Spirocyclic derivatives of nitronyl nitroxides in the design of heterospin CuII complexes manifesting spin transitions

Autor:	A. S. Bogomyakov, V. I. Ovcharenko, K. Yu. Maryunina, Alexey Polushkin, Evgeny V. Tretyakov, Renad Z. Sagdeev, N. A. Artiukhova, S. V. Fokin, Galina V. Romanenko
Rok vydání:	2013
Předmět:	chemistry.chemical_classification Reaction conditions Nitroxide mediated radical polymerization Spin states Chemistry Stereochemistry General Chemistry Polymer Ring (chemistry) chemistry.chemical_compound Crystallography X-ray crystallography Cyclopentane Spin (physics)
Zdroj:	Russian Chemical Bulletin. 62:2132-2140
ISSN:	1573-9171 1066-5285
DOI:	10.1007/s11172-013-0312-x
Popis:	A method was developed for the synthesis of a nitronyl nitroxide containing cyclopentane substituents in positions 4 and 5 of the imidazoline ring, viz., 2-(3-pyridyl)-4,5-bis(spiropentyl)-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (LCP). The reaction of CuII hexafluoroacetylacetonate with LCP affords different products depending on the reaction conditions: mononuclear [Cu(hfac)2(LCP)2], binuclear [Cu(hfac)2LCP]2, tetranuclear {[Cu(hfac)2]4(LCP)2}, or chain polymer {[Cu(hfac)2]3(LCP)2}n. Temperature changes induce structural transformations accompanied by a change in the spin state in exchange clusters in the solid [Cu(hfac)2LCP]2 and {[Cu(hfac)2]4(LCP)2}.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c66fb5d5849729e1e6ef3f7787a11852 https://doi.org/10.1007/s11172-013-0312-x Zobrazit plný text záznamu Full text from SpringerLink