A Weakly Antiferromagnetically Coupled Biradical Combining Verdazyl with Nitronylnitroxide Units; ChemPluscHhem; Vol. 85, iss. 1
| Parent link: | ChemPluscHhem Vol. 85, iss. 1.— 2019.— [P. 159-162] |
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| 企業作者: | |
| 其他作者: | , , , , , , , , , , , |
| 總結: | Title screen An antiferromagnetically (AFM) coupled biradical based on oxoverdazyl and nitronylnitroxide was synthesized in 46 % yield using Sonogashira coupling. The obtained heterobiradical evidenced distinct properties of both radical entities in solution. Depending on the solvent, the prepared biradical crystallized in two different forms. SQUID magnetization measurements on Form II showed coupling constants JintraII/kB=-2.1 K and zJinterII/kB=-11.5 K. Consequently, total intermolecular exchange interactions are five times larger than the intramolecular ones. Further, DFT calculations explained this phenomenon and indicated the advantage of Form I for further in depth investigations. Режим доступа: по договору с организацией-держателем ресурса |
| 語言: | 英语 |
| 出版: |
2019
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| 主題: | |
| 在線閱讀: | https://doi.org/10.1002/cplu.201900709 |
| 格式: | 電子 Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663832 |
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| 200 | 1 | |a A Weakly Antiferromagnetically Coupled Biradical Combining Verdazyl with Nitronylnitroxide Units |f P. V. Petunin, T. A. Rybalova, M. E. Trusova [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 21 tit.] | ||
| 330 | |a An antiferromagnetically (AFM) coupled biradical based on oxoverdazyl and nitronylnitroxide was synthesized in 46 % yield using Sonogashira coupling. The obtained heterobiradical evidenced distinct properties of both radical entities in solution. Depending on the solvent, the prepared biradical crystallized in two different forms. SQUID magnetization measurements on Form II showed coupling constants JintraII/kB=-2.1 K and zJinterII/kB=-11.5 K. Consequently, total intermolecular exchange interactions are five times larger than the intramolecular ones. Further, DFT calculations explained this phenomenon and indicated the advantage of Form I for further in depth investigations. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t ChemPluscHhem | ||
| 463 | |t Vol. 85, iss. 1 |v [P. 159-162] |d 2019 | ||
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| 701 | 1 | |a Rybalova |b T. A. |g Tatjyana Valerjevna | |
| 701 | 1 | |a Trusova |b M. E. |c organic chemist |c Associate professor of Tomsk Polytechnic University, Candidate of chemical sciences |f 1982- |g Marina Evgenievna |3 (RuTPU)RU\TPU\pers\31823 |9 15918 | |
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