( ( The ( term ( dipolar bond ) ) ) ( ( is ( ( used ( in ( organic chemistry ) ) ) ( for ( compounds ( such ( as ( ( amine oxides ) ( ( for which ) ( ( the ( electronic structure ) ) ( can ( be ( ( described ( in ( terms ( of ( the ( basic amine ) ) ) ) ) ) ( ( donating ( two electrons ) ) ( to ( an ( oxygen atom ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN term) (NN dipolar) (NN bond)) (VP (VBZ is) (VP (VBN used) (PP (IN in) (NP (JJ organic) (NN chemistry))) (PP (IN for) (NP (NP (NNS compounds)) (PP (JJ such) (IN as) (NP (NP (JJ amine) (NNS oxides)) (SBAR (WHPP (IN for) (WHNP (WDT which))) (S (NP (DT the) (JJ electronic) (NN structure)) (VP (MD can) (VP (VB be) (VP (VBN described) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (DT the) (JJ basic) (NN amine))))) (S (VP (VBG donating) (NP (CD two) (NNS electrons)) (PP (TO to) (NP (DT an) (NN oxygen) (NN atom)))))))))))))))) (. .)))
The term dipolar bond is used in organic chemistry for compounds such as amine oxides for which the electronic structure can be described in terms of the basic amine donating two electrons to an oxygen atom.
(ROOT (S (NP (DT The) (NN term) (NNS amines)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (NP (NP (NNS molecules)) (SBAR (WHNP (WDT that)) (S (VP (VBP contain) (NP (JJ carbon-nitrogen) (NNS bonds))))))))))) (. .)))