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Conformationally rigid, π-extended annulated porphyrinoids derived from the naphthobipyrrole motif.
Org Biomol Chem
June 2022
Department of Chemistry, National Institute of Technology Karnataka, Surathkal 575025, India.
π-Extension in porphyrinoids can be achieved by fusing additional aromatic rings onto the macrocycle's periphery and such porphyrinoids are referred to as annulated porphyrinoids. Annulated porphyrinoids display contrasting properties in comparison with their non-annulated congeners. While an annulation strategy can create π-extended systems, the simultaneous incorporation of conformational rigidity in such porphyrinoids can ensure that they adopt a planar structure, and the advantages associated with the extended π-network can be leveraged.
View Article and Find Full Text PDFCalix[2]bipyrrole[2]furan and calix[2]bipyrrole[2]thiophene: new pyrrolic receptors exhibiting a preference for carboxylate anions.
J Am Chem Soc
November 2003
Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas at Austin, 1 University Station-A5300, Austin, Texas 78712-0165, USA.
Heterocycles other than pyrrole, specifically bipyrrole, furan, and thiophene, have been used to construct two new, calixpyrrole-like anion receptors; binding studies, carried out by ITC in CH3CN, reveal a selectivity for "Y-shaped" anions, such as benzoate, over spherical ones, such as chloride.
View Article and Find Full Text PDFCalix[n]bipyrroles: synthesis, characterization, and anion-binding studies.
Angew Chem Int Ed Engl
May 2003
Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas at Austin, 1 University Station-A5300, Austin, TX 78712-1167, USA.
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