(Azulene-1,3-diyl)-bis(nitronyl nitroxide) and (Azulene-1,3-diyl)-bis(iminonitroxide) and Their Copper Complexes

(Azulene-1,3-diyl)-bis(nitronyl nitroxide) and (Azulene-1,3-diyl)-bis(iminonitroxide) and Their Copper Complexes Научная публикация

Журнал

Chemistry - An Asian Journal
ISSN: 1861-4728 , E-ISSN: 1861-471X

Вых. Данные

Год: 2017, Том: 12, Номер: 22, Страницы: 2929-2941 Страниц : 13 DOI: 10.1002/asia.201701085

Ключевые слова

azulenes; copper; nonalternant hydrocarbons; quantum chemistry; radicals

Авторы

Haraguchi Makoto ¹ , Tretyakov Evgeny ^2,3 , Gritsan Nina ^3,5 , Romanenko Galina ⁴ , Gorbunov Dmitry ^3,5 , Bogomyakov Artem ⁴ , Maryunina Kseniya ^6,7 , Suzuki Shuichi ^1,9 , Kozaki Masatoshi ¹ , Shiomi Daisuke ¹ , Sato Kazunobu ¹ , Takui Takeji ¹ , Nishihara Sadafumi ^6,7 , Inoue Katsuya ^6,7 , Okada Keiji ^1,8

Организации

1	(Данные Web of science) Osaka City Univ, Grad Sch Sci, Dept Chem & Mol Mat Sci, Sumiyoshi Ku, Osaka 5588585, Japan
2	(Данные Web of science) Russian Acad Sci, Vorozhtsov Inst Organ Chem, Ak Lavrentiev Ave 9, Novosibirsk 630090, Russia
3	(Данные Web of science) Novosibirsk State Univ, Pirogova St 2, Novosibirsk 630090, Russia
4	(Данные Web of science) Russian Acad Sci, Int Tomog Ctr, 3a Ul Inst, Novosibirsk 630090, Russia
5	(Данные Web of science) Voevodsky Inst Chem Kinet & Combust, 3 Ul Inst Skaya, Novosibirsk 630090, Russia
6	(Данные Web of science) Hiroshima Univ, Ctr Chiral Sci, Grad Sch Sci, Dept Chem, 1-3-1 Kagamiyama, Higashihiroshima 7398526, Japan
7	(Данные Web of science) Hiroshima Univ, Inst Adv Mat Res, 1-3-1 Kagamiyama, Higashihiroshima 7398526, Japan
8	(Данные Web of science) Osaka City Univ, Adv Res Inst Nat Sci & Technol OCARINA, Sumiyoshi Ku, Osaka 5588585, Japan
9	(Данные Web of science) Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5608531, Japan

In contrast to diradicals connected by alternant hydrocarbons, only a few studies on those connected by nonalternant hydrocarbons have been reported. The syntheses, structures, and magnetic properties of azulene-1,3-diyl linked bis(nitronyl nitroxide) (NN(2)Az) and bis(iminonitroxide) (IN(2)Az) diradicals and their Cu(hfac)(2) (hfac=hexafluoroacetylacetonate) complexes were investigated. NN(2)Az was shown to have an intramolecular ferromagnetic interaction with J(obs)/k(B)=+10.0K (H=-2JS(1)S(2)) between (nitronyl nitroxide) spins, whereas IN(2)Az was estimated to have a much weaker intramolecular magnetic interaction. The reactions of NN(2)Az and IN(2)Az with Cu(hfac)(2) gave a 1:2 [{Cu(hfac)(2)}(2)(NN(2)Az)] complex and a 1:1 [Cu(hfac)(2)(IN(2)Az)]C6H12 complex, respectively. [{Cu(hfac)(2)}(2)(NN(2)Az)] showed strong intramolecular antiferromagnetic interactions (J(1-Cu-R)/k(B)approximate to-800K, J(2-Cu-R)/k(B)approximate to-500K) between the Cu-II spins and the coordinating NN spins, whereas [Cu(hfac)(2)(IN(2)Az)] exhibited a ferromagnetic exchange interaction (J(obs-Cu-R)/k(B)=+114K) between the Cu-II spin and the imino-coordinated iminonitroxide spin.

Haraguchi M. , Tretyakov E. , Gritsan N. , Romanenko G. , Gorbunov D. , Bogomyakov A. , Maryunina K. , Suzuki S. , Kozaki M. , Shiomi D. , Sato K. , Takui T. , Nishihara S. , Inoue K. , Okada K.
(Azulene-1,3-diyl)-bis(nitronyl nitroxide) and (Azulene-1,3-diyl)-bis(iminonitroxide) and Their Copper Complexes
Chemistry - An Asian Journal. 2017. V.12. N22. P.2929-2941. DOI: 10.1002/asia.201701085 WOS Scopus

Опубликована online:	31 окт. 2017 г.
Опубликована в печати:	16 нояб. 2017 г.

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