Takahiko Kojima, Kaoru Saeki, Kazuhiro Ono, Masaaki Ohba and Yoshihisa Matsuda
The first X-ray crystal structure determination of a biphosphole–transition-metal complex is reported; the square-planar palladium(II) complex has unique intramolecular π–π interaction between phenyl groups on chiral phosphorus atoms of two biphosphole ligands.