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Updated: Oct 10, 2025
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Published on: February 15, 2016
Chiral Dinuclear EuIII , TbIII , and YIII Complexes Supported by P-Stereogenic Linear Tetraphosphine Tetraoxide
Tomoaki Tanase1, Kanako Nakamae1, Yume Okawa1
1Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara, 630-8506, Japan.
Abstract:
A P-stereogenic linear tetraphosphine tetraoxide, (R,R)- or (S,S)-dpmppm(=O)4 , was synthesized to prepare C2 dinuclear M(hfa)3 complexes (M=Eu, Tb, Y) as the first example of lanthanide(III) complexes with P-chiral multidentate phosphine oxides. The mononuclear M(hfa)3 complexes (M=Eu, Y) with a P-chiral diphosphine dioxide, tpdpb(=O)2 , were also prepared, and comparison of their photophysical properties for the EuIII complexes revealed that significant chiral induction from the P-chiral centers arises on the achiral M(hfa)3 units through intramolecular π-π stacking constraint in the dinuclear system.
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