Motion of an Isolated Water Molecule within a Flexible Coordination Cage: Structural Properties and Catalytic Effects of Ionic Palladium(II) Complexes

摘要

The unique cage complexes [[(Me_4en)Pd]_3-(L)_2](X)_6 (L = l,3,5-tris(isonicotinoyloxyethyl)cyanurate; X = BF_4 , ClO_4 ) were constructed. A single water molecule in a skeletal cage was reversibly associated and dissociated via a combination of the adequate space, polar environment, and conformational flexibility of the cage. In Suzuki-Miyaura C-C cross-coupling reactions, the cage complex showed significant catalytic activity along with the effects of the isolated single water molecule.