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Mechanochemical Reactions of Fluorides with Hemin by Armando Paneque; Edilso Reguera; José Fernández-Bertrán; H. Yee-Madeira is a Chemistry article available to read on EtoBox.

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Hemin has two potential sites to react with ̄uorides, the peripheral acid groups and the central Fe III cation. The mechanochemical reactions of hemin with ̄uorides (LiF, NaF, KF, CsF, NH 4 F and AgF) were monitored using X-ray diffraction (XRD), and IR and Mo Èssbauer spectroscopies. LiF and NaF were found inert when milled with hemin, however KF, CsF, NH 4 F and AgF react at both hemin sites. At the iron site Cl À is replaced by F À with formation of KCl, CsCl, NH 4 Cl, and AgCl, as detected by XRD, while with the peripheral acid groups, ̄uorides collect the acidic protons to form KHF 2 , CsHF 2 , NH 4 HF and AgHF 2 . The reactions of hemin with the reactive ̄uorides take place ®rst at the iron site and then at the propionic acid groups.

Who reads Mechanochemical Reactions of Fluorides with Hemin?

Author

Armando Paneque; Edilso Reguera; José Fernández-Bertrán; H. Yee-Madeira

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-1139)

Published

2002

Language

EN

Field

Chemistry (Physical Sciences)