Optoelectronic Tuning of Organoborylazadipyrromethenes via Effective Electronegativity at the Metalloid Center

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• 作者：Seare A. Berhe ; Marco T. Rodriguez ; Eunsol Park ; Vladimir N. Nesterov ; Hongjun Pan ; W. Justin Youngblood
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：March 3, 2014
• 年：2014
• 卷：53
• 期：5
• 页码：2346-2348
• 全文大小：228K
• 年卷期：v.53,no.5(March 3, 2014)
• ISSN：1520-510X

文摘

Organoborylazadipyrromethenes were synthesized from free base and fluoroborylazadipyrromethenes and characterized with regard to their structural and electronic properties. B鈥揘 bond lengths, along with photophysical and redox behavior, appear dependent on the effective electronegativity at the boron atom as tuned by its substituents, with stronger electronegativity correlating to a shorter B鈥揘 bond length, red-shifted absorbance, enhanced fluorescence lifetime and yield, and positively shifted redox potentials.