Photomagnetic response in highly conductive iron(II) spin-crossover complexes with TCNQ radicals.
Angew Chem Int Ed Engl
; 54(3): 823-7, 2015 Jan 12.
Article
in En
| MEDLINE
| ID: mdl-25417937
ABSTRACT
Co-crystallization of a cationic Fe(II) complex with a partially charged TCNQ(.δ-) (7,7',8,8'-tetracyanoquinodimethane) radical anion has afforded molecular materials that behave as narrow band-gap semiconductors, [Fe(tpma)(xbim)](X)(TCNQ)(1.5)â
DMF (X=ClO4(-) or BF4(-); tpma=tris(2-pyridylmethyl)amine, xbim=1,1'-(α,α'-o-xylyl)-2,2'-bisimidazole). Remarkably, these complexes also exhibit temperature-and light-driven spin crossover at the Fe(II) center, and are thus the first structurally defined magnetically bistable semiconductors assembled with the TCNQ(.δ-) radical anion. Transport measurements reveal the conductivity of 0.2â
S cm(-1) at 300â
K, with the low activation energy of 0.11â
eV.
Full text:
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2015
Document type:
Article