Quintet bis(carbene) from triplet diarylcarbenes introduced at the 1,8-position of anthracene |
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| Authors: | Ohtsuka Yusuke Itoh Tetsuji Hirai Katsuyuki Takui Takeji Tomioka Hideo |
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| Institution: | Chemistry Department for Materials, Faculty of Engineering, Mie University, Tsu, Mie 514-8507, Japan. |
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| Abstract: | 9-(10-phenyl)anthryl](4-bromo-2,6-dimethylphenyl)diazomethane was found to be stable enough to survive Sonogashira coupling reaction conditions and was converted to 9-(10-phenyl)anthryl](4-trimethylsilylethynyl-2,6-dimethylphenyl)diazomethane, which was reacted with 1,8-diiodoanthracene to give bis(diazo) compound. Bis(carbene) generated by irradiation of the bis(diazo) compound generated a fairly persistent S = 2 quintet state. structure: see text] |
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