426
H. Kobayashi
Scheme 12.2 Chemical structures of guest radicals described in this review: 4-substitutedTEMPO derivatives (4-X-TEMPO: a–d), DTBN (e), 4-substitute-PhNN (4-XPNN: f and g), and
PhIN (h)
Scheme 12.3 Chemical
structures of spacers
described in this review:
4-substituted-TEMP
derivatives (4-R-TEMP: a–c),
pivalone (d), and N-PhMI (e)
resolved ESR spectra due to the reduction of dipolar broadening. Above 108 K,
TEMPO radicals dispersed in TPP nanochannels by TEMP were found to undergo
anisotropic rotational diffusion around the principal y-axis of the g tensors of
the radicals, which were perpendicular to the molecular long axis (see Sects.
12.2.3 and 12.5) [40]. These results suggest the possibility of correlating the
inter-spin exchange/dipolar interactions of 1a/2a with the molecular dynamics of
TEMPO radicals in TPP nanochannels. 1a/2a undergo antiferromagnetic exchange
interactions at quite low temperatures, indicating that one-dimensional organic
H. Kobayashi
Scheme 12.2 Chemical structures of guest radicals described in this review: 4-substitutedTEMPO derivatives (4-X-TEMPO: a–d), DTBN (e), 4-substitute-PhNN (4-XPNN: f and g), and
PhIN (h)
Scheme 12.3 Chemical
structures of spacers
described in this review:
4-substituted-TEMP
derivatives (4-R-TEMP: a–c),
pivalone (d), and N-PhMI (e)
resolved ESR spectra due to the reduction of dipolar broadening. Above 108 K,
TEMPO radicals dispersed in TPP nanochannels by TEMP were found to undergo
anisotropic rotational diffusion around the principal y-axis of the g tensors of
the radicals, which were perpendicular to the molecular long axis (see Sects.
12.2.3 and 12.5) [40]. These results suggest the possibility of correlating the
inter-spin exchange/dipolar interactions of 1a/2a with the molecular dynamics of
TEMPO radicals in TPP nanochannels. 1a/2a undergo antiferromagnetic exchange
interactions at quite low temperatures, indicating that one-dimensional organic