Anion Binding Properties of N-Confused Porphyrins at the Peripheral Nitrogen
- Cite this article as:
- Maeda, H., Osuka, A. & Furuta, H. Journal of Inclusion Phenomena (2004) 49: 33. doi:10.1023/B:JIPH.0000031110.42096.d3
Ni(II), Pd(II), and Cu(II) complexes of N-confused porphyrin (NCP) exhibit anion binding properties through a hydrogen bonding interaction at the peripheral NH of confused pyrrole ring. The binding constants of the tetrakis(pentafluorophenyl)-NCP metal complexes (1-M, M= Ni, Pd, Cu) for various halide anions in CH2C12 increase in the order of F− > Cl− > Br− > I−, respectively. Zwitterionic resonance form of the NCP complexes as well as interactions between halide anions and a pentafluorophenyl group are suggested to be important for efficient anion binding.
Unable to display preview. Download preview PDF.