Gas sorption and luminescence properties of activated forms of a cd(II)-coordination polymer. Issue 13 (3rd July 2021)

• Record Type: Journal Article
• Authors: , Somnath; Tyagi, Lovely; Singh, Ravindra; Lama, Prem; Siddiqui, Kafeel Ahmad
• Is Part Of: Journal of coordination chemistry. Volume 74:Issue 13(2021)
• Page Start: 2227
• Page End: 2238
• Publication Date: 2021-07-03
• Subjects: Cadmium(II) coordination polymer -- gas sorption properties -- photoluminescence; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2021.1950699
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: Variable-temperature powder X-ray diffraction (VT-PXRD) and thermal stability were used to characterize the coordination polymer {[Cd(HBTC)(BPP)]·1.5DMF·2H2 O}n (1 ). From the TGA analysis, as the complex shows stepwise desolvation, the polymer was activated at different specific temperatures to get various desolvated forms and their gas sorptions, as well as luminescence, were analyzed. Complex 1 exhibits strong fluorescent emission in the solid state with the main peak at 390 nm upon excitation at 340 nm. Abstract : UF0001 Complex 1 showed stepwise desolvation with different activated forms obtained that exhibit preferential CO2 uptake in comparison to N2 at 298 K. At 20 bar of CO2, the uptake of CO2 was almost identical for all three activated forms of 1 . It is interesting to note that activated form III consists of only metal ion and carboxylate ligand as indicated from the thermogram calculation but still the CO2 adsorption capacity was similar to that of form II . Complex 1 also shows strong photoluminescence spectra at room temperature after activation at different temperatures and it may be a good candidate for optical materials.