bond type |
Species |
Name |
Length |
Comment |
rC=C |
C2 |
Carbon diatomic |
1.243 |
re |
rC=C |
C3O2 |
Carbon suboxide |
1.251 |
crystal structure |
rC=C |
C2H2+ |
acetylene cation |
1.253 |
rz |
rC=C |
C3 |
carbon trimer |
1.277 |
|
rC=C |
F2CCCF2 |
tetrafluoroallene |
1.282 |
|
rC=C |
H2CCCCH2 |
Butatriene |
1.283 |
|
rC=C |
C3H4 |
cyclopropene |
1.296 |
|
rC=C |
C4H6 |
1-Methylcyclopropene |
1.300 |
!assumed |
rC=C |
CH2CCHCH3 |
1,2-Butadiene |
1.301 |
|
rC=C |
C2H2CO |
cyclopropenone |
1.302 |
|
rC=C |
C4 |
Carbon tetramer |
1.304 |
assumed all CC bonds equal |
rC=C |
C3H4O |
Methylketene |
1.306 |
|
rC=C |
CH2CCH2 |
allene |
1.308 |
|
rC=C |
C2F4 |
Tetrafluoroethylene |
1.311 |
|
rC=C |
CH2CO |
Ketene |
1.314 |
|
rC=C |
CH2CCHCH3 |
1,2-Butadiene |
1.314 |
from end |
rC=C |
CH2CS |
Thioketene |
1.314 |
|
rC=C |
C2H3 |
vinyl |
1.316 |
|
rC=C |
CHClCHCl |
Ethene, 1,2-dichloro-, (Z)- |
1.317 |
|
rC=C |
H2CCCCH2 |
Butatriene |
1.318 |
|
rC=C |
C2H2F2 |
Ethene, 1,2-difluoro-, (Z)- |
1.324 |
|
rC=C |
CH2CCl2 |
Ethene, 1,1-dichloro- |
1.324 |
|
rC=C |
CH2CHOH |
ethenol |
1.326 |
|
rC=C |
C2H2ClF |
1-chloro-1-fluoroethylene |
1.327 |
|
rC=C |
C2H2F2 |
Ethene, 1,2-difluoro-, (E)- |
1.329 |
|
rC=C |
CH2CHF |
Ethene, fluoro- |
1.329 |
|
rC=C |
C3F6 |
hexafluoropropene |
1.329 |
held equal to rC-F |
rC=C |
CH2C(CH3)CH3 |
1-Propene, 2-methyl- |
1.330 |
|
rC=C |
CH2C(CH3)OCH3 |
1-Propene, 2-methoxy- |
1.330 |
|
rC=C |
C6H6 |
Trimethylenecycopropane |
1.330 |
|
rC=C |
C5H8 |
Cyclobutane, methylene- |
1.331 |
|
rC=C |
C3H2O3 |
vinylene carbonate |
1.331 |
|
rC=C |
C6H8 |
Bicyclo[2.1.1]hex-2-ene |
1.332 |
|
rC=C |
C4H6 |
Methylenecyclopropane |
1.332 |
|
rC=C |
C4H2O3 |
Maleic Anhydride |
1.332 |
|
rC=C |
C2H3Cl |
Ethene, chloro- |
1.332 |
|
rC=C |
C2H3Br |
vinyl bromide |
1.332 |
|
rC=C |
CH2CHCH2F |
Allyl Fluoride |
1.333 |
|
rC=C |
C5H10 |
2-Pentene, (E)- |
1.334 |
|
rC=C |
C5H8 |
Ethenylcyclopropane |
1.334 |
|
rC=C |
C2H3NO |
Nitrosoethylene |
1.335 |
|
rC=C |
C4F6 |
perfluorobutadiene |
1.336 |
|
rC=C |
C4H5N |
(E)-2-Butenenitrile |
1.336 |
!assumed |
rC=C |
C5H6 |
1-Buten-3-yne, 2-methyl- |
1.336 |
!assumed |
rC=C |
C7H8 |
Norbornadiene |
1.336 |
|
rC=C |
C3H6O |
2-Propen-1-ol |
1.337 |
|
rC=C |
CHClCCl2 |
Trichloroethylene |
1.337 |
|
rC=C |
CH2CHOCHCH2 |
Vinyl ether |
1.337 |
average |
rC=C |
CH2CHCHCH2 |
1,3-Butadiene |
1.337 |
|
rC=C |
CH2CHCHClCH3 |
1-Butene, 3-chloro- |
1.337 |
|
rC=C |
C6H8 |
(Z)-hexa-1,3,5-triene |
1.337 |
end = |
rC=C |
C8H8 |
cyclooctatetraene |
1.337 |
re |
rC=C |
C5H10 |
2-Pentene, (Z)- |
1.338 |
|
rC=C |
C6H8 |
Bicyclo[3.1.0]hex-2-ene |
1.338 |
|
rC=C |
C5H8O |
2H-Pyran, 3,4-dihydro- |
1.338 |
!assumed |
rC=C |
C3H3N |
acrylonitrile |
1.339 |
|
rC=C |
CH2CHCHO |
Acrolein |
1.339 |
|
rC=C |
C2H4 |
Ethylene |
1.339 |
|
rC=C |
C6H6 |
Benzvalene |
1.339 |
|
rC=C |
C5H8 |
1,4-Pentadiene |
1.339 |
|
rC=C |
CH2CHCH2CH2Cl |
1-Butene, 4-chloro- |
1.339 |
|
rC=C |
C4H6S |
Thiophene, 2,5-dihydro- |
1.340 |
|
rC=C |
C5H6 |
1,3-Cyclopentadiene |
1.340 |
|
rC=C |
C4H4N2O2 |
Uracil |
1.340 |
|
rC=C |
CH2CF2 |
Ethene, 1,1-difluoro- |
1.340 |
|
rC=C |
C5H8 |
1,3-Butadiene, 2-methyl- |
1.340 |
|
rC=C |
C6H10 |
cyclohexene |
1.340 |
|
rC=C |
CH2CHCHO |
Acrolein |
1.341 |
|
rC=C |
C2HF3 |
Trifluoroethylene |
1.341 |
|
rC=C |
C5H4O2 |
4-Cyclopentene-1,3-dione |
1.341 |
|
rC=C |
C4H6 |
Cyclobutene |
1.342 |
|
rC=C |
CH2ClCHCHCH3 |
2-Butene, 1-chloro- |
1.342 |
|
rC=C |
CH2CHCH2CH3 |
1-Butene |
1.342 |
|
rC=C |
CH2CClCHCH2 |
1,3-Butadiene, 2-chloro- |
1.344 |
|
rC=C |
CH2CClCHCH2 |
1,3-Butadiene, 2-chloro- |
1.344 |
|
rC=C |
C2H3CCH |
1-Buten-3-yne |
1.344 |
|
rC=C |
CF2CCl2 |
difluorodichloroethylene |
1.345 |
|
rC=C |
CHOCHCHCH3 |
2-Butenal |
1.345 |
!assumed |
rC=C |
C10H10 |
bullvalene |
1.346 |
|
rC=C |
CH3CHCHCH3 |
2-Butene, (Z)- |
1.346 |
|
rC=C |
C6H8 |
1,4-Cyclohexadiene |
1.347 |
|
rC=C |
CH3CHCHCH3 |
2-Butene, (E)- |
1.347 |
|
rC=C |
C4H6O |
Furan, 2,5-dihydro- |
1.347 |
|
rC=C |
C6H6 |
Fulvene |
1.349 |
out of ring |
rC=C |
C6H8 |
1,3-Cyclohexadiene |
1.349 |
|
rC=C |
C6H12 |
(E)-3-methylpent-2-ene |
1.349 |
|
rC=C |
C5H8 |
Cyclopentene |
1.350 |
!assumed |
rC=C |
CH2CHCH2F |
Allyl Fluoride |
1.350 |
|
rC=C |
C3H3NO |
Oxazole |
1.353 |
|
rC=C |
C6H12 |
2,3-dimethyl-but-2-ene |
1.353 |
|
rC=C |
CH2CHCH3 |
Propene |
1.353 |
|
rC=C |
C2Cl4 |
Tetrachloroethylene |
1.354 |
|
rC=C |
CHClCHCl |
Ethene, 1,2-dichloro-, (E)- |
1.354 |
|
rC=C |
C6H6 |
Fulvene |
1.355 |
in ring |
rC=C |
C3H3NO |
Isoxazole |
1.356 |
|
rC=C |
C4H4O |
Furan |
1.361 |
|
rC=C |
C4H5NO |
Isoxazole, 5-methyl- |
1.362 |
!assumed |
rC=C |
C4H5NO |
3-Methylisoxazole |
1.362 |
!assumed |
rC=C |
C3H4N2 |
1H-Imidazole |
1.364 |
|
rC=C |
C6H8 |
(Z)-hexa-1,3,5-triene |
1.368 |
center = |
rC=C |
C4H4Se |
selenophene |
1.370 |
|
rC=C |
C4H4S |
Thiophene |
1.370 |
|
rC=C |
C5H6S |
Thiophene, 3-methyl- |
1.370 |
!assumed |
rC=C |
C3H4N2 |
1H-Pyrazole |
1.374 |
|
rC=C |
C4H5N |
Pyrrole |
1.382 |
|
|
Average |
1.334 |
±0.024 |
Min |
1.243 |
Max |
1.382 |