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Organic Radicals [Magnetic Materials]

 Ferromagnetic and ferrimagnetic properties of metal compounds are based on contributions of unpaired d- or f-electrons of transition or lanthanoid metals. On the other hand, magnetic properties of metal-free organic compounds are due to unpaired π-electrons. Normally, π-electrons are favorable to electrical conduction in material science, because they are movable by the π-conjugation effect, but they have received less attention for magnetic materials. However, diverse chemical modifications of an organic molecule have produced organic radical-based ferromagnets.1,2) It is known that the charge transfer complex obtained from fullerene with tetrakis(dimethylamino)ethylene (TDAE) becomes an organic magnet.3) In addition to using a π-conjugated organic radical, localized free radical species also provide organic magnets. 4-Nitrophenylnitronyl nitroxide (NPNN) was the first organic ferromagnet in a pure organic radical.4) Nogami et al. reported that 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO) and its analogues became ferromagnets or antiferromagnets.5,6) Furthermore, 1,1-diphenyl-2-picrylhydrazyl (DPPH) is an antiferromagnet at extremely low temperature.
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Product Number I0487
CAS RN 25713-24-0
Purity / Analysis Method: >98.0%(HPLC)

Product Number I0486
CAS RN 36410-81-8
Purity / Analysis Method: >97.0%(GC)(T)

Product Number C1432
CAS RN 36775-23-2
Purity / Analysis Method: >96.0%(HPLC)

Product Number O0266
CAS RN 2896-70-0
Purity / Analysis Method: >95.0%(GC)(T)

Product Number H0865
CAS RN 2226-96-2
Purity / Analysis Method: >98.0%(GC)

Product Number T1560
CAS RN 2564-83-2
Purity / Analysis Method: >98.0%(GC)(T)

Product Number G0555
CAS RN 122413-85-8
Purity / Analysis Method: >95.0%(GC)(T)

Product Number:   I0487 | Purity / Analysis Method:   >98.0%(HPLC)

Product Number:   I0486 | Purity / Analysis Method:   >97.0%(GC)(T)

Product Number:   O0266 | Purity / Analysis Method:   >95.0%(GC)(T)

Product Number:   H0865 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   T1560 | Purity / Analysis Method:   >98.0%(GC)(T)

Product Number:   G0555 | Purity / Analysis Method:   >95.0%(GC)(T)

  • 1(current)
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