| Type | Bond length(Å) |
|---|---|
| C-C single | 1.54 |
| C-C aromatic | 1.40 |
| C-C double | 1.34 |
| C-C triple | 1.20 |
| C-N single | 1.48 |
| C-N double | 1.35 |
| C-N triple | 1.16 |
| C-O single | 1.45 |
| C-O double | 1.23 |
| C-S single | 1.82 |
| C-S double | 1.72 |
Information in the following table was derived from the Handbook of Chemistry and Physics (63rd edition mostly, some information from the 75th edition).
Send additions and corrections to Gerard.
| El. 1 | El. 2 | Typical length (Å) | Remarks |
|---|---|---|---|
| C | H | 1.09 | C-H range 1.056-1.115 |
| C | Be | 1.93 | C-Be |
| C | Hg | 2.07 | C-Hg |
| C | B | 1.56 | C-B |
| C | Al | 2.24 | C-Al |
| C | In | 2.16 | C-In |
| C | Ge | 1.98 | C-Ge |
| C | Si | 1.86 | C-Si range 1.84-1.88 |
| C | In | 2.16 | C-In |
| C | Sn | 2.16 | C-Sn range 2.143-2.18 |
| C | Pb | 2.29 | C-Pb |
| C | P | 1.87 | C-P |
| C | As | 1.98 | C-As |
| C | Sb | 2.20 | C-Sb |
| C | Bi | 2.30 | C-Bi |
| C | Cr | 1.92 | C-Cr |
| C | Te | 2.05 | C-Te |
| C | Mo | 2.08 | C-Mo |
| C | W | 2.06 | C-W |
| C | F | 1.83 | C-F CH3-F type |
| C | F | 1.32 | C-F non CH3-F type; range 1.30-1.334 |
| C | Cl | 1.77 | C-Cl CH3-Cl type |
| C | Cl | 1.71 | C-Cl CH2=CH-Cl or C6H5-Cl type; range 1.70-1.72 |
| C | Cl | 1.64 | C-Cl acetylenic type |
| C | Br | 1.94 | C-Br CH3-Br type |
| C | Br | 1.87 | C-Br CH2=CH-Br or C6H5-Br type; range 1.85-1.89 |
| C | Br | 1.79 | C-Br acetylenic type |
| C | I | 2.13 | C-I CH3-I type |
| C | I | 2.07 | C-I CH2=CH-I or C6H5-I type; range 2.05-2.092 |
| C | I | 1.99 | C-I acetylenic type |
| C | Fe | 1.84 | C-Fe |
| C | Co | 1.83 | C-Co |
| C | Ni | 1.82 | C-Ni |
| C | Pd | 2.27 | C-Pd |
| C | C | 1.53 | C-C single; range 1.49-1.54 |
| C | C | 1.44 | C-C single shortened; range 1.421-1.46 |
| C | C | 1.39 | C-C aromatic or near two triple bonds; range 1.373-1.395 |
| C | C | 1.34 | C-C double or partial triple; range 1.309-1.337 |
| C | C | 1.20 | C-C triple; range 1.204-1.206 |
| C | N | 1.48 | C-N single; range 1.472-1.479 |
| C | N | 1.43 | C-N aromatic |
| C | N | 1.34 | C-N partial double; range 1.322-1.352 |
| C | N | 1.16 | C-N triple |
| C | O | 1.43 | C-O single |
| C | O | 1.47 | C-O single strained |
| C | O | 1.36 | C-O partial double |
| C | O | 1.24 | C-O double; range 1.23-1.26 |
| C | O | 1.19 | C-O shortened double; range 1.17-1.207 |
| C | S | 1.82 | C-S single |
| C | S | 1.72 | C-S (partial) double; range 1.71-1.73 |
| C | S | 1.56 | C-S double |
| C | Se | 1.97 | C-Se single |
| C | Se | 1.89 | C-Se (partial) double; guess !!! |
| C | Se | 1.71 | C-Se double |
| S | S | 2.07 | S-S single |
| S | S | 1.89 | S-S double |
| Se | Se | 2.32 | Se-Se single |
| Se | Se | 2.15 | Se-Se double |
| H | N | 1.01 | N-H |
| H | O | 0.98 | O-H |
| H | P | 1.42 | P-H |
| H | S | 1.35 | S-H |
| H | Se | 1.47 | Se-H |
| O | Cl | 1.49 | O-Cl |
| O | N | 1.14 | O-N double |
| O | N | 1.46 | O-N single |
| O | P | 1.38 | O-P double |
| O | P | 1.63 | O-P single |
| O | S | 1.43 | O-S double |