naa a22 4500 510819494 CHVBK 20180411083524.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11814-013-0093-9 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0093-9 Supramolecular recognition of functional magnesium tetraphenylporphyrin with pyrrolidine for SO2 capture [Elektronische Daten] [Fei Gao, Tianrui Huo] Supramolecular recognition of functional magnesium tetraphenylporphyrin (MgTPP) with pyrrolidine for SO2 capture was investigated in CH2Cl2 by steady-state fluorescence and UV-vis absorption spectroscopic techniques. The UV-vis spectra showed that the interaction of MgTPP with pyrrolidine resulted in red shift of 2 nm for MgTPP Soret absorption band. Once introduced, SO2 competes with MgTPP for pyrrolidine, which eventually leads to the release of MgTPP. The fluorescence spectra suggested that MgTPP interacted with pyrrolidine to form 1: 1 molecular adducts, and showed that the binding of MgTPP with pyrrolidine with the association constants (Kassoc) of (0.86 to 1.19) is not only exothermic but enthalpy-driven with ΔH=−15.805 kJ mol−1, ΔS=−52.727 J mol−1 K1, and ΔG=−214.444 J mol−1 at T=296.15 K. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Magnesium Tetraphenyl Porphyrin (MgTPP) nationallicence Pyrrolidine nationallicence Spectroscopy nationallicence Thermodynamic nationallicence Gao Fei College of Chemical Engineering, Inner Mongolia University of Technology, 010051, Huhhot, China aut Huo Tianrui College of Chemical Engineering, Inner Mongolia University of Technology, 010051, Huhhot, China aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/9(2013-09-01), 1747-1750 0256-1115 30:9<1747 2013 30 11814 https://doi.org/10.1007/s11814-013-0093-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0093-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gao Fei College of Chemical Engineering, Inner Mongolia University of Technology, 010051, Huhhot, China aut NATIONALLICENCE 700 1- Huo Tianrui College of Chemical Engineering, Inner Mongolia University of Technology, 010051, Huhhot, China aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/9(2013-09-01), 1747-1750 0256-1115 30:9<1747 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer