Alkali Metal Complexes of a Bis(diphenylphosphino)methane Functionalized Amidinate Ligand: Synthesis and Luminescence.

ABSTRACT: A novel bis(diphenylphosphino)methane (DPPM) functionalized amidine ligand (DPPM-C(N-Dipp)₂ H) (Dipp=2,6-diisopropylphenyl) was synthesized. Subsequent deprotonation with suitable alkali metal bases resulted in the corresponding complexes [M{DPPM-C(N-Dipp)₂ }(L_n )] (M=Li, Na, K, Rb, Cs; L=thf, Et₂ O). The alkali metal complexes form monomeric species in the solid state, exhibiting intramolecular metal-π-interactions. In addition, a caesium derivative [Cs{PPh₂ CH₂ -C(N-Dipp)₂ }]₆ was obtained by cleavage of a diphenylphosphino moiety, forming an unusual six-membered ring structure in the solid state. All complexes were fully characterized by single crystal X-ray diffraction, NMR spectroscopy, IR spectros

SUBMITTER: Zovko C 

PROVIDER: S-EPMC8596514 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature