Analytical Methods
FT-IR Spectroscopy
FT-IR analysis was performed using a ZnSe 45ATR
(attenuated total reflectance) crystal with a Smart ARK
accessory on a Nicolet 6700 FT-IR Spectrometer equipped
with a DLaTGS detector with a KBr Window. The samples
were placed on the ZnSe ATR crystal and pressed with a
gripper so as to achieve a uniform contact with the crystal.
The spectrometer was programmed with Omnic Software,
Version 7.3, to collect spectra over the wave number range
of 4000 to 650 cm1.