![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)
Tetra-kis(pyridine-2-carboxyl-ato-κN,O)palladium(IV) dihydrate
1School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.
Abstract:
The asymmetric unit of the title compound, [Pd(C(6)H(4)NO(2))(4)]·2H(2)O, consists of a quarter of a neutral Pd(IV) complex and half of a solvent water mol-ecule. In the complex, the Pd(IV) ion is located on a fourfold inversion axis and eight-coordinated in a distorted dodeca-hedral environment by four N and four O atoms from four symmetry-related pyridine-2-carboxyl-ate (pic) anionic ligands. In the crystal, the water mol-ecule is involved in O-H⋯O hydrogen bonding, and weak inter-molecular C-H⋯O hydrogen bonds occur. There are also inter-molecular π-π inter-actions between adjacent pyridine rings, with a centroid-centroid distance of 3.715 (3) Å.
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