Synthesis, Structure and Complexation Ability of Novel Metalloreceptors Containing Two Pincer Complexes of Palladium(
<scp>II</scp>
)
作者:Tatsuya Nabeshima、Daisuke Nishida、Shigehisa Akine、Toshiyuki Saiki
DOI:10.1002/ejic.200400508
日期:2004.10
Metalloreceptors 1a and 1b were synthesized by palladation of 42- and 54-membered crown ethers that have two SCS-pincer ligand moieties. The X-ray crystallographic analysis reveals that the metalloreceptor 1b has a folded structure in which the two pincer-Pd moieties are stacked in a parallel manner. The metalloreceptor 1b recognizes the aromatic bidentate guests 4,4′-bipyridine, pyrazine, and pyrimidine