2. Experimental
The solid phase FT-IR spectrum was recorded in the region 4000e400 cm1 in evacuation mode on Bruker IFS 66 V spectrometer using a KBr pellet technique with 4.0 cm1 resolution. The FT-Raman spectrum was recorded using 1064 nm line of Nd: YAG laser as the excitation wavelength in the region 4000e50 cm on Bruker IFS 66V spectrometer equipped with FRA 106 Raman module was used as an accessory. The UV visible spectral measurements were carried out in the range 200e800 nm is using a Varian Cary 5E-UV-NIR spectrophotometer. NMR chemical shifts were recorded in BRUKER 400 MHZ NMR spectrometer and solvent used for the sample DMSO. The spectral measurements were carried
out at the Sophisticated Analysis Instrumentation Facility
(SAIF), IIT Madras, India.