Spectrum 1600 series ft ir spectrometer

All reactions were performed in open air with a stopper and oven-dried glassware. All commercial reagents were ACS grade and were used without further purification. NMR spectra were recorded on a Varian Inova 500 MHz NMR spectrophotometer (¹H NMR and ¹³C NMR; Palo Alto, CA, USA) and Bruker 400 MHz NMR spectrophotometer (¹H NMR and ¹³C NMR; Billerica, MA, USA). Melting points were determined in an open capillary tube with a Mel-temp II melting point apparatus. Infrared spectra were recorded on PerkinElmer Spectrum 1600 series FT-IR spectrometer (Waltham, MA, USA).

All reactions were performed in
open air with a stopper and oven-dried glassware. All commercial reagents
were of ACS grade and were used without further purification. NMR
spectra were recorded using an Oxford 500 and 300 MHz and a Bruker
400 MHz NMR spectrophotometer (¹H NMR, ¹³C NMR,
and ¹⁹F NMR). Chemical shifts are reported in parts per
million (ppm). Melting points were determined in an open capillary
tube with a Mel-Temp II melting point apparatus. Infrared spectra
were recorded on a PerkinElmer Spectrum 1600 series FT-IR spectrometer.
X-ray crystal analysis was performed by Rigaku RAPID II XRD Image
Plate using graphite-monochromated Cu or Mo Kα radiation (λ
= 1.54187 or 0.71073 Å) at 125 or 173 K. See the CIF file for
more detailed crystallography information. 2′-Bromo-[1,1′-biphenyl]-2-amine 5 and 2′-chloro-[1,1′-biphenyl]-2-amine 6 were prepared according to the reported procedures.^2a