Cobalt phenylenediacetate coordination polymers containing long-spanning dipyridyl ligands: rectangular grid, primitive cubic, and 5-connected Archimedean layered net topologiesElectronic supplementary information (ESI) available: Additional molecular graphics and magnetic and thermal analysis plots. CCDC reference numbers 752667, 714971, and 752668. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/b925239h
Divalent cobalt coordination polymers containing both phenylenediacetate (phda) and bis(4-pyridylmethyl)piperazine (4-bpmp) ligands display differing dimensionalities and topologies. The para -substituted 1,4-phda ligand afforded {[Co(1,4-phda)(4-bpmp)(H 2 O) 2 ]·2H 2 O} n ( 1 ), a layered phase wit...
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| Main Authors | , , , , |
|---|---|
| Format | Journal Article |
| Language | English |
| Published |
25.05.2010
|
| Online Access | Get full text |
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| Summary: | Divalent cobalt coordination polymers containing both phenylenediacetate (phda) and bis(4-pyridylmethyl)piperazine (4-bpmp) ligands display differing dimensionalities and topologies. The
para
-substituted 1,4-phda ligand afforded {[Co(1,4-phda)(4-bpmp)(H
2
O)
2
]·2H
2
O}
n
(
1
), a layered phase with standard (4,4) rhomboid grid topology. Use of the
meta
-substituted 1,3-phda ligand generated [Co(1,3-phda)(4-bpmp)]
n
(
2
), which has [Co(1,3-phda)]
n
layers pillared by pairs of 4-bpmp ligands into a three-dimensional (3D) coordination polymer with primitive cubic topology. Antiferromagnetically coupled {Co
2
(CO
2
)
2
} dinuclear units (
J
= −2.04(4) cm
−1
) are embedded within the structure of
2
. The
ortho
-substituted derivative {[Co(1,2-phda)(4-bpmp)
1.5
(H
2
O)](H
2
4-bpmp)
0.5
(ClO
4
)·12H
2
O}
n
(
3
) manifests an intriguing layered structure with 5-connected cobalt atom nodes and an Archimedean 3
3
4
4
5
3
cem
topology with triangular and rectangular circuits.
Coordination polymers containing both diphenylacetate (phda) and bis(4-pyridylmethyl)piperazine (4-bpmp) have different 2D and 3D topologies. {[Co(1,2-phda)(4-bpmp)
1.5
(H
2
O)](H
2
4-bpmp)
0.5
(ClO
4
)·12H
2
O}
n
(
3
) manifests a 5-connected Archimedean layered topology. |
|---|---|
| Bibliography: | For ESI and crystallographic data in CIF or other electronic format see DOI Electronic supplementary information (ESI) available: Additional molecular graphics and magnetic and thermal analysis plots. CCDC reference numbers and 10.1039/b925239h 752668 714971 , 752667 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/b925239h |