( ( ( structure ( , ( bonding ( , ( reactivity ( , ( and spectroscopic ) ) ) ) ) ) ) ( properties ( of ( metal complexes ) ) ) ) . )
(ROOT (NP (NP (NN structure) (, ,) (NN bonding) (, ,) (NN reactivity) (, ,) (CC and) (NN spectroscopic)) (NP (NP (NNS properties)) (PP (IN of) (NP (NN metal) (NNS complexes)))) (. .)))
structure, bonding, reactivity, and spectroscopic properties of 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))))))) (. .)))