metalation of N-mesityl-P,P-diphenylphosphinic amide Ph₂P(O)-NHMes (HL, I) with MgBu₂ and Ae{N(SiMe₃)₂}₂ (Ae = Ca, Sr, and Ba) yields alkaline-earth metal complexes with the compositions of [(thf)_nAe(L·HL)₂] [Ae/n = Mg/0 (II), Ca/2 (III)] as well as of [Sr₂L₃(L·HL)(HL)] (1), [Ba₂L₃(L·HL)(HL)] (2), [Ba₃L₆] (3), and [(thf)₂Ba₃L₆] (4). In III, 1, 2, and 3, the alkaline-earth metal atoms are in severely distorted octahedral environments, and the structural distortions are partially caused by the small O-Ae-N bite angles of t

SUBMITTER: Schonherr PRW 

PROVIDER: S-EPMC8444311 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature