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Tetrachloroferrate(III) Complexes of some Organic Diammonium Cations: Structures and Magnetic Properties
Author(s) -
James Bruce D.,
Mrozinski Jerzy,
Klak Julia,
Skelton Brian W.,
White Allan H.
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700330
Subject(s) - ethylenediamine , tetramethylethylenediamine , hydrogen bond , chemistry , aqueous solution , antiferromagnetism , chloride , yield (engineering) , inorganic chemistry , magnetic susceptibility , crystallography , materials science , polymer chemistry , organic chemistry , metallurgy , molecule , condensed matter physics , physics
With aqueous acidic iron(III) chloride, the three diamines ethylenediamine (en), tetramethylethylenediamine (tmeda) and 4:4′‐tetramethyldiaminodiphenylmethane (ddmp) yield the aquapentachloroferrate(III) and a pair of [FeCl 4 ] − Cl − double salts, respectively. Their structures indicate that N–H···Cl hydrogen bonding is present, but the Fe···Fe distances are all quite long. The magnetic data show that, while all the materials display antiferromagnetic coupling on cooling, in none of the cases was any transition observed above 1.8 K.