NDLI: A water sensitive ferromagnetic $[Ni(cyclam)]_{2}[Nb(CN)

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sieklucka, Barbara Nowicka, Beata Lasocha, Wieslaw Balanda, Maria Reczynski, Mateusz Koziel, Marcin Majcher, Anna M. Nitek, Wojciech
Description	Author Affiliation: Nowicka B ( Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland. beata.nowicka@uj.edu.pl)
Abstract	Reaction between $[Ni(cyclam)]^{2+}$ and $[W(CN)_{8}]^{4−}$ leads to the formation of a 3D diamond -like network $[Ni(cyclam)]_{2}[W(CN)_{8}]·3.5H_{2}O$ (1). The structure is characterised by a network of intersecting channels of 3–4 Å in diameter, filled with crystallisation water , most of which is released upon drying in air, causing the crystals to collapse. Analogous compound $[Ni(cyclam)]_{2}[Nb(CN)_{8}]·3.5H_{2}O$ (2), based on paramagnetic Nb(IV), could only be obtained as a powder, due to the decomposition of the $[Nb(CN)_{8}]^{4−}$ complex under slow diffusion conditions. It shows long-range magnetic ordering with $T_{C}$ = 11.8 K and magnetic hysteresis at 2 K. These properties are lost upon drying in air. After rehydration differently shaped hysteresis appears, which together with AC susceptibility measurements suggests the formation of a multiphase system. Subsequent dehydration–rehydration experiments show partial reversibility.
ISSN	14779226
Issue Number	7
Volume Number	42
e-ISSN	13645447
Journal	Dalton Trans.
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2013-02-21
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Cyclamates Chemistry Magnetic Fields Organometallic Compounds Water Chemical Synthesis Models, Molecular Journal Article Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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