Editing Propylene (section)

==Occurrence in nature==
Propene is detected in the [[interstellar medium]] through microwave spectroscopy.<ref>{{cite journal|title=Discovery of Interstellar Propylene (CH2CHCH3): Missing Links in Interstellar Gas-Phase Chemistry |publisher=IOP |date=2007-08-10 |doi=10.1086/521398 |last1=Marcelino |first1=N. |last2=Cernicharo |first2=J. |last3=Agúndez |first3=M. |last4=Roueff |first4=E. |last5=Gerin |first5=M. |last6=Martín-Pintado |first6=J. |last7=Mauersberger |first7=R. |last8=Thum |first8=C. |display-authors=3|journal=The Astrophysical Journal |volume=665 |issue=2 |pages=L127–L130 |arxiv=0707.1308 |bibcode=2007ApJ...665L.127M |s2cid=15832967 |doi-access=free }}</ref> On September 30, 2013, [[NASA]] announced the detection of small amounts of naturally occurring propene in the atmosphere of [[Titan (moon)|Titan]] using infrared spectroscopy.<ref>{{cite web |date=2013-09-30 |title=Spacecraft finds propylene on Saturn moon, Titan |url=http://www.upi.com/Science_News/2013/09/30/Cassini-finds-ingredient-of-household-plastic-on-Saturn-moon/UPI-42881380571911/ |access-date=2013-11-12 |publisher=UPI.com}}</ref><ref>{{cite web |title=Cassini finds ingredient of household plastic on Saturn moon |url=http://www.spacedaily.com/reports/Cassini_finds_ingredient_of_household_plastic_on_Saturn_moon_999.html |access-date=2013-11-12 |publisher=Spacedaily.com}}</ref><ref>{{Cite journal |last1=Nixon |first1=C. A. |last2=Jennings |first2=D. E. |last3=Bézard |first3=B. |last4=Vinatier |first4=S. |last5=Teanby |first5=N. A. |last6=Sung |first6=K. |last7=Ansty |first7=T. M. |last8=Irwin |first8=P. G. J. |last9=Gorius |first9=N. |last10=Cottini |first10=V. |last11=Coustenis |first11=A. |last12=Flasar |first12=F. M. |date=2013-09-30 |title=Detection of Propene in Titan's Stratosphere |url=https://iopscience.iop.org/article/10.1088/2041-8205/776/1/L14 |journal=The Astrophysical Journal |volume=776 |issue=1 |pages=L14 |doi=10.1088/2041-8205/776/1/L14 |issn=2041-8205|arxiv=1309.4489 |bibcode=2013ApJ...776L..14N }}</ref> The detection was made by a team led by [[Goddard Space Flight Center|NASA GSFC]] scientist [[Conor Nixon]] using data from the [[Visual and Infrared Mapping Spectrometer|CIRS]] instrument <ref>{{Citation |last1=Flasar |first1=F. M. |title=Exploring the Saturn System in the Thermal Infrared: The Composite Infrared Spectrometer |date=2004 |work=The Cassini-Huygens Mission: Orbiter Remote Sensing Investigations |pages=169–297 |editor-last=Russell |editor-first=Christopher T. |url=https://link.springer.com/chapter/10.1007/1-4020-3874-7_4 |access-date=2025-01-05 |place=Dordrecht |publisher=Springer Netherlands |language=en |doi=10.1007/1-4020-3874-7_4 |isbn=978-1-4020-3874-7 |last2=Kunde |first2=V. G. |last3=Abbas |first3=M. M. |last4=Achterberg |first4=R. K. |last5=Ade |first5=P. |last6=Barucci |first6=A. |last7=Bézard |first7=B. |last8=Bjoraker |first8=G. L. |last9=Brasunas |first9=J. C.|bibcode=2004chm..book..169F |url-access=subscription }}</ref><ref>{{Cite journal |last1=Jennings |first1=D. E. |last2=Flasar |first2=F. M. |last3=Kunde |first3=V. G. |last4=Nixon |first4=C. A. |last5=Segura |first5=M. E. |last6=Romani |first6=P. N. |last7=Gorius |first7=N. |last8=Albright |first8=S. |last9=Brasunas |first9=J. C. |last10=Carlson |first10=R. C. |last11=Mamoutkine |first11=A. A. |last12=Guandique |first12=E. |last13=Kaelberer |first13=M. S. |last14=Aslam |first14=S. |last15=Achterberg |first15=R. K. |date=2017-06-20 |title=Composite infrared spectrometer (CIRS) on Cassini |url=https://opg.optica.org/ao/abstract.cfm?uri=ao-56-18-5274 |journal=Applied Optics |language=EN |volume=56 |issue=18 |pages=5274–5294 |doi=10.1364/AO.56.005274 |pmid=29047582 |bibcode=2017ApOpt..56.5274J |issn=2155-3165}}</ref> on the Cassini orbiter spacecraft, part of the [[Cassini-Huygens]] mission. Its confirmation solved a 32-year old mystery by filling a predicted gap in Titan's detected [[hydrocarbon]]s, adding the C<sub>3</sub>H<sub>6</sub> species (propene) to the already-detected C<sub>3</sub>H<sub>4</sub> ([[propyne]]) and C<sub>3</sub>H<sub>8</sub> ([[propane]]).<ref>{{Cite journal |last1=Maguire |first1=W. C. |last2=Hanel |first2=R. A. |last3=Jennings |first3=D. E. |last4=Kunde |first4=V. G. |last5=Samuelson |first5=R. E. |date=August 1981 |title=C3H8 and C3H4 in Titan's atmosphere |url=https://www.nature.com/articles/292683a0 |journal=Nature |language=en |volume=292 |issue=5825 |pages=683–686 |doi=10.1038/292683a0 |issn=1476-4687}}</ref>