Journal article
Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congener
Dalton Transactions, (8), pp 1587-1595
04 Apr 2003
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Abstract
New oximate-bridged tetranuclear nickel(ii) complexes of compositions {Ni(Dien)}2(μ3-OH)2{Ni2(Moda)4}(ClO4)2·Solv (Solv = H2O, 1a; Solv = 2CH3NO2, 1b; Solv = 2H2O·2C4H8O2, 1c), {Ni(Sdien)}2(μ3-OH)2{Ni2(Moda)4}(ClO4)2·H2O (2), {Ni(Odien)}2(μ3-OH)2{Ni2(Moda)4}(ClO4)2·0.6H2O (3), {Ni(Dien)}2(μ3-OH)2{Ni2(Inaf)4}(ClO4)2·CH3NO2 (4) and {Ni(Odien)}2(μ3-OH)2{Ni2(Inaf)4}(ClO4)2·2NaClO4·2H2O (5) and the dinuclear complex (Ni{Odien})2(Moda)2(ClO4)2 (6) have been prepared (Dien = 1,5-diamino-3-azapentane, Odien = 1,5-diamino-3-oxapentane, Sdien = 1,5-diamino-3-thiapentane, ModaH = butane-2,3-dione monooxime, InafH = phenylglyoxaldoxime). X-ray examination revealed similar structures for 1a, 1b, 1c, 2 and 3, with a rhombic “chair” (out-of-phase “butterfly”) arrangement of the four nickel(ii) atoms and two hydroxo-bridges. The complexes were examined by magnetochemistry, UV-VIS spectroscopy and voltammetry. 1–3 display antiferromagnetic coupling of the central with the terminal nickel(ii) atoms and ferromagnetic spin alignment between the central nickel(ii) atoms. In contrast, all the spin exchanges in 4 and 5 were found to be antiferromagnetic, as is the coupling in dinuclear 6.
Electronic supplementary information (ESI) available: mass spectra, χT vs. T, response of magnetic properties, low-lying spin levels and UV-VIS data. See http://www.rsc.org/suppdata/dt/b3/b300539a
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Details
- Title
- Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congener
- Creators
- Vitaly V Pavlishchuk - L.V.Pisarzhevskii Institute of Physical ChemistrySergey V Kolotilov - L.V.Pisarzhevskii Institute of Physical ChemistryAnthony W Addison - Drexel UniversityMichael J Prushan - Drexel UniversityDieter Schollmeyer - Johannes Gutenberg University MainzLaurence K Thompson - Memorial University of NewfoundlandThomas Weyhermüller - Max Planck Institute for Chemical Energy ConversionEugeny A Goreshnik - Le Mans Université
- Publication Details
- Dalton Transactions, (8), pp 1587-1595
- Publisher
- Royal Society of Chemistry
- Number of pages
- 9
- Resource Type
- Journal article
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000182537000022
- Scopus ID
- 2-s2.0-4744352078
- Other Identifier
- 991019168857504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear