1H NMR investigation of the magnetic spin configuration in the molecule-based ferrimagnet [MnTFPP][TCNE]

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Publication Type Journal Article
School or College College of Science
Department Chemistry
Creator Miller, Joel Steven
Other Author Fardis, M.; Diamantopoulos, G.; Papavasiliou, G.; Pokhodnya, K.; Rittenberg, D. K.; Chirstides, C.
Title 1H NMR investigation of the magnetic spin configuration in the molecule-based ferrimagnet [MnTFPP][TCNE]
Date 2002
Description 1H NMR line-shape measurements have been performed in the linear chain molecule-based ferrimagnet [MnTFPP][TCNE].xPhMe (TFPP=tetrakis(4-fluorophenyl)porphinato; TCNE=tetracyanoethylene) as a function of temperature. Hyperfine shifts of opposite sign were observed indicating the presence of two oppositely hyperfine couplings, predominantly between the Mn ions and the 1H nuclei of the planar ring of the [MnTFPP]+ unit. The observation of the hyperfine shifts strongly suggests the existence of two oppositely directed [MnTFPP]+ sites. Since there is no direct exchange coupling between adjacent [MnTFPP] spins, then it can be argued that an ordered spin configuration with antiparallel components may arise from antisymmetric spin-spin exchange interactions. The field independence of the hyperfine shifts at low temperatures and for applied magnetic fields in the range 2-5 T, indicates the presence of ferromagnetic interactions in the ground state of the ferrimagnetic chain.
Type Text
Publisher American Physical Society
Journal Title Physical Review B
Volume 66
First Page 64422
Last Page 64426
Subject Magnetization; Magnets; Paramagnetic
Language eng
Bibliographic Citation Fardis, M., Diamantopoulos, G., Papavasiliou, G., Pokhodnya, K., Miller, J. S., Rittenberg, D. K., & Chirstides, C. (2002). 1H NMR investigation of the magnetic spin configuration in the molecule-based ferrimagnet [MnTFPP][TCNE]. Physical Review B, 66, 64422-6.
Rights Management (c) American Physical Society
Format Medium application/pdf
Format Extent 93,323 bytes
Identifier ir-main,5428
ARK ark:/87278/s6rx9wq7
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-07-11
ID 707334
Reference URL https://collections.lib.utah.edu/ark:/87278/s6rx9wq7