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Insertion of Mercury into Iron-Halogen Bonds. X-Ray Structure of HgI2>

DOI: 10.1039/DT9910002503

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2503 - 2510 (1991)

Update date:2022-08-05

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Authors:

Coco, SilverioCoco, Silverio

Espinet, PabloEspinet, Pablo

Mayor, FernandoMayor, Fernando

Solans, XavierSolans, Xavier

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Article abstract of DOI:10.1039/DT9910002503

The complexes (R = Ph, p-MeC6H4 or But) react with Hg in the presence of CNR to give <(RNC)5Fe->HgI2>, and exchange reactions with AgX (X = Br or Cl) lead to the corresponding halogeno-complexes <(RCN)5Fe->HgX2>.Treatment with 1 mol of AgClO4 affords the cationic complexes <(RNC)5Fe-HgX>ClO4 which are unstable towards mercury extrusion.The relative stability of the complexes is discussed in terms of the influence of the ligands co-ordinated to Hg and the steric and electronic characteristics of the RNC ligands.The structure of <(p-MeC6H4NC)5Fe->HgI2> has been determined: monoclinic, space group P21/a, a = 16.680(3), b = 18.031(4), c = 15.256(2) Angstroem, β = 116.92(2) deg and Z = 4.

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