Design and Synthesis of Porphyrins Bearing Rigid Hydrogen Bonding Motifs: Highly Versatile Building Blocks for Self-Assembly of Polymers and Discrete Arrays

Autor: Xinxu Shi, Charles Michael Drain, K. M. Barkigia, Jack Fajer
Rok vydání: 2001
Předmět:
Zdroj: The Journal of Organic Chemistry. 66:6513-6522
ISSN: 1520-6904
0022-3263
DOI: 10.1021/jo010108c
Popis: Two aldehydes, 2,6-diacetam ido-4-formylpyridine (7) and 1-butyl-6-formyluracil (11), are used to synthesize five pyridyl and four uracyl meso-subsituted porphyrins. With these complementary porphyrin building blocks, it is possible to build various types of multi-porphyrin supramolecules with different spatial relationships in predefined geometries. The formation and properties of self complementary dimers and a closed tetrameric square are presented as a basis of comparison to the latter system in the solid state. An X-ray structure of 5,10-bis(4-tert-butylphenyl)-15,20-bis-(3,5-diacetam ido-4-pyridyl)porphyrin confirm s its molecularstru cture and reve als a hydrogen-bonded supramolecular organization mediated by water molecules.
Databáze: OpenAIRE