Abstract
Self-assembling coordination polymers based on PdII and Cu II metal ions were prepared from complexation of a bent-shaped bispyridine ligand and a corresponding transition metal. These coordination polymers were observed to self-assemble into supramolecular structures that differ significantly depending on the coordination geometry of the metal center. The polymer based on PdII self-assembles into a layer structure formed by bridging bispyri dine ligands connected in a trans-position of the square-planar coordination geometry of metal center. In contrast, the polymer based on CuII adopts a double-helical conformation with regular grooves, driven by interstranded, copper-chloride dimeric interaction. The double-stranded helical organization is further confirmed by structure optimization from density functional theory with aromatic framework, showing that the optimized double-helical structure is energetically favorable and consistent with the experimental results. These results demonstrate that weak metal-ligand bridging interactions can provide a useful strategy to construct stable double-stranded helical nanotubes.
| Original language | English |
|---|---|
| Pages (from-to) | 3883-3888 |
| Number of pages | 6 |
| Journal | Chemistry - A European Journal |
| Volume | 14 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2008 Apr 28 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Organic Chemistry
Cite this
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Folding of coordination polymers into double-stranded helical organization. / Kim, Ho Joong; Lee, Eunji; Kim, Min Gyu; Kim, Min Cheol; Lee, Myongsoo; Sim, Eunji.
In: Chemistry - A European Journal, Vol. 14, No. 13, 28.04.2008, p. 3883-3888.Research output: Contribution to journal › Article
TY - JOUR
T1 - Folding of coordination polymers into double-stranded helical organization
AU - Kim, Ho Joong
AU - Lee, Eunji
AU - Kim, Min Gyu
AU - Kim, Min Cheol
AU - Lee, Myongsoo
AU - Sim, Eunji
PY - 2008/4/28
Y1 - 2008/4/28
N2 - Self-assembling coordination polymers based on PdII and Cu II metal ions were prepared from complexation of a bent-shaped bispyridine ligand and a corresponding transition metal. These coordination polymers were observed to self-assemble into supramolecular structures that differ significantly depending on the coordination geometry of the metal center. The polymer based on PdII self-assembles into a layer structure formed by bridging bispyri dine ligands connected in a trans-position of the square-planar coordination geometry of metal center. In contrast, the polymer based on CuII adopts a double-helical conformation with regular grooves, driven by interstranded, copper-chloride dimeric interaction. The double-stranded helical organization is further confirmed by structure optimization from density functional theory with aromatic framework, showing that the optimized double-helical structure is energetically favorable and consistent with the experimental results. These results demonstrate that weak metal-ligand bridging interactions can provide a useful strategy to construct stable double-stranded helical nanotubes.
AB - Self-assembling coordination polymers based on PdII and Cu II metal ions were prepared from complexation of a bent-shaped bispyridine ligand and a corresponding transition metal. These coordination polymers were observed to self-assemble into supramolecular structures that differ significantly depending on the coordination geometry of the metal center. The polymer based on PdII self-assembles into a layer structure formed by bridging bispyri dine ligands connected in a trans-position of the square-planar coordination geometry of metal center. In contrast, the polymer based on CuII adopts a double-helical conformation with regular grooves, driven by interstranded, copper-chloride dimeric interaction. The double-stranded helical organization is further confirmed by structure optimization from density functional theory with aromatic framework, showing that the optimized double-helical structure is energetically favorable and consistent with the experimental results. These results demonstrate that weak metal-ligand bridging interactions can provide a useful strategy to construct stable double-stranded helical nanotubes.
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U2 - 10.1002/chem.200800056
DO - 10.1002/chem.200800056
M3 - Article
C2 - 18393347
AN - SCOPUS:51549086978
VL - 14
SP - 3883
EP - 3888
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 13
ER -