( ( ( Synthesis , ) ( ( structure ( , ( bonding ( and ( optical properties ) ) ) ) ) ( of ( transition ( metal complexes ) ) ) ) ) . )
(ROOT (NP (NP (NNS Synthesis)) (, ,) (NP (NP (NN structure) (, ,) (NN bonding) (CC and) (JJ optical) (NNS properties)) (PP (IN of) (NP (NN transition) (NN metal) (NNS complexes)))) (. .)))
Synthesis, structure, bonding and optical properties of transition metal complexes.
(ROOT (S (NP (DT The) (JJ metallic) (NN bond)) (VP (VBZ is) (ADJP (JJ responsible) (PP (IN for) (NP (NP (DT the) (NNS properties)) (PP (IN of) (NP (NNS metals))))))) (. .)))