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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Calculated > Geometry > Calculated geometry > One type of bond | |
ROMP2/6-31+G**
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| 1.20 | 1.30 | 1.40 | 1.50 | 1.60 | 1.70 | 1.80 | 1.90 | 2.00 | 2.10 | 2.20 | 2.30 | 2.40 | ||||||||||||||||||||||||||||
| bond lengths (Å) | ||||||||||||||||||||||||||||||||||||||||
| Average bond length | Standard deviation |
|---|---|
| 1.431 | 0.147 |
| Species | Name | Bond Length (Å) | |
|---|---|---|---|
| Lowest value | C2H | Ethynyl radical | 1.225 |
| Highest value | C2H3+ | vinyl cation | 2.346 |
| Species | Name | Bond Length (Å) | Atom1 index | Atom2 index |
|---|---|---|---|---|
| C2+ | carbon diatomic cation | 1.412 | 1 | 2 |
| C2H | Ethynyl radical | 1.225 | 1 | 2 |
| C2H2+ | acetylene cation | 1.260 | 1 | 2 |
| C2H3 | vinyl | 1.319 | 1 | 2 |
| C2H3+ | vinyl cation | 2.346 | 2 | 3 |
| C2H4+ | Ethylene cation | 1.416 | 1 | 2 |
| C3 | carbon trimer | 1.304 | 1 | 2 |
| 1.304 | 1 | 3 | ||
| CCO | Dicarbon monoxide | 1.371 | 1 | 2 |
| HCCN | cyanomethylene | 1.339 | 1 | 2 |
| HCCO | ketenyl radical | 1.308 | 1 | 2 |
| HCCF+ | fluoroacetylene cation | 1.255 | 1 | 2 |
| C3H3- | Propargyl anion | 1.366 | 1 | 2 |
| 1.283 | 2 | 3 | ||
| C3H3 | cyclopropenyl radical | 1.462 | 1 | 3 |
| 1.462 | 1 | 4 | ||
| 1.325 | 3 | 4 | ||
| C3H3+ | cyclopropenyl cation | 1.370 | 1 | 2 |
| 1.370 | 1 | 3 | ||
| 1.370 | 2 | 3 | ||
| CH3CN- | acetonitrile anion | 1.469 | 1 | 2 |
| HCNCH2+ | 2H-Azirine cation | 1.663 | 2 | 3 |
| CH2CHO | Vinyloxy radical | 1.432 | 1 | 3 |
| CH2CHF | Ethene, fluoro- | 1.329 | 1 | 2 |
| CH3CHN | methylmethaniminyl radical | 1.508 | 1 | 2 |
| CH3CHO+ | acetaldehyde cation | 1.493 | 1 | 2 |
| CH2CH2Cl | 2-chloroethyl radical | 1.473 | 1 | 2 |
| CH3CHCH | 1-propenyl radical | 1.322 | 1 | 2 |
| 1.503 | 1 | 3 | ||
| CH3CH2O | Ethoxy radical | 1.518 | 1 | 2 |
| CH3CHOH | 1-hydroxy-ethyl radical | 1.484 | 1 | 2 |
| CH2CH2OH | 2-hydroxy ethyl radical | 1.485 | 2 | 3 |
| CH3CHCH3 | Isopropyl radical | 1.491 | 1 | 2 |
| 1.491 | 1 | 3 | ||
| C3H7 | n-Propyl radical | 1.491 | 1 | 2 |
| 1.529 | 2 | 3 | ||
| C4 | Carbon tetramer | 1.300 | 1 | 2 |
| 1.323 | 1 | 3 | ||
| 1.323 | 2 | 4 | ||
| C2H2O2 | Ethanedial | 1.514 | 1 | 2 |
| C3H3N+ | acrylonitrile cation | 1.389 | 1 | 3 |
| 1.409 | 3 | 5 | ||
| C2H4F2 | 1,2-difluoroethane | 1.513 | 1 | 2 |
| CH3COCH2 | Acetonyl radical | 1.448 | 1 | 3 |
| 1.513 | 1 | 4 | ||
| C2H5OO | ethylperoxy radical | 1.509 | 1 | 2 |
| CH3COCH3- | acetone anion | 1.518 | 1 | 3 |
| 1.518 | 1 | 4 | ||
| C3H3N2 | imidazolyl radical | 1.474 | 4 | 5 |
| C3H4N2 | 1H-Imidazole | 1.380 | 3 | 5 |
| C4H4N | pyrrolide radical | 1.460 | 2 | 4 |
| 1.366 | 4 | 5 | ||
| 1.460 | 3 | 5 | ||
| C6H5CHO | benzaldehyde | 1.403 | 1 | 2 |
| 1.394 | 2 | 3 | ||
| 1.402 | 3 | 4 | ||
| 1.399 | 4 | 5 | ||
| 1.397 | 5 | 6 | ||
| 1.402 | 1 | 6 | ||
| 1.480 | 1 | 7 |