Influence of the Length of the Quaternisation Group on the Cyclometallation of (M = Pt(II) or Pd(II); 2,4'-R-bipy = 1'-alkyl-2,4'-bipyridinium)

DOI: 10.1039/DT9940000879

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 879 - 884 (1994)

Update date:2022-08-11

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Authors:

Wimmer, Smita

Wimmer, Franz L.

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Article abstract of DOI:10.1039/DT9940000879

Solid-state thermolysis of the 1'-alkyl-2,4'-bipyridinium complexes (M = Pd(II) or Pt(II); R = H, Me, Bu, C6H13, C8H17 or C10H21) gave the cyclometallated complexes in quantitative yield.For M = Pd there is no clear variation of the cyclometallation temperature with the length of the alkyl chain, whereas the temperature of cycloplatination decreases steadily as the length of the alkyl chain increases.The extent of cyclometallation in aqueous solution depends on the solubility of the complex and decreases as the hydrophobicity of the chain increases.

Full text of DOI:10.1039/DT9940000879

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