| Species |
Name |
Bond Length (Å) |
Atom1 index |
Atom2 index |
| C2 |
Carbon diatomic |
1.254 |
1 |
2 |
| C2+ |
carbon diatomic cation |
1.414 |
1 |
2 |
| C2H- |
Ethynyl anion |
1.254 |
1 |
2 |
| C2H |
Ethynyl radical |
1.214 |
1 |
2 |
| C2H+ |
Ethynyl cation |
1.262 |
1 |
2 |
| C2H2 |
Acetylene |
1.210 |
1 |
2 |
| C2H2+ |
acetylene cation |
1.255 |
1 |
2 |
| C2H3- |
vinyl anion |
1.366 |
1 |
2 |
| C2H3 |
vinyl |
1.316 |
1 |
2 |
| C2H3+ |
vinyl cation |
1.230 |
2 |
3 |
| C2H4- |
Ethylene anion |
1.454 |
1 |
2 |
| C2H4 |
Ethylene |
1.337 |
1 |
2 |
| C2H4+ |
Ethylene cation |
1.405 |
1 |
2 |
| C2H5- |
Ethyl anion |
1.546 |
1 |
2 |
| C2H6 |
Ethane |
1.529 |
1 |
2 |
| C2H6+ |
ethane cation |
1.434 |
1 |
2 |
| C3 |
carbon trimer |
1.304 |
1 |
2 |
| |
|
1.304 |
1 |
3 |
| SiC2 |
Silicon dicarbide |
1.281 |
2 |
3 |
| CCO |
Dicarbon monoxide |
1.372 |
1 |
2 |
| HCCN |
cyanomethylene |
1.329 |
1 |
2 |
| HCCO |
ketenyl radical |
1.309 |
1 |
2 |
| HCCF |
Fluoroacetylene |
1.203 |
1 |
2 |
| HCCCl |
Chloroacetylene |
1.210 |
1 |
2 |
| HCCBr |
bromoacetylene |
1.211 |
1 |
2 |
| C2H2O |
Oxirene |
1.275 |
2 |
3 |
| CH2CO |
Ketene |
1.319 |
1 |
2 |
| HCCOH |
ethynol |
1.208 |
1 |
2 |
| CH2CS |
Thioketene |
1.317 |
1 |
2 |
| C3H3- |
Propargyl anion |
1.358 |
1 |
2 |
| |
|
1.291 |
2 |
3 |
| C3H3+ |
Propargyl cation |
1.353 |
1 |
2 |
| |
|
1.236 |
2 |
3 |
| C3H3 |
cyclopropenyl radical |
1.469 |
1 |
3 |
| |
|
1.469 |
1 |
4 |
| |
|
1.320 |
3 |
4 |
| CH3CN- |
acetonitrile anion |
1.576 |
1 |
2 |
| CH3CN |
Acetonitrile |
1.466 |
1 |
2 |
| CH3CN+ |
Acetonitrile cation |
1.414 |
1 |
2 |
| CHNCH2 |
2H-Azirine |
1.444 |
2 |
3 |
| HCNCH2+ |
2H-Azirine cation |
1.702 |
2 |
3 |
| CHNHCH |
1H-Azirine |
1.284 |
2 |
3 |
| HCCNH2 |
Ethynamine |
1.211 |
1 |
2 |
| CH3CO+ |
acetyl cation |
1.446 |
1 |
2 |
| CH2COH+ |
ketene, protonated |
1.285 |
1 |
2 |
| CH2CHF |
Ethene, fluoro- |
1.329 |
1 |
2 |
| CH3CCH |
propyne |
1.467 |
1 |
2 |
| |
|
1.212 |
2 |
3 |
| CH2CCH2 |
allene |
1.314 |
1 |
2 |
| |
|
1.314 |
1 |
3 |
| C3H4 |
cyclopropene |
1.514 |
1 |
2 |
| |
|
1.514 |
1 |
3 |
| |
|
1.301 |
2 |
3 |
| CH3CHN |
methylmethaniminyl radical |
1.514 |
1 |
2 |
| CH2CHNH |
vinylazine |
1.405 |
1 |
2 |
| CH3CHO |
Acetaldehyde |
1.506 |
1 |
2 |
| C2H4O |
Ethylene oxide |
1.468 |
2 |
3 |
| C2H4O+ |
ethylene oxide cation |
1.465 |
2 |
3 |
| C2H4S |
Thiirane |
1.486 |
2 |
3 |
| CH2CH2Cl |
2-chloroethyl radical |
1.471 |
1 |
2 |
| C3H5 |
Allyl radical |
1.388 |
1 |
3 |
| |
|
1.388 |
1 |
4 |
| C3H5+ |
Allyl cation |
1.384 |
1 |
3 |
| |
|
1.384 |
1 |
4 |
| CH3CHCH |
1-propenyl radical |
1.317 |
1 |
2 |
| |
|
1.507 |
1 |
3 |
| CH3CHNH |
ethanimine |
1.505 |
1 |
2 |
| CH3CH2O |
Ethoxy radical |
1.522 |
1 |
2 |
| CH3CHOH |
1-hydroxy-ethyl radical |
1.488 |
1 |
2 |
| CH3CHOH+ |
acetaldehyde, protonated |
1.456 |
1 |
2 |
| C2H5Br |
Ethyl bromide |
1.517 |
1 |
2 |
| C3H6 |
Cyclopropane |
1.510 |
1 |
2 |
| |
|
1.510 |
1 |
3 |
| |
|
1.510 |
2 |
3 |
| CH2CHCH3 |
Propene |
1.502 |
1 |
2 |
| |
|
1.338 |
2 |
3 |
| CH3CH2SH |
ethanethiol |
1.525 |
1 |
2 |
| CH3CHCH3 |
Isopropyl radical |
1.494 |
1 |
2 |
| |
|
1.494 |
1 |
3 |
| CH3CHCH3+ |
Isopropyl cation |
1.441 |
1 |
3 |
| |
|
1.441 |
1 |
4 |
| CH3CH2NH3+ |
ethylamine, protonated |
1.516 |
2 |
3 |
| C4 |
Carbon tetramer |
1.296 |
1 |
2 |
| |
|
1.318 |
1 |
3 |
| |
|
1.318 |
2 |
4 |
| C2N2 |
Cyanogen |
1.390 |
1 |
2 |
| C3O |
Tricarbon monoxide |
1.282 |
1 |
2 |
| C2F2 |
difluoroacetylene |
1.193 |
1 |
2 |
| C4H2 |
Diacetylene |
1.379 |
1 |
2 |
| |
|
1.215 |
1 |
3 |
| |
|
1.215 |
2 |
4 |
| HNCCNH |
Ethenediimine |
1.317 |
1 |
2 |
| C2H2O2 |
Ethanedial |
1.521 |
1 |
2 |
| C3H2O |
Propadienal |
1.337 |
1 |
2 |
| |
|
1.316 |
2 |
3 |
| CHFCHClz |
(Z)-1-Chloro-2-fluoroethene |
1.332 |
1 |
2 |
| CHFCHCl |
(E)-1-chloro-2-fluoroethene |
1.331 |
1 |
2 |
| C2H2ClF |
1-chloro-1-fluoroethylene |
1.329 |
1 |
2 |
| C3H3N+ |
acrylonitrile cation |
1.393 |
1 |
3 |
| |
|
1.406 |
3 |
5 |
| HOCH2CN |
cyanomethanol |
1.482 |
1 |
2 |
| C2H3NO |
Nitrosoethylene |
1.339 |
1 |
2 |
| CH2ClCHO |
chloroacetaldehyde |
1.517 |
1 |
2 |
| C4H4 |
cyclobutadiene |
1.573 |
1 |
2 |
| |
|
1.348 |
1 |
3 |
| |
|
1.573 |
3 |
4 |
| |
|
1.348 |
2 |
4 |
| NH2CH2CN |
Aminoacetonitrile |
1.484 |
2 |
3 |
| NH2CCNH2 |
Diaminoacetylene |
1.212 |
1 |
2 |
| CH2CHCHO |
Acrolein |
1.478 |
1 |
2 |
| |
|
1.342 |
2 |
3 |
| CH3CHF2 |
Ethane, 1,1-difluoro- |
1.504 |
1 |
2 |
| C2H4F2 |
1,2-difluoroethane |
1.505 |
1 |
2 |
| CH2ClCH2Cl |
Ethane, 1,2-dichloro- |
1.514 |
1 |
2 |
| CH2FCH2Cl |
Ethane, 1-chloro-2-fluoro- |
1.515 |
1 |
2 |
| CH2BrCH2Br |
Ethane, 1,2-dibromo- |
1.512 |
1 |
2 |
| CH2BrCH2Cl |
1-bromo-2-chloroethane |
1.513 |
1 |
2 |
| C2H5CN |
ethyl cyanide |
1.534 |
1 |
2 |
| |
|
1.471 |
2 |
3 |
| CH3CHNOH |
Acetaldoxime |
1.499 |
1 |
2 |
| CH3COCH2 |
Acetonyl radical |
1.449 |
1 |
3 |
| |
|
1.517 |
1 |
4 |
| C2H5OO |
ethylperoxy radical |
1.513 |
1 |
2 |
| CH3C(OH)=NH |
Ethaninidic acid |
1.502 |
1 |
2 |
| CH2FCH2OH |
2-fluoroethanol |
1.510 |
1 |
2 |
| CH2CHCH2F |
Allyl Fluoride |
1.498 |
1 |
2 |
| |
|
1.336 |
2 |
3 |
| CH2ClCH2OH |
2-Chloroethanol |
1.517 |
1 |
2 |
| CH2CHCHCH2 |
1,3-Butadiene |
1.474 |
1 |
2 |
| |
|
1.343 |
1 |
3 |
| |
|
1.343 |
2 |
4 |
| CHCCH2CH3 |
1-Butyne |
1.212 |
1 |
2 |
| |
|
1.470 |
2 |
3 |
| |
|
1.534 |
3 |
4 |
| C4H6 |
Bicyclo[1.1.0]butane |
1.501 |
1 |
2 |
| |
|
1.501 |
1 |
3 |
| |
|
1.501 |
2 |
3 |
| |
|
1.501 |
2 |
4 |
| |
|
1.501 |
1 |
4 |
| H2NCHCHNH2 |
diaminoethylene |
1.341 |
1 |
2 |
| CH3CH2CHO |
Propanal |
1.523 |
1 |
2 |
| |
|
1.510 |
2 |
3 |
| C3H5OH |
Cyclopropanol |
1.494 |
1 |
2 |
| |
|
1.506 |
1 |
3 |
| |
|
1.521 |
2 |
3 |
| CH3CSCH3 |
Thioacetone |
1.507 |
1 |
3 |
| |
|
1.507 |
1 |
4 |
| CH2ClCH2OH2+ |
2-chloroethanol, protonated |
1.511 |
1 |
2 |
| CH3CHCHCH2 |
methylallyl radical |
1.388 |
1 |
2 |
| |
|
1.388 |
2 |
3 |
| |
|
1.497 |
3 |
4 |
| CH3CHFCH3 |
2-Fluoropropane |
1.516 |
1 |
4 |
| |
|
1.516 |
1 |
5 |
| CH3CHClCH3 |
Propane, 2-chloro- |
1.520 |
2 |
3 |
| |
|
1.520 |
2 |
4 |
| CH2CHCH2CH3 |
1-Butene |
1.533 |
1 |
2 |
| |
|
1.503 |
2 |
3 |
| |
|
1.339 |
3 |
4 |
| C4H8 |
methylcyclopropane |
1.510 |
1 |
2 |
| |
|
1.084 |
1 |
3 |
| |
|
1.509 |
1 |
4 |
| C4H8 |
cyclobutane |
1.553 |
1 |
3 |
| |
|
1.553 |
2 |
3 |
| |
|
1.553 |
2 |
4 |
| |
|
1.553 |
1 |
4 |
| C3H7OH |
1-Propanol |
1.528 |
1 |
2 |
| |
|
1.519 |
2 |
3 |
| CH3OC2H5 |
Ethane, methoxy- |
1.516 |
3 |
4 |
| NH2CH2CH2CH3 |
1-Propanamine |
1.529 |
1 |
2 |
| |
|
1.530 |
2 |
3 |
| CH3CH2CH2CH3 |
Butane |
1.529 |
1 |
2 |
| |
|
1.528 |
1 |
3 |
| |
|
1.528 |
2 |
4 |
| C3H7NH3+ |
n-propylamine, protonated |
1.531 |
1 |
2 |
| |
|
1.520 |
2 |
3 |
| C3O2 |
Carbon suboxide |
1.279 |
1 |
2 |
| |
|
1.279 |
1 |
3 |
| C3H2O2 |
Propiolic acid |
1.455 |
1 |
2 |
| |
|
1.211 |
2 |
3 |
| CHCl2CHO |
dichloroacetaldehyde |
1.532 |
1 |
2 |
| CH2ClCCCl |
1,3-dichloropropyne |
1.211 |
1 |
2 |
| |
|
1.457 |
2 |
3 |
| CHCl2CCH |
3,3-dichloropropyne |
1.210 |
1 |
2 |
| |
|
1.455 |
2 |
3 |
| C2H2N2O |
Furazan |
1.424 |
4 |
5 |
| C3H3N2- |
imidizolyl anion |
1.391 |
4 |
5 |
| C3H3N2 |
imidazolyl radical |
1.474 |
4 |
5 |
| C3H3NO |
Isoxazole |
1.427 |
1 |
2 |
| |
|
1.360 |
1 |
3 |
| C3H3NO |
Oxazole |
1.356 |
4 |
5 |
| C3H3NS |
Thiazole |
1.368 |
3 |
5 |
| CHF2CH2F |
Ethane, 1,1,2-trifluoro |
1.512 |
1 |
2 |
| CH3CF2Cl |
1-Chloro-1,1-Difluoroethane |
1.505 |
1 |
2 |
| C5H4 |
pentatetraene |
1.283 |
1 |
2 |
| |
|
1.283 |
1 |
3 |
| |
|
1.322 |
2 |
4 |
| |
|
1.322 |
3 |
5 |
| C3H4N2 |
1H-Imidazole |
1.373 |
3 |
5 |
| C3H4N2 |
4H-Imidazole |
1.502 |
4 |
5 |
| C3H4N2 |
2H-Imidazole |
1.458 |
4 |
5 |
| C4H4N- |
pyrrolide anion |
1.403 |
2 |
4 |
| |
|
1.422 |
4 |
5 |
| |
|
1.403 |
3 |
5 |
| C3H4O2 |
Methyl glyoxal |
1.531 |
1 |
2 |
| |
|
1.504 |
2 |
3 |
| CH3COCCH |
3-butyn-2-one |
1.510 |
1 |
2 |
| |
|
1.468 |
2 |
4 |
| |
|
1.214 |
4 |
5 |
| C2H4O3 |
1,2,3-trioxolane |
1.551 |
4 |
5 |
| HOCHCCHOH |
allenediol |
1.317 |
1 |
2 |
| |
|
1.317 |
1 |
3 |
| C4H4Se |
selenophene |
1.367 |
2 |
4 |
| |
|
1.435 |
4 |
5 |
| |
|
1.367 |
3 |
5 |
| C4H5N |
Pyrrole |
1.380 |
3 |
5 |
| |
|
1.428 |
5 |
6 |
| |
|
1.380 |
4 |
6 |
| CH2CClCHCH2 |
1,3-Butadiene, 2-chloro- |
1.342 |
1 |
2 |
| |
|
1.464 |
2 |
3 |
| |
|
1.342 |
3 |
4 |
| C5H6 |
Propellane |
1.522 |
1 |
2 |
| |
|
1.522 |
2 |
3 |
| |
|
2.244 |
3 |
4 |
| |
|
1.522 |
3 |
5 |
| |
|
1.595 |
2 |
5 |
| |
|
1.522 |
4 |
5 |
| |
|
1.522 |
1 |
5 |
| C4H6N+ |
pyrrole, protonated |
1.341 |
2 |
4 |
| |
|
1.472 |
4 |
5 |
| |
|
1.341 |
3 |
5 |
| HCOOC2H5 |
Ethyl formate |
1.513 |
1 |
2 |
| CH2FCH2CH2F |
1,3-difluoropropane |
1.516 |
1 |
2 |
| |
|
1.516 |
1 |
3 |
| CH3CH(CH3)CN |
Propanenitrile, 2-methyl- |
1.475 |
2 |
3 |
| |
|
1.535 |
3 |
4 |
| |
|
1.535 |
3 |
5 |
| CH3CH2CH2CN |
Butanenitrile |
1.470 |
2 |
3 |
| |
|
1.535 |
3 |
4 |
| |
|
1.527 |
4 |
5 |
| C5H8 |
Bicyclo[1.1.1]pentane |
1.558 |
1 |
2 |
| |
|
1.558 |
1 |
3 |
| |
|
1.558 |
1 |
4 |
| |
|
1.558 |
2 |
5 |
| |
|
1.558 |
3 |
5 |
| |
|
1.558 |
4 |
5 |
| C5H8 |
Ethenylcyclopropane |
1.478 |
1 |
2 |
| |
|
1.340 |
2 |
3 |
| |
|
1.517 |
1 |
4 |
| |
|
1.517 |
1 |
5 |
| |
|
1.505 |
4 |
5 |
| C4H10O |
Methyl propyl ether |
1.518 |
3 |
4 |
| |
|
1.528 |
4 |
5 |
| C2O4-- |
oxalate anion |
1.560 |
1 |
2 |
| C4F2 |
difluorobutadiyne |
1.380 |
1 |
2 |
| |
|
1.207 |
1 |
3 |
| |
|
1.207 |
2 |
4 |
| CF2CCl2 |
difluorodichloroethylene |
1.335 |
1 |
2 |
| ClCOClCO |
Oxalyl chloride |
1.552 |
1 |
2 |
| C2ClF3 |
Ethene, chlorotrifluoro- |
1.332 |
1 |
2 |
| CFClCFCl |
cis-1,2-dichloro-1,2-difluoroethylene |
1.338 |
1 |
2 |
| CFClCClF |
trans-1,2-dichloro-1,2-difluoroethylene |
1.337 |
1 |
2 |
| C2Br4 |
tetrabromoethene |
1.348 |
1 |
2 |
| CF3CHO |
trifluoroacetaldehyde |
1.538 |
1 |
2 |
| C6H2 |
hexatriyne |
1.222 |
1 |
2 |
| |
|
1.372 |
1 |
3 |
| |
|
1.372 |
2 |
4 |
| |
|
1.217 |
3 |
5 |
| |
|
1.217 |
4 |
6 |
| C4H2N2 |
Fumaronitrile |
1.347 |
1 |
2 |
| |
|
1.435 |
1 |
3 |
| |
|
1.435 |
2 |
4 |
| CF3COOH |
trifluoroacetic acid |
1.542 |
1 |
2 |
| CHF2CHF2 |
1,1,2,2-tetrafluoroethane |
1.522 |
1 |
2 |
| CF3CH2Cl |
2,2,2-Trifluoroethyl chloride |
1.515 |
1 |
2 |
| CHCl2CHF2 |
1,1-dichloro-2,2-difluoroethane |
1.527 |
1 |
2 |
| CH2ClCCl3 |
1,1,1,2-tetrachloroethane |
1.529 |
1 |
2 |
| CHFClCHFCl |
1,2-dichloro-1,2-difluoroethane RR |
1.526 |
1 |
2 |
| CHFClCHClF |
ethane, 1,2-dichloro-1,2-difluoro- |
1.525 |
1 |
2 |
| C4H3ClO |
Furan, 2-chloro |
1.360 |
1 |
2 |
| |
|
1.441 |
2 |
3 |
| |
|
1.360 |
3 |
4 |
| C2H4N2S2 |
Ethanedithioamide |
1.533 |
1 |
2 |
| C6H5- |
phenyl anion |
1.427 |
1 |
2 |
| |
|
1.427 |
1 |
3 |
| |
|
1.406 |
2 |
4 |
| |
|
1.406 |
3 |
5 |
| |
|
1.400 |
5 |
6 |
| |
|
1.400 |
4 |
6 |
| C2H5NO3 |
Nitric acid, ethyl ester |
1.515 |
5 |
6 |
| C6H6 |
Prismane |
1.527 |
1 |
2 |
| |
|
1.527 |
1 |
3 |
| |
|
1.527 |
2 |
3 |
| |
|
1.560 |
1 |
4 |
| |
|
1.560 |
3 |
5 |
| |
|
1.527 |
4 |
5 |
| |
|
1.527 |
4 |
6 |
| |
|
1.560 |
2 |
6 |
| |
|
1.527 |
5 |
6 |
| C6H6 |
Hexa-1,5-diene-3-yne |
1.219 |
1 |
2 |
| |
|
1.430 |
1 |
3 |
| |
|
1.430 |
2 |
4 |
| |
|
1.345 |
3 |
5 |
| |
|
1.345 |
4 |
6 |
| C6H6 |
Trimethylenecycopropane |
1.450 |
1 |
2 |
| |
|
1.450 |
1 |
3 |
| |
|
1.450 |
2 |
3 |
| |
|
1.339 |
1 |
4 |
| |
|
1.339 |
2 |
5 |
| |
|
1.339 |
3 |
6 |
| C5H6N+ |
Pyridinium |
1.385 |
2 |
4 |
| |
|
1.385 |
3 |
5 |
| |
|
1.399 |
4 |
6 |
| |
|
1.399 |
5 |
6 |
| C5H8O |
Methyl cyclopropyl ketone |
1.513 |
2 |
3 |
| |
|
1.493 |
2 |
4 |
| |
|
1.521 |
4 |
5 |
| |
|
1.521 |
4 |
6 |
| |
|
1.494 |
5 |
6 |
| C6H10 |
3-Hexyne |
1.214 |
1 |
2 |
| |
|
1.470 |
1 |
3 |
| |
|
1.470 |
2 |
4 |
| |
|
1.535 |
3 |
5 |
| |
|
1.535 |
4 |
6 |
| CF3COF |
trifluoroacetyl fluoride |
1.540 |
1 |
2 |
| CF3COO- |
trifluoro acetate anion |
1.571 |
1 |
2 |
| CH(CN)3 |
tricyanomethane |
1.479 |
1 |
3 |
| |
|
1.479 |
1 |
4 |
| |
|
1.479 |
1 |
5 |
| HN=C=C(CN)2 |
Dicyanoketenimine |
1.340 |
1 |
2 |
| |
|
1.434 |
1 |
4 |
| |
|
1.434 |
1 |
5 |
| CF3CHF2 |
pentafluoroethane |
1.532 |
1 |
2 |
| C6H6O |
2,5-Cyclohexadienone |
1.481 |
1 |
3 |
| |
|
1.481 |
1 |
4 |
| |
|
1.498 |
2 |
5 |
| |
|
1.345 |
3 |
5 |
| |
|
1.498 |
2 |
6 |
| |
|
1.345 |
4 |
6 |
| C4F4 |
tetrafluorcyclobutadiene |
1.545 |
1 |
2 |
| |
|
1.345 |
2 |
3 |
| |
|
1.345 |
1 |
4 |
| |
|
1.545 |
3 |
4 |
| C2Cl6 |
hexachloroethane |
1.578 |
1 |
2 |
| CF2ClCF2Cl |
1,2-Dichloro-1,1,2,2-tetrafluoroethane |
1.552 |
1 |
2 |
| C6H4F2 |
1,4-difluorobenzene |
1.390 |
1 |
3 |
| |
|
1.390 |
1 |
4 |
| |
|
1.390 |
2 |
5 |
| |
|
1.397 |
4 |
5 |
| |
|
1.397 |
3 |
6 |
| |
|
1.390 |
2 |
6 |
| C6H4Cl2 |
1,4-dichlorobenzene |
1.395 |
1 |
3 |
| |
|
1.395 |
1 |
4 |
| |
|
1.396 |
4 |
5 |
| |
|
1.395 |
2 |
5 |
| |
|
1.395 |
2 |
6 |
| |
|
1.396 |
3 |
6 |
| C(CN)4 |
tetracyanomethane |
1.486 |
1 |
2 |
| |
|
1.486 |
1 |
3 |
| |
|
1.486 |
1 |
4 |
| |
|
1.486 |
1 |
5 |