Alphaeco atr ft ir spectrometer

All the reagents and solvents
used for the syntheses were used as received from the commercial suppliers.
The Schiff-base ligand H₂L was synthesized following the
reported procedure.^{64 (link)} TPPO was synthesized
starting from triphenylphosphine following the reported procedure.^{65 (link)} Syntheses and manipulations of samples for all
the experiments were carried out under aerobic conditions. All the
spectroscopy studies were carried out at ambient conditions. UV–vis
spectral studies were carried out on μ(M) ethanol solutions
of the complexes using an Agilent Hewlett-Packard 8453 diode array
UV–Vis spectrometer. The ¹H and ³¹P NMR
spectral studies were carried out for the Y analogues of the complexes
in deuterated solvents (CDCl3 for 1·Y and CD3OD
for 2·Y) chloroform with a Bruker model Ascend 400
FT-NMR spectrometer. Fourier transform infrared (FT-IR) spectroscopy
studies were performed on the thin layers of neat samples with a Bruker-Alpha
Eco-ATR FT-IR spectrometer. Elemental analyses were performed on the
polycrystalline solid samples of the complexes with a Perkin–Elmer
2400 series II instrument.