Design and synthesis of organic multi-porphyrin self -assembled supramolecules.
Item
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Title
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Design and synthesis of organic multi-porphyrin self -assembled supramolecules.
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Identifier
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AAI3047265
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identifier
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3047265
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Creator
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Shi, Xinxu.
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Contributor
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Adviser: Charles M. Drain
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Date
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2002
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Language
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English
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Publisher
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City University of New York.
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Subject
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Chemistry, Organic
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Abstract
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Chapter 1. Two aldehydes, 2,6-diacetamido-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 supramoleculas 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-diacetamido-4-pyridyl)porphyrin ( IV) confirms its molecular structure and reveals a hydrogen-bonded supramolecular organization mediated by water molecules.;Chapter 2. Discrete squares and tapes of porphyrins are self-assembled by self-complementary hydrogen bonding between diacetamidopyridyl recognition groups rigidly linked to the chromophore.;Chapter 3. Discrete tapes, squares, nonomer, hexomer, and star pentamer of porphyrins may be self-assembled by hetro-complementary hydrogen bonding between diacetamidopyridyl and 1-butyluracyl recognition groups rigidly linked to the chromophores.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
