Chiral Dinuclear EuIII,TbIII, and YIII Complexes Supported by P-Stereogenic Linear Tetraphosphine Tetraoxide |
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| Authors: | Prof Dr Tomoaki Tanase Dr Kanako Nakamae Yume Okawa Mami Hamada Dr Arimasa Matsumoto Prof Dr Takayuki Nakajima Prof Dr Takuya Nakashima Prof Dr Tsuyoshi Kawai |
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| Institution: | 1. Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara, 630-8506 Japan;2. Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara, 630-0192 Japan |
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| 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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| Keywords: | circularly polarized luminescence europium P-stereogenic tetraphosphine tetraoxide terbium yttrium |
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