THE UNSOLVATED PENTACHLOROFERRATE(III) ION - X-RAY CRYSTAL-STRUCTURE AND LOW-TEMPERATURE MAGNETISM OF TETRAMETHYLPIPERAZINIUM PENTACHLOROFERRATE(III)

Citation
Bd. James et al., THE UNSOLVATED PENTACHLOROFERRATE(III) ION - X-RAY CRYSTAL-STRUCTURE AND LOW-TEMPERATURE MAGNETISM OF TETRAMETHYLPIPERAZINIUM PENTACHLOROFERRATE(III), Inorganic chemistry, 34(8), 1995, pp. 2054-2057
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00201669
Volume
34
Issue
8
Year of publication
1995
Pages
2054 - 2057
Database
ISI
SICI code
0020-1669(1995)34:8<2054:TUPI-X>2.0.ZU;2-8
Abstract
Single-crystal X-ray diffraction study of the title compound, C8H20Cl5 N2Fe, indicates crystallization in the monoclinic space group C2/c, Z = 4, with unit cell parameters a = 15.56(1) Angstrom, b = 8.876(3) Ang strom, c 12.487(6) Angstrom, and beta = 115.61(6)degrees, with a nearl y ideal five-coordinate trigonal bipyramidal [FeCl5](2-) species in an ionic crystal lattice. A combination of Fe-57 Mossbauer spectroscopy and a.c. susceptometry confirms long-range magnetic order between 6 an d 7 K with a 3-D antiferromagnetic ground state.