| Name | Formula | Alpha formula | Edge | Filename (right click to 'save target as') | Citation |
| Carbene saturated | C11H20N2 | C11H20N2 | C 1s | vz-0cckk.os | LU+99 |
| Carbene saturated | C11H20N2 | C11H20N2 | N 1s | vz-0nnkk.os | LU+99 |
| Carbene saturated #2 | C11H24N2 | C11H24N2 | C 1s | vw-0cckk.os | LU+99 |
| Carbene saturated #2 | C11H24N2 | C11H24N2 | N 1s | vw-0nnkk.os | LU+99 |
| Carbene saturated H2(methyl) | C5H12N2 | C5H12N2 | N 1s | vm-0nnkk.os | LU+99 |
| Carbene Unsaturated | C11H20N2 | C11H20N2 | C 1s | vy-0cckk.os | LU+99 |
| Carbene Unsaturated | C11H20N2 | C11H20N2 | N 1s | vy-0nnkk.os | LU+99 |
| Carbon | C (atomic) | C | C 1s | aaa-cckk.os | SF |
| Carbon dioxide | CO2 | CO2 | C 1s | cd-0cckk.os | MC&87 |
| Carbon dioxide | CO2 | CO2 | O 1s | cd-0ookk.os | MC&87 |
| Carbondisulphide | CS2 | CS2 | C 1s | cs-0cckk.os | MH&89 |
| Carbondisulphide | CS2 | CS2 | S 2p | cs-0ssl3.os | MH&89 |
| Carbonmonoxide | CO | CO | C 1s | co-0cckk.os | HB80a |
| Carbonmonoxide | CO | CO | O 1s | co-0ookk.os | HB80a |
| Carbonyl Fluoride | CF2O | CF2O | C 1s | cf-0cckk.os | RI&88 |
| Carbonyl Fluoride | CF2O | CF2O | F 1s | cf-0ffkk.os | RI&88 |
| Carbonyl Fluoride | CF2O | CF2O | O 1s | cf-0ookk.os | RI&88 |
| Carbonyl sulfide | COS | COS | C 1s | so-0cckk.os | MH&89 |
| Carbonyl sulfide | COS | COS | O 1s | so-0ookk.os | MH&89 |
| Carbonyl sulfide | COS | COS | S 2p | so-0ssl3.os | MH&89 |
| Chlorine | Cl (atomic) | Cl | Cl 2p | aaa-clll.os | SF |
| Chloro-FRED | Cl-C-(Co(CO)3)3 | C10ClCo3O9 | C 1s | gf-0cckk.os | HM&93 |
| Chloro-FRED | Cl-C-(Co(CO)3)3 | C10ClCo3O9 | Cl 2p | gf-0cll3.os | HM&93 |
| Chloro-FRED | Cl-C-(Co(CO)3)3 | C10ClCo3O9 | Co 2p | gf-0col3.os | HM&93 |
| Chloro-FRED | Cl-C-(Co(CO)3)3 | C10ClCo3O9 | O 1s | gf-0ookk.os | HM&93 |
| Chromocene | Cr(Cp)2 | C10CrH10 | C 1s | cx-0cckk.os | HWR89 |
| cis-1,2-difluoroethene | C2F2H2 | C2F2H2 | C 1s | ci-0cckk.os | MC&87 |
| cis-1,2-difluoroethene | C2F2H2 | C2F2H2 | F 1s | ci-0ffkk.os | MC&87 |
| cis-tetramethylcyclobutene | C8H14 | C8H14 | C 1s | yc-0cckk.os | EL+98 |
| Cobalt | C (atomic) | Co | Co 2p | aaa-coll.os | SF |
| Cobaltacene | Co(Cp)2 | C10CoH10 | C 1s | cy-0cckk.os | HN&86 |
| Cobaltacene | Co(Cp)2 | C10CoH10 | Co 2p | cy-0col3.os | HN&86 |
| Cyclobutane | c-C4H8 | C4H8 | C 1s | cb-0cckk.os | HN&86 |
| cyclohexadiene-iron-tricarbonyl | c-C6H8Fe(CO)3 | C9FeH8O3 | C 1s | fj-0cckk.os | WRH92 |
| cyclohexadiene-iron-tricarbonyl | c-C6H8Fe(CO)3 | C9FeH8O3 | Fe 2p | fj-0fel3.os | WRH92 |
| cyclohexadiene-iron-tricarbonyl | c-C6H8Fe(CO)3 | C9FeH8O3 | O 1s | fj-0ookk.os | WRH92 |
| Cyclohexane | c-C6H10 | C6H10 | C 1s | hg-0cckk.os | HN&86 |
| cyclohexanone | c-C6H10O | C6H10O | C 1s | kd-0cckk.os | FH94 |
| cyclohexanone | c-C6H10O | C6H10O | O 1s | kd-0ookk.os | FH94 |
| Cyclohexene | c-C6H8 | C6H8 | C 1s | ch-0cckk.os | HR89,H91 |
| Cyclooctatetraene | c-C8H8 | C8H8 | C 1s | oc-0cckk.os | HN&86 |
| Cyclooctatetraeneiron tricarbonyl | C8H8Fe(CO)3 | C11FeH8O3 | C 1s | fq-0cckk.os | RI&88 |
| Cyclooctatetraeneiron tricarbonyl | C8H8Fe(CO)3 | C11FeH8O3 | Fe 2p | fq-0llkk.os | WRH92 |
| cyclooctatetraene-iron-tricarbonyl | c-C8H8Fe(CO)3 | C11FeH8O3 | O 1s | fq-0ookk.os | WRH92 |
| Cyclopentadiene (cp) | C5H6 | C5H6 | C 1s | pd-0cckk.os | RWH91 |
| Cyclopentadiene vanadium tetracarbonyl | C5H5V(CO)4 | C9H5O4V | C 1s | gt-0cckk.os | WHR92 |
| Cyclopentadiene vanadium tetracarbonyl | C5H5V(CO)4 | C9H5O4V | O 1s | gt-0ookk.os | WHR92 |
| Cyclopentadiene vanadium tetracarbonyl | C5H5V(CO)4 | C9H5O4V | V 2p | gt-0vvll.os | |
| Cyclopentadienylcobalt dicarbonyl | CpCo(CO)2 | C7CoH5O2 | C 1s | cm-0cckk.os | RWH91 |
| Cyclopentadienylcobalt dicarbonyl | CpCo(CO)2 | C7CoH5O2 | Co 2p | cm-0col3.os | RWH91 |
| Cyclopentadienylcobalt dicarbonyl | CpCo(CO)2 | C7CoH5O2 | O 1s | cm-0ookk.os | RWH91 |
| Cyclopentadienyltitanium trichloride | C5H5TiCl3 | C5Cl3H5Ti | C 1s | td-0cckk.os | WH93 |
| Cyclopentadienyltitanium trichloride | C5H5TiCl3 | C5Cl3H5Ti | Cl 2p | td-0cll3.os | WH93 |
| Cyclopentadienyltitanium trichloride | C5H5TiCl3 | C5Cl3H5Ti | Ti 2p | td-0til3.os | WH93 |
| Cyclopentane | c-C5H10 | C5H10 | C 1s | pu-0cckk.os | HN&86 |
| Cyclopentene | c-C5H8 | C5H8 | C 1s | pv-0cckk.os | HN&86 |
| Cyclopentyl-rhenium-carbonyl-nitrogen | Cp*Re(CO)2N2 | C12H15N2O2Re | C 1s | rn-0cckk.os | HS92 |
| Cyclopentyl-rhenium-carbonyl-nitrogen | Cp*Re(CO)2N2 | C12H15N2O2Re | N 1s | rn-0nnkk.os | HS92 |
| Cyclopentyl-rhenium-carbonyl-nitrogen | Cp*Re(CO)2N2 | C12H15N2O2Re | O 1s | rn-0ookk.os | HS92 |
| Cyclopropane | c-C3H6 | C3H6 | C 1s | cp-0cckk.os | HN&86 |