One dimensional channels are formed in the three-dimensional open-framework iron selenite
[C 4 N 2 H 12 ] 0.5 [Fe 2 F 3 (SeO 3
) 2 ] (I), which was synthesized hydrothermally from FeCl 3 ·6H 2 O,
HF, and SeO 2 in the presence of the organic amine piperazine. The same inorganic
framework was also obtained with the amines diethylenetetramine, 1,3-diaminopropane, and
ethylenediamine. Compound I displays unusual magnetic frustration behavior that is attributed to the
tetrahedral geometry.
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