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The Mode of Co-ordination of the Quaternised 2,4'-Bipyridinium Cation. Crystal Structures of Trichloro(1'-methyl-2,4'-bipyridinium-κN1)platinum(II) Dihydrate and Dichloro(1'-methyl-2,4'-bipyridin-3'-ylium-κC3',N1)platinum(II)

DOI: 10.1039/DT9900002971

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2971 - 2977 (1990)

Update date:2022-08-10

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Authors:

Castan, PauleCastan, Paule

Dahan, FrancoiseDahan, Francoise

Wimmer, SmitaWimmer, Smita

Wimmer, Franz L.Wimmer, Franz L.

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Article abstract of DOI:10.1039/DT9900002971

The 1'-methyl-2,4'-bipyridinium ion (2,4'-mbipy+) reacts with K2 (M = PtII or PdII; X = Cl or Br) to give the zwitterionic compounds .The crystal and molecular structure of has been determined by single-crystal X-ray analysis.The compound crystallizes in the monocyclic system, space group P21/c with a = 12.319(2), b = 9.359(1), c = 13.665(2) Angstroem, and β = 107.90(1) deg.From , cyclometallated 3X2>, (M = Pt or Pd, X = Cl or Br, L3 = 1'-methyl-2,4'-bipyridin-3'-ylium) has been synthesized and spectroscopically characterized.The crystal and molecular structure of 3Cl2> has been determined by single-crystal X-ray analysis.The compound crystallizes in the orthorhombic system, space group Pbca, a = 7.643(1), b = 17.726(2), and c = 17.142(2) Angstroem. 2,4'-Bipyridyl (2,4'-bipy) reacts with PdX2 (X = Cl or O2CMe) to yield trans- and with K2 to give cis-.Heating trans- in acetic acid gives the cyclometallated dimer <2(μ-O2CMe)>2> (L2 = 2,4'-bipyridin-3-ylium).

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Product name:1-methyl-4-(pyridin-2-yl)pyridinium iodide

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