142
5 Mechanical-Stimulation-Triggered and Solvent-Vapor-Induced …
Fig. 5.9 Schematic representation of the crystals of 3 that were used for the single-crystal XRD
measurements upon mechanical-force-induced and MeOH-vapor-induced SCSC phase transitions
to orange. The entire crystal exhibited the orange emission after ~40 min (3O SCSC ).
Remarkably, when the petri dish was covered with a lid, the orange emission color of
3O SCSC changed to green, similar to that of 3G/MeOH, and the entire crystal showed
the green emission after ~15 min. The resulting crystal was denoted as 3G re /MeOH
(Figs. 5.7 and 5.8).
5.7.5 Data for Single Crystal X-ray Structural Analyses
Single-crystal X-ray diffraction (XRD) analyses were carried out on a Rigaku XtaLAB PRO MM007 diffractometer using graphite monochromated Mo-K α radiation.
Structures were solved by direct methods and expanded using Fourier techniques.
All non-hydrogen atoms were refined anisotropically. Hydrogen atoms were refined
using the riding model. All calculations were performed using the CrystalStructure
crystallographic software package except for the refinements, which were performed
using SHELXT [11].
Single crystals of 3G/MeOH were prepared by recrystallization. After conducting
the single-crystal diffraction measurements on a crystal of 3G/MeOH (A in Fig. 5.9),
this crystal and another 3G/MeOH crystal (B) were cut in the same petri dish containing a low concentration of MeOH vapor at 22 °C (cf. Figs. 5.7 and 5.9) to obtain
crystals of 3O scsc (A
and B
). For the single-crystal XRD measurements of 3O scsc ,
crystal A
(Fig. 5.9) was used. Subsequently, the MeOH concentration was increased
by putting a lid on the petri dish to induce the phase transition of the 3O scsc crystals to the 3G re /MeOH crystals (cf. Figs. 5.7 and 5.9). For the single-crystal XRD
measurement of 3G re /MeOH, crystal B
, obtained from the sequential SCSC phase
transitions B → B
→ B
, was used (Figs. 5.9, 5.10, 5.11, 5.12 and 5.13).
5.7.6 1 H NMR Spectra of 3G/MeOH and 3O
See Fig. 5.14.
5 Mechanical-Stimulation-Triggered and Solvent-Vapor-Induced …
Fig. 5.9 Schematic representation of the crystals of 3 that were used for the single-crystal XRD
measurements upon mechanical-force-induced and MeOH-vapor-induced SCSC phase transitions
to orange. The entire crystal exhibited the orange emission after ~40 min (3O SCSC ).
Remarkably, when the petri dish was covered with a lid, the orange emission color of
3O SCSC changed to green, similar to that of 3G/MeOH, and the entire crystal showed
the green emission after ~15 min. The resulting crystal was denoted as 3G re /MeOH
(Figs. 5.7 and 5.8).
5.7.5 Data for Single Crystal X-ray Structural Analyses
Single-crystal X-ray diffraction (XRD) analyses were carried out on a Rigaku XtaLAB PRO MM007 diffractometer using graphite monochromated Mo-K α radiation.
Structures were solved by direct methods and expanded using Fourier techniques.
All non-hydrogen atoms were refined anisotropically. Hydrogen atoms were refined
using the riding model. All calculations were performed using the CrystalStructure
crystallographic software package except for the refinements, which were performed
using SHELXT [11].
Single crystals of 3G/MeOH were prepared by recrystallization. After conducting
the single-crystal diffraction measurements on a crystal of 3G/MeOH (A in Fig. 5.9),
this crystal and another 3G/MeOH crystal (B) were cut in the same petri dish containing a low concentration of MeOH vapor at 22 °C (cf. Figs. 5.7 and 5.9) to obtain
crystals of 3O scsc (A
and B
). For the single-crystal XRD measurements of 3O scsc ,
crystal A
(Fig. 5.9) was used. Subsequently, the MeOH concentration was increased
by putting a lid on the petri dish to induce the phase transition of the 3O scsc crystals to the 3G re /MeOH crystals (cf. Figs. 5.7 and 5.9). For the single-crystal XRD
measurement of 3G re /MeOH, crystal B
, obtained from the sequential SCSC phase
transitions B → B
→ B
, was used (Figs. 5.9, 5.10, 5.11, 5.12 and 5.13).
5.7.6 1 H NMR Spectra of 3G/MeOH and 3O
See Fig. 5.14.