Abstract
Unequivocal structural evidence of noncovalent interactions between π-acidic naphthalenediimides (NDIs) and anions has been elicited by X-ray crystallographic analysis of a zigzag coordination polymer involving Pd(II) ions and linear N,N′-di(4-pyridyl)NDI (DPNDI) ligands. Electrochemical studies show that the DPNDI/TfO− interactions suppress DPNDI's π-acidity, whereas Pd(II)-coordination of DPNDI enhances its π-acidity. The ability of DPNDI to participate in F−-induced electron transfer leading to colorimetric sensing of F− remains intact in the [Pd(II)/DPNDI]n coordination polymer.
Published Version
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