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List of experimental bond angles of type aHC=C

Bond angles in degrees.
Click on an entry for more experimental geometry data.
Bond type Species Name Angle Comment
aHC=C C3H4O Methylketene 113.70
aHC=C CH2CHOCHCH2 Vinyl ether 115.00 average
aHC=C CH2CHCH2CH3 1-Butene 117.10 middle C has =
aHC=C C5H8 1,4-Pentadiene 117.30 from end
aHC=C C8H8 cyclooctatetraene 117.70 ae
aHC=C CH2CHCHO Acrolein 118.50
aHC=C C2H3CCH 1-Buten-3-yne 118.70
aHC=C C5H4O2 4-Cyclopentene-1,3-dione 118.70
aHC=C CH2CO Ketene 118.72 by symmetry
aHC=C C4H5N (E)-2-Butenenitrile 119.00 !assumed, H is attached to C=, away from N
aHC=C CH2CHCH2CH2Cl 1-Butene, 4-chloro- 119.00 from end
aHC=C CH2CF2 Ethene, 1,1-difluoro- 119.00
aHC=C CH2CHF Ethene, fluoro- 119.00 H trans to F
aHC=C C2H2ClF 1-chloro-1-fluoroethylene 119.18 Cl side
aHC=C C2H2ClF 1-chloro-1-fluoroethylene 119.25 F side
aHC=C C2H3Cl Ethene, chloro- 119.50 H trans to Cl
aHC=C C6H10 cyclohexene 119.50
aHC=C C5H8 Ethenylcyclopropane 119.70 !assumed
aHC=C C3H6O 2-Propen-1-ol 119.80 outside H
aHC=C CH2CHCHO Acrolein 119.80
aHC=C CH2CCl2 Ethene, 1,1-dichloro- 120.00 by symmetry
aHC=C C5H8 Cyclobutane, methylene- 120.00 !assumed
aHC=C CH2ClCHCHCH3 2-Butene, 1-chloro- 120.00
aHC=C C2H3NO Nitrosoethylene 120.00
aHC=C C5H6 1-Buten-3-yne, 2-methyl- 120.50 !assumed
aHC=C CH2C(CH3)CH3 1-Propene, 2-methyl- 120.75 by symmetry
aHC=C CH2CHF Ethene, fluoro- 120.90 H from cis to F
aHC=C CH2CCH2 allene 120.90 by symmetry
aHC=C C3H5 Allyl radical 120.90 middle C - C - H
aHC=C CH2CHCH2CH2Cl 1-Butene, 4-chloro- 121.00 towards end
aHC=C C2H3Cl Ethene, chloro- 121.00 H cis to Cl
aHC=C C3H6O 2-Propen-1-ol 121.00 towards end C
aHC=C C2H4 Ethylene 121.20
aHC=C CH2C(CH3)OCH3 1-Propene, 2-methoxy- 121.40
aHC=C C5H6 1-Buten-3-yne, 2-methyl- 121.50 !assumed
aHC=C CH2CHCH2CH2Cl 1-Butene, 4-chloro- 121.50 towards end
aHC=C C2H3 vinyl 121.50
aHC=C C4H5N (E)-2-Butenenitrile 121.50 !assumed
aHC=C H2CCCCH2 Butatriene 121.50 by symmetry
aHC=C C2H3CCH 1-Buten-3-yne 121.60
aHC=C CH2CHCHO Acrolein 121.60
aHC=C C3H3N acrylonitrile 121.70
aHC=C C2H3CCH 1-Buten-3-yne 121.70
aHC=C C4H6S Thiophene, 2,5-dihydro- 121.75
aHC=C C3H6O 2-Propen-1-ol 122.00 outside H
aHC=C CH2CHCHO Acrolein 122.20
aHC=C CHOCHCHCH3 2-Butenal 122.83 !assumed
aHC=C C4H6 Methylenecyclopropane 122.85 by symmetry
aHC=C CHClCHCl Ethene, 1,2-dichloro-, (Z)- 123.18
aHC=C C5H8 1,4-Pentadiene 123.20 to end
aHC=C C5H8 1,3-Butadiene, 2-methyl- 123.40 to CH group from end
aHC=C C2H3Cl Ethene, chloro- 123.80 H on CHCl end
aHC=C C5H10 2-Pentene, (Z)- 124.00
aHC=C C2HF3 Trifluoroethylene 124.00
aHC=C C2H2F2 Ethene, 1,2-difluoro-, (Z)- 124.00
aHC=C C5H8 1,3-Butadiene, 2-methyl- 124.30 to CH2 groups
aHC=C C4H4S Thiophene 124.30
aHC=C C6H6 Fulvene 126.39
aHC=C C4H5N Pyrrole 127.10
aHC=C C7H8 Norbornadiene 127.84
aHC=C C4H4O Furan 127.90
aHC=C C4H5N Pyrrole 128.20 by symmetry
aHC=C C3H3NO Isoxazole 128.50 going away from O
aHC=C C4H4S Thiophene 128.60 by symmetry
aHC=C C6H8 Bicyclo[3.1.0]hex-2-ene 128.90 assumed
aHC=C C5H10 2-Pentene, (E)- 129.00
aHC=C C3H3NO Oxazole 129.10 towards N
aHC=C CH2CHF Ethene, fluoro- 129.20 from symmetry
aHC=C C4H2O3 Maleic Anhydride 129.70 assumed
aHC=C C4H5N Pyrrole 130.80 by symmetry
aHC=C C4H4O Furan 133.40 by symmetry
aHC=C C3H3NO Isoxazole 133.40
aHC=C C4H6 Cyclobutene 133.50
aHC=C C4H6O Furan, 2,5-dihydro- 134.80
aHC=C C3H3NO Oxazole 135.00 away from N
aHC=C C3H4 cyclopropene 149.85
aHC=C C4H6 1-Methylcyclopropene 150.00 !assumed
Average 123.62 ±6.31
Min 113.70
Max 150.00