Journal
JOURNAL OF PHYSICAL ORGANIC CHEMISTRY
Volume 25, Issue 4, Pages 314-321Publisher
WILEY
DOI: 10.1002/poc.1917
Keywords
bis(metaphenylene) semiquinone biradicals; electron paramagnetic resonance; SQUID magnetometry; substituent effects
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Funding
- NSF [CHE-0345263]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0910585] Funding Source: National Science Foundation
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The design of novel, functionalized bis-metaphenylene semiquinone (SQ) ligands and their corresponding metal complexes which combine conformational flexibility and electron-withdrawing, electron-donating, and conjugating substituents enable investigation of multiple structureproperty relationships. Along these lines, we report the synthesis of three new bis(ZnII(SQ)TpCum,Me) complexes containing the bis-metaphenylene coupling fragment. Using electron paramagnetic resonance spectroscopy, ab initio computations and superconducting quantum interference device magnetometry, we show how spin-density is affected by the bis-metaphenylene system substituents. Copyright (c) 2011 John Wiley & Sons, Ltd.
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