sp3 sp sp2 What is the hybridization around C in each compound above ?

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Presentation transcript:

sp3 sp sp2 What is the hybridization around C in each compound above ? Geometries of ethane, ethene and ethyne compared Ethane ethene ethyne (ethylene) (acetylene) sp3 sp sp2 What is the hybridization around C in each compound above ?

x y  Bond  bonds z  Bond (sp hybrid= hotdog) Unpaired p orbitals Alkyne Bonding in pictures: the double bun hot dog picture  Bond  bonds  Bond (sp hybrid= hotdog)  Bonds (the buns) formed when unpaired p orbitals smear across space between adjacent C and overlap Unpaired p orbitals y HC z CH x The buns The hot dog Details of how electronic structure of ethyne forms

COMPARISION OF HYDROCARBON PROPERTIES functional group formula C-C bond length hybridization average bond energy* reactivity n=2 boiling point alkanes CnH2n+2 15 nm sp3 368 kJ low -88 oC alkenes CnH2n 13 sp2 305 high -103 alkynes CnH2n-2 12 sp 273 YIKES -82 Alkanes + ozone  no reaction  Alkenes + ozone  BOOM  Alkynes + ozone  BOOM FYI…acetylene is the second most easily detonated gas known (right after H2)

Alkynes get around….. =1,3,5,7-tetranonyne found out here…