Hisako Sato   Dai Shirotani   Kazuaki Yamanari   Sumio Kaizaki   
INORGANIC CHEMISTRY 49(2) 356-358 2010年1月 [査読有り]
The vibrational circular dichroism (VCD) spectra for Delta-M[Ln((+)-hfbC)(4)] (M(I) = Na, K, Rb, Cs; Ln(III) = La, tu; abbreviated as M-Ln) and Delta-Cs[Yb((+)-hfbC)(4)] (Cs-Yb) were observed in CDCl(3) solutions. The VCD signs and/or intensities ...
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 130(42) 13814-13815 2008年10月 [査読有り]
The largest CPL activity ever measured was observed for cesium tetrakis(3-heptafluoro-butylryl-(+)-camphorato) Eu(III) complexes in EtOH and CHCl3 solutions substantiating the stereospecific formation of chiral Delta-SAPR-(C-4) configuration with ...
Dai Shirotani   Takayoshi Suzuki   Kazuaki Yamanari   Sumio Kaizaki   
JOURNAL OF ALLOYS AND COMPOUNDS 451(1-2) 325-328 2008年2月 [査読有り]
The X-ray crystal structure of tetrakis (+)-hfbc Pr(III) complex, Na[Pr((+)-hfbc)(4)]center dot CH3CN, was compared with that of the corresponding Na-La complex with a pseudo-achiral dodecahedron, and the solution CD spectra were also discussed in...
For newly prepared sodium tetrakis( 3-heptafluorobutylryl-( +)-camphorato) Ln( III) complexes, the X-ray crystal analysis revealed an unprecedented pseudo-achiral dodecahedron ( DD-8 ( D-2d)), whereas in CHCl3 solution, the exciton CD and F-19 NMR...
S Kaizaki   D Shirotani   Y Tsukahara   H Nakata   
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (17) 3503-3505 2005年9月 [査読有り]
This study demonstrates the first observation of energy transfer from the doublet state of the nitronyl nitroxide radical ligand in Ln(III) complexes, exerting the light-harvesting antenna effect on the NIR luminescence for the first time. ((c) Wi...