Cover Picture: Pentacoordinate Nickel(II) Complexes Double Bridged by Phosphate Ester or Phosphinate Ligands: Spectroscopic, Structural, Kinetic, and Magnetic Studies (Chem. Eur. J. 7/2004)

The cover picture shows a representation of two pathways for the hydrolysis of phosphotriesters, which are represented by tris(phenyl)phosphate (TPP). The catalytic hydrolysis is represented by a novel bimetallic nickel( II ) complex that contains a double phosphodiester bridge, prepared from the reaction of TPP with the hydroxo–nickel( II ) complex [Ni(Me 3 [12]aneN 3 )(μ‐OH)] 2 [PF 6 ] 2 (top right) The enzymatic hydrolysis (bottom left) is represented by the phosphotriesterase from Pseudomonas diminuta (PDB ID: 1EYW), a zinc‐containing enzyme. The cover picture was created by A. Abel Lozano. For more details please see the article by G. García, M. D. Santana et al. on p. 1738ff.