( ( Dicationic compounds ) ( ( ( ( have two ) positively ) ( charged ( ends ( ( held together ) ( by ( a ( ( neutrally charged ) ( chemical ( linker group ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Dicationic) (NNS compounds)) (VP (VBP have) (NP (CD two)) (ADVP (RB positively)) (VP (VBN charged) (NP (NP (NNS ends)) (VP (VBN held) (PRT (RP together)) (PP (IN by) (NP (DT a) (ADJP (RB neutrally) (VBN charged)) (JJ chemical) (NN linker) (NN group))))))) (. .)))
Dicationic compounds have two positively charged ends held together by a neutrally charged chemical linker group.
(ROOT (S (NP (JJ Iconic) (NNS compounds)) (VP (VBP have) (NP (DT a) (JJ net) (JJ neutral) (NN charge))) (. .)))