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Title: Magnetic Ordering (Tc=90K) Observed for Layered [Fell(TCNE-)(NCMe)2]+[FelllCl4]- (TCNE = Tetracyanoethylene)

Abstract

[Fe(TCNE)(NCMe){sub 2}][FeCl{sub 4}] is isolated from the reaction of TCNE and FeCl{sub 2}(NCMe){sub 2} and orders as a ferrimagnet below 90 K and is the initial member of a new class of magnets. It is the first metal-TCNE magnet with direct bonding between metal ion and [TCNE]{sup {sm_bullet}-} whose structure has been determined, and it possesses a novel planar {mu}{sub 4}-[TCNE]{sup {sm_bullet}-} spin coupling unit bonded to four Fe{sup II}'s, with an axial pair of MeCNs. The [Fe{sup III}Cl{sub 4}]{sup -} anion occupies sites between the [Fe{sup II}(TCNE{sup {sm_bullet}-})(NCMe){sub 2}]{sup +} layers. [Fe(TCNE)(NCMe){sub 2}][FeCl{sub 4}] has a coercive field of 1730 Oe and a remnant magnetization of 7500 emuK/mol at 50 K.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930157
Report Number(s):
BNL-80815-2008-JA
Journal ID: ISSN 0002-7863; JACSAT; TRN: US200822%%1207
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Chemical Society; Journal Volume: 128
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON COMPLEXES; ORDER PARAMETERS; MAGNETIC PROPERTIES; MAGNETS; SPIN; national synchrotron light source

Citation Formats

Pokhodnya,K., Bonner, M., Her, J., Stephens, P., and Miller, J. Magnetic Ordering (Tc=90K) Observed for Layered [Fell(TCNE-)(NCMe)2]+[FelllCl4]- (TCNE = Tetracyanoethylene). United States: N. p., 2006. Web. doi:10.1021/ja066744f.
Pokhodnya,K., Bonner, M., Her, J., Stephens, P., & Miller, J. Magnetic Ordering (Tc=90K) Observed for Layered [Fell(TCNE-)(NCMe)2]+[FelllCl4]- (TCNE = Tetracyanoethylene). United States. doi:10.1021/ja066744f.
Pokhodnya,K., Bonner, M., Her, J., Stephens, P., and Miller, J. Sun . "Magnetic Ordering (Tc=90K) Observed for Layered [Fell(TCNE-)(NCMe)2]+[FelllCl4]- (TCNE = Tetracyanoethylene)". United States. doi:10.1021/ja066744f.
@article{osti_930157,
title = {Magnetic Ordering (Tc=90K) Observed for Layered [Fell(TCNE-)(NCMe)2]+[FelllCl4]- (TCNE = Tetracyanoethylene)},
author = {Pokhodnya,K. and Bonner, M. and Her, J. and Stephens, P. and Miller, J.},
abstractNote = {[Fe(TCNE)(NCMe){sub 2}][FeCl{sub 4}] is isolated from the reaction of TCNE and FeCl{sub 2}(NCMe){sub 2} and orders as a ferrimagnet below 90 K and is the initial member of a new class of magnets. It is the first metal-TCNE magnet with direct bonding between metal ion and [TCNE]{sup {sm_bullet}-} whose structure has been determined, and it possesses a novel planar {mu}{sub 4}-[TCNE]{sup {sm_bullet}-} spin coupling unit bonded to four Fe{sup II}'s, with an axial pair of MeCNs. The [Fe{sup III}Cl{sub 4}]{sup -} anion occupies sites between the [Fe{sup II}(TCNE{sup {sm_bullet}-})(NCMe){sub 2}]{sup +} layers. [Fe(TCNE)(NCMe){sub 2}][FeCl{sub 4}] has a coercive field of 1730 Oe and a remnant magnetization of 7500 emuK/mol at 50 K.},
doi = {10.1021/ja066744f},
journal = {Journal of the American Chemical Society},
number = ,
volume = 128,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}