Weak ferromagnetism derived from spin canting in an amido-bridged homochiral Mn() 1-D coordination polymer
A homochiral one-dimensional (1D) Mn( iii ) coordination polymer [MnL] n ( 1 ) was synthesised employing the N 3 O-donor tetradentate ligand (L = 2-hydroxy- N -[2-[[(2-aminophenyl)methylene]amino]-2-methylpropyl]-benzamide). The X-ray structure of 1 and its magnetic properties were investigated in d...
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Published in | Dalton transactions : an international journal of inorganic chemistry Vol. 48; no. 24; pp. 8617 - 8622 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Royal Society of Chemistry
2019
|
Subjects | |
Online Access | Get full text |
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Summary: | A homochiral one-dimensional (1D) Mn(
iii
) coordination polymer [MnL]
n
(
1
) was synthesised employing the N
3
O-donor tetradentate ligand (L = 2-hydroxy-
N
-[2-[[(2-aminophenyl)methylene]amino]-2-methylpropyl]-benzamide). The X-ray structure of
1
and its magnetic properties were investigated in detail. The crystal structure of
1
shows a homochiral helical arrangement in which spontaneous resolution has occurred, despite the ligand being achiral. Magnetic characterization revealed an antiferromagnetic interaction between manganese(
iii
) ions (
J
= −2.48 cm
−1
,
g
= 1.96) that leads to an antiferromagnetic spin-ordering phase transition at
T
N
7 K. Noteworthily,
1
exhibits weak ferromagnetism with a relatively large coercive field of 3.0 kOe based on the spin canting, indicating the formation of a homochiral weak ferromagnet.
An amido-bridged homochiral one-dimensional (1D) Mn(
iii
) coordination polymer behaves as a weak ferromagnet arising from spin canting with a coercive field of 3.0 kOe. |
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Bibliography: | Electronic supplementary information (ESI) available. CCDC 1862114 10.1039/c9dt00593e For ESI and crystallographic data in CIF or other electronic format see DOI 1862151 and ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1477-9226 1477-9234 |
DOI: | 10.1039/c9dt00593e |