Journal article
Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congenerElectronic 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
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
(μ
3
-OH)
2
{Ni
2
(Moda)
4
}(ClO
4
)
2
·Solv (Solv = H
2
O,
1a
; Solv = 2CH
3
NO
2
,
1b
; Solv = 2H
2
O·2C
4
H
8
O
2
,
1c
), {Ni(Sdien)}
2
(μ
3
-OH)
2
{Ni
2
(Moda)
4
}(ClO
4
)
2
·H
2
O (
2
), {Ni(Odien)}
2
(μ
3
-OH)
2
{Ni
2
(Moda)
4
}(ClO
4
)
2
·0.6H
2
O (
3
), {Ni(Dien)}
2
(μ
3
-OH)
2
{Ni
2
(Inaf)
4
}(ClO
4
)
2
·CH
3
NO
2
(
4
) and {Ni(Odien)}
2
(μ
3
-OH)
2
{Ni
2
(Inaf)
4
}(ClO
4
)
2
·2NaClO
4
·2H
2
O (
5
) and the dinuclear complex (Ni{Odien})
2
(Moda)
2
(ClO
4
)
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
.
Ni(
ii
)(ClO
4
)
2
reacts with deprotonated oximates and tridentate amines producing tetra- and dinuclear Ni(
ii
) complexes. The image shows a Ni
4
N
4
O
6
"chair" core (black = Ni, grey = N, white = O).
Metrics
Details
- Title
- Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congenerElectronic 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
- 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 of MainzLaurence K Thompson - St. John's UniversityThomas Weyhermüller - Max Planck SocietyEugeny A Goreshnik - Université du Maine
- 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