Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex

Glaser T, Lugger T, Hoffmann RD (2004)
European Journal of Inorganic Chemistry 2004(11): 2356-2362.

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Abstract
The reaction of 4-tert-butyl- 2,6-bis(hydroxymethyl) phenol (H3L) with Fe-III. ions in methanol in the presence of an excess of NaOH afforded the tetra-anionic dinuclear complex Na-4[(HL)(4)Fe-2(III)(CO3)].11MeOH.3H(2)O (1). Changing the solvent to an ethanol/dme (dme = 1,2-dimethoxyethane) mixture led to the formation of the decanuclear complex [(HL)(12)Fe-III Na-10(4)(mu(4)-O)(4)(mu(3)-OH)(2)(dme)(2)(EtOH)(2)].2dme.8EtOH (2). The Mossbauer spectra of 1' and 2 at 80 K are consistent with high spin Fe-III sites in distorted octahedral O-6 coordination environments. Compound 1 consists of a tetra-anionic dinuclear iron complex with the unprecedented [Fe-III(mu(2)-OBz)(2)(mu(2)-CO3)Fe-III](2+) core. Compound 2 contains a core of hydrous ferric oxide produced by a modified hydrolysis of Fell, ions in the presence of the ligand. Eight benzyl alcohol groups are located on the surface of 2 leading to a 2D network structure by intermolecular hydrogen bonding. The temperature dependence of the magnetic susceptibilities of 1' and 2 indicates antiferromagnetic interactions between the ferric ions. The data for V were fitted with J = -4.4 cm(-1) and g = 1.98, H = -2JS(1)S(2). (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
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Glaser T, Lugger T, Hoffmann RD. Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex. European Journal of Inorganic Chemistry. 2004;2004(11):2356-2362.
Glaser, T., Lugger, T., & Hoffmann, R. D. (2004). Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex. European Journal of Inorganic Chemistry, 2004(11), 2356-2362.
Glaser, T., Lugger, T., and Hoffmann, R. D. (2004). Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex. European Journal of Inorganic Chemistry 2004, 2356-2362.
Glaser, T., Lugger, T., & Hoffmann, R.D., 2004. Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex. European Journal of Inorganic Chemistry, 2004(11), p 2356-2362.
T. Glaser, T. Lugger, and R.D. Hoffmann, “Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex”, European Journal of Inorganic Chemistry, vol. 2004, 2004, pp. 2356-2362.
Glaser, T., Lugger, T., Hoffmann, R.D.: Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex. European Journal of Inorganic Chemistry. 2004, 2356-2362 (2004).
Glaser, Thorsten, Lugger, T, and Hoffmann, RD. “Iron complexes with the alcoholato donor-rich ligand 4-tert-butyl-2,6-bis(hydroxymethyl)phenol: Synthesis and characterization of a tetra-anionic Fe-2 complex and a neutral Fe10Na4 complex”. European Journal of Inorganic Chemistry 2004.11 (2004): 2356-2362.
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