Maxis hd esi qtof

NMR spectra were obtained
using a 500 MHz Bruker Avance III at 25 °C unless stated otherwise.
Chemical shifts (δ) are given in ppm and referenced to residual
proton chemical shifts from the NMR solvent for ¹H and ¹³C{¹H} spectra. UV–vis spectroscopy was
performed inside a MBraun Unilab Plus glovebox using a fiber-optic
AvaSpec-2048L photospectrometer with an AvaLight-DH-S-BAL light source
and 400 μm cables (Avantes). Data was collected between 250
and 1000 nm with an integration time of 4 ms.
Single-crystal
X-ray diffraction analysis was carried out using a RIGAKU SuperNova,
Dual,Cu a zero EoS2 single-crystal diffractometer. Mass spectrometry
was carried out at the Material and Chemical Characterization Facility
at the University of Bath using a Bruker MaXis HD ESI-QTOF.

NMR spectroscopy was conducted
using a 400 or 500 MHz instrument at 25 °C. Chemical shifts (δ)
are reported in ppm relative to the residual proton chemical shifts
of the deuterated solvent used (¹H and ¹³C{¹H}) or relative to external standards (BF₃·Et₂O for ¹⁹F{¹H}). Mass spectrometry (Agilent
6545 QTOF or Bruker MaXis HD ESI-QTOF) was carried out at the Material
and Chemical Characterization Facility at the University of Bath.
Melting points were determined using an Electrothermal IA9300 Digital
Melting Point Apparatus. UV–vis spectroscopy was conducted
using an Avantes AvaLight-DH-S-BAL light source with an AvaSpec-2048
L photospectrometer using 400 μm fiber-optic cables.