Magnetic ordering in TCNQ-based metal–organic frameworks with host–guest interactions
Journal Article
·
· Inorganic Chemistry Frontiers (Online)
- Texas A & M Univ., College Station, TX (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Host–guest interactions between the aromatic molecules benzene, toluene, aniline and nitrobenzene and the redox-active TCNQ-based metal–organic framework (MOF), Fe(TCNQ)(4,4'-bpy) (1) (TCNQ = 7,7,8,8-tetracyanoquinodimethane), have been found to modulate spontaneous magnetization behaviours at low temperatures. An analogous MOF, Mn(TCNQ)(4,4'-bpy) (2) with isotropic Mn(II) ions as well as the two-dimensional compound Fe(TCNQ)(DMF)2·2DMF (3·2DMF), were also prepared as models for studying the effects of single-ion magnetic anisotropy and structural distortion on spin canting. In this work, the results indicate guest-dependent long range magnetic ordering occurs at low temperatures, which correlates with the electrostatic and steric effects of the incorporated aromatic guests.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-06CH11357; SC0012582
- OSTI ID:
- 1352247
- Journal Information:
- Inorganic Chemistry Frontiers (Online), Journal Name: Inorganic Chemistry Frontiers (Online) Journal Issue: 10 Vol. 2; ISSN 2052-1553
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
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