title: Unusual penta- and hexanuclear Ni(ii)-based silsesquioxane polynuclear complexes.
abstract: Fine-tuning of the reaction between alkali metal siloxanolate [PhSi(O)ONa]n and [Ni(NH3)6]Cl2 allowed us to design new hexa- [(PhSiO1,5)12(NiO)6(H2O)(DMSO)9] () and pentanuclear [(PhSiO1,5)10(NiO)5(NaOH)(DMF)7] () cage-like silsesquioxanes. Their specific structures were studied by single crystal X-ray diffraction and topological analyses. Compound is the first example of a pentanuclear "cylinder"-like metallasilsesquioxane. Magnetic property investigations demonstrate the presence of a slow relaxation of the magnetization, induced by spin glass-like behavior in both cases.
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru and People's Friendship University of Russia, Miklukho-Maklay Str., 6, 117198 Moscow, Russia.
authors.forename: Alexey N
authors.initials: AN
authors.lastname: Bilyachenko
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru.
authors.forename: Alexey I
authors.initials: AI
authors.lastname: Yalymov
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru and Pirogov Russian National Research Medical University, Ostrovitianov str., 1, Moscow, Russia.
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Korlyukov
authors.affiliation: Institut Charles Gerhardt de Montpellier (ICGM), UMR5253, Equipe IMNO, Université de Montpellier, Site Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France. joulia.larionova@univ-montp2.fr.
authors.forename: Jérôme
authors.initials: J
authors.lastname: Long
authors.affiliation: Institut Charles Gerhardt de Montpellier (ICGM), UMR5253, Equipe IMNO, Université de Montpellier, Site Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France. joulia.larionova@univ-montp2.fr.
authors.forename: Joulia
authors.initials: J
authors.lastname: Larionova
authors.affiliation: Institut Charles Gerhardt de Montpellier (ICGM), UMR5253, Equipe IMNO, Université de Montpellier, Site Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France. joulia.larionova@univ-montp2.fr.
authors.forename: Yannick
authors.initials: Y
authors.lastname: Guari
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru.
authors.forename: Anna V
authors.initials: AV
authors.lastname: Vologzhanina
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru.
authors.forename: Marina A
authors.initials: MA
authors.lastname: Es'kova
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru.
authors.forename: Elena S
authors.initials: ES
authors.lastname: Shubina
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov str., 28, Moscow, Russia. bilyachenko@ineos.ac.ru levitsk@ineos.ac.ru.
authors.forename: Mikhail M
authors.initials: MM
authors.lastname: Levitsky