Unusual penta- and hexanuclear Ni(ii)-based silsesquioxane polynuclear complexes

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] (1) and pentanuclear [(PhSiO1,5)10(NiO)5(NaOH)(DMF)7] (2) cage-like silsesquioxanes. Their specific structures were studied by single crystal X-ray diffraction and topological analyses. Compound 2 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. © The Royal Society of Chemistry 2016.

Authors
Bilyachenko A.N. 1, 2 , Yalymov A.I.1 , Korlyukov A.A.1, 3 , Long J.4 , Larionova J.4 , Guari Y.4 , Vologzhanina A.V.1 , Es'kova M.A.1 , Shubina E.S.1 , Levitsky M.M.1
Journal
Dalton Transactions
Publisher
Royal Society of Chemistry
Number of issue
17
Language
English
Pages
7320-7327
Status
Published
Link
External link
DOI
10.1039/C6DT00113K
Volume
45
Year
2016
Organizations
  • 1 A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, Moscow, Russian Federation
  • 2 People's Friendship University of Russia, Miklukho-Maklay Str. 6, Moscow, 117198, Russian Federation
  • 3 Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow, Russian Federation
  • 4 Institut Charles Gerhardt de Montpellier (ICGM), UMR5253, Equipe IMNO, Université de Montpellier Site Triolet Place Eugène Bataillon, Montpellier cedex 5, 34095, France
Keywords
Alkali metals; Single crystals; Spin glass; X ray diffraction; Pentanuclear; Polynuclear complexes; Siloxanolate; Silsesquioxanes; Single crystal x-ray diffraction; Slow relaxations; Spin-glass-like behaviors; Topological analysis; Nickel
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