Be—O

BeO

C—C

C2

CH3CN

C2N2

CH2CO

CH3CO(−)

C—Cl

CCl(−)

CCl4

CH2Cl2

CH2Cl(−)

ClCN

COCl(−)

C—F

CCl3F

CF4

CH3F

C—H

CH(−)

CH2

CH3(+)

CH4

CCl3H

CH3CN

HCN

HCO(−)

H2CO

CF3H

CH3OH

C—N

CN(−)

CH3NH2

CH3NO2