Variable-temperature IR studies were performed on 1 in the temperature range of 300-120 K (Figure , Figure ) and 300-400 K (Figure Gas adsorption studies. N2 adsorption studies were performed on the desolvated sample 1.des at 77 K to understand the nature of porosity of the sample. It was seen that 1.des follows a Type II adsorption isotherm (Figure ) indicating that the sample is mesoporous (with a mean pore diameter of 102.76 nm and average surface area of 3.3679 m 2 g -1 (BET Plot)), therefore, mainly surface adsorption takes place.