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Di-(μ-pyrazolato-N:N')-bis[(2,2'-bipyridine-N,N')platinum(II)] Bis(tetrafluoroborate) Monohydrate

1996; Wiley; Volume: 52; Issue: 4 Linguagem: Inglês

10.1107/s0108270195014326

1600-5759

Ken Sakai, T. Sato, Taro Tsubomura, Kunio Matsumoto,

Organometallic Compounds Synthesis and Characterization

The crystal structure of [Pt2(C3H3N2)2(C10H8N2)2](BF4)2.H2O, has been determined by X-ray diffraction. The six-membered ring consisting of the two Pt atoms and the four pyrazolyl N atoms has a boat-shaped conformation in which each Pt atom is located 1.14 (1) Å above the plane defined by the four pyrazolyl N atoms. The two platinum coordination planes are canted at an angle of 77.9(3)°, which is 8.1(6)° smaller than the dihedral angle between the two bipyridyl planes. The dihedral angle between the two pyrazole planes is 83.4(6)°. These angular strains are found to be caused by the intramolecular steric repulsion between the bipyridyl H and pyrazole N atoms.