Structures and Properties of trans‐1,3,3,3‐Tetrafluoro‐ propene (HFO‐1234ze) and 2,3,3,3‐Tetrafluoropropene (HFO‐1234yf) Refrigerants

Autor:	Dr. Jan Schwabedissen, Timo Glodde, Dr. Yury V. Vishnevskiy, Dr. Hans‐Georg Stammler, Lukas Flierl, Prof. Dr. Andreas J. Kornath, Prof. Dr. Norbert W. Mitzel
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	refrigerants high-angle X-ray diffraction vibrational spectra matrix isolation combustion analysis Chemistry QD1-999
Zdroj:	ChemistryOpen, Vol 9, Iss 9, Pp 921-928 (2020)
Druh dokumentu:	article
ISSN:	2191-1363
DOI:	10.1002/open.202000172
Popis:	Abstract The refrigerant trans‐1,3,3,3‐tetrafluoropropene (HFO‐1234ze) is used as a replacement for former cooling agents that have been phased‐out due to their global warming potential or ozone depleting potential. Although it is used on a large scale, only a few vibrational data and no structural data of HFO‐1234ze are known. We report structure determinations based on low‐temperature single‐crystal X‐ray diffraction data as well as gas‐phase diffraction data of HFO‐1234ze and HFO‐1234yf (2,3,3,3‐tetrafluoropropene). Furthermore, vibrational spectra of HFO‐1234ze in all phases are described. The results are discussed together with quantum‐chemical calculations on the PBE0/cc‐pVTZ level of theory. Combustion experiments of HFO‐1234ze show carbonyl difluoride, carbon dioxide and hydrogen fluoride to be the main combustion products.
Databáze:	Directory of Open Access Journals
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