1H and 13C NMR spectra were recorded on a JEOL ECX NMR spectrometer. FTIR
spectra of neat samples were recorded on a Carry-660 spectrophotometer.
HRMS-electrospray ionization (ESI) spectra were recorded on a Bruker
maXis impact HD instrument. UV–vis and fluorescence spectra
were recorded on a Shimadzu UV-2450 and a Cary Eclipse spectrophotometer,
respectively. Solid-state emission was recorded by preparing a thin
film of compounds on a quartz plate using the drop-cast method. Solvents
and chemicals were purchased from commercial sources and used without
further purification. Spectroscopic grade solvents were used for photophysical
studies. Melting points were recorded using a Stuart melting point
instrument. TGA was performed on a PerkinElmer Pyris 1 and NETZSCH
STA449 F1 Jupiter instrument under a nitrogen atmosphere at a heating
rate of 10 °C per minute. The temperature of degradation (Td) was correlated with a 5% weight loss. SC-XRD
studies were performed on an Agilent Technologies X-ray diffractometer.
3D structure visualization and exploration of crystal packing were
done using Mercury software. The absolute quantum yields (both solid
and solution state) were calculated using an integrating sphere on
a Fluorolog instrument (Horiba Scientific). DCM solutions of compounds
were used to calculate the absolute quantum yield. The lifetime data
were measured on an Agilent lifetime instrument.
spectra of neat samples were recorded on a Carry-660 spectrophotometer.
HRMS-electrospray ionization (ESI) spectra were recorded on a Bruker
maXis impact HD instrument. UV–vis and fluorescence spectra
were recorded on a Shimadzu UV-2450 and a Cary Eclipse spectrophotometer,
respectively. Solid-state emission was recorded by preparing a thin
film of compounds on a quartz plate using the drop-cast method. Solvents
and chemicals were purchased from commercial sources and used without
further purification. Spectroscopic grade solvents were used for photophysical
studies. Melting points were recorded using a Stuart melting point
instrument. TGA was performed on a PerkinElmer Pyris 1 and NETZSCH
STA449 F1 Jupiter instrument under a nitrogen atmosphere at a heating
rate of 10 °C per minute. The temperature of degradation (Td) was correlated with a 5% weight loss. SC-XRD
studies were performed on an Agilent Technologies X-ray diffractometer.
3D structure visualization and exploration of crystal packing were
done using Mercury software. The absolute quantum yields (both solid
and solution state) were calculated using an integrating sphere on
a Fluorolog instrument (Horiba Scientific). DCM solutions of compounds
were used to calculate the absolute quantum yield. The lifetime data
were measured on an Agilent lifetime instrument.