Kumar, D. Krishna ; Das, Amitava ; Dastidar, Parthasarathi (2006) One-dimensional chains, two-dimensional corrugated sheets having a cross-linked helix in metal-organic frameworks: exploring hydrogen-bond capable backbones and ligating topologies in mixed ligand systems Crystal Growth & Design, 6 (8). pp. 1903-1909. ISSN 1528-7483
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Official URL: http://pubs.acs.org/doi/abs/10.1021/cg0600344
Related URL: http://dx.doi.org/10.1021/cg0600344
Abstract
Six intriguing metal-organic coordination polymers, {Co(μL1)(μL2)(H2O)}n (1a), {Zn(μL1)(μL2)(H2O)}n (1b), {[Zn(H2O)4(μL1')Zn(L2)2]· H2O}n (2), {[Co(H2O)4(μL1")Co(L2)2(H2O)2]· H2O}n (3), {Zn(μL1")(μL2)}n (4), {[Cd(H2O)(μL1")(μL2)· 2H2O]}n (5), and {[Co(H2O)4(μL1")Co(L3)2](H2O)2]· 1.3H2O]}n (6) (L1 = N-(4-pyridyl)isonicotinamide, L1' = N-(3-pyridyl)isonicotinamide, L1" = N-(4-pyridyl)nicotinamide, L2 = maleate, L3 = succinate), have been synthesized and characterized by single-crystal X-ray diffraction. 1a, 1b, 4, and 5 display a grid architecture, whereas 2, 3, and 6 display a one-dimensional polymeric chain. 5 is an example of a chiral metal-organic framework (due to the presence of a right-handed helix) assembled from achiral components. The supramolecularly recognizable backbone, namely, secondary amide of N-donor ligands does not show typical self-recognition. This study represents one of the limited explorative studies on counterion free mixed ligand systems containing an N-donor exo-bidentate ligand with a supramolecularly recognizable backbone and O-donor carboxylate ligand.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 59998 |
| Deposited On: | 08 Sep 2011 10:20 |
| Last Modified: | 08 Sep 2011 10:20 |
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