Unknown

Dataset Information

0

Design of a double-decker coordination cage revisited to make new cages and exemplify ligand isomerism.

ABSTRACT: The complexation study of cis-protected and bare palladium(II) components with a new tridentate ligand, i.e., pyridine-3,5-diylbis(methylene) dinicotinate (L1) is the focus of this work. Complexation of cis-Pd(tmeda)(NO3)2 with L1 at a 1:1 or 3:2 ratio produced [Pd(tmeda)(L1)](NO3)2 (1a). The reaction mixture obtained at 3:2 ratio upon prolonged heating, produced a small amount of [Pd3(tmeda)3(L1)2](NO3)6 (2a). Complexation of Pd(NO3)2 with L1 at a 1:2 or 3:4 ratios afforded [Pd(L1)2](NO3)2 (3a) and [(NO3)2@Pd3(L1)4](NO3)4 (4a), respectively. The encapsulated NO3 - ions of 4a undergo anion exchange with halides (F-, Cl- and Br- but not with I-) to form [(X)2@Pd3(L1)4](NO3)4 5a-7a. The coordination behaviour of ligand L1 and some dynamic properties of these complexes are compared with a set of known complexes prepared using the regioisomeric ligand bis(pyridin-3-ylmethyl)pyridine-3,5-dicarboxylate (L2). Importantly, a ligand isomerism phenomenon is claimed by considering complexes prepared from L1 and L2.

SUBMITTER: Samantray S 

PROVIDER: S-EPMC6541329 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Design of a double-decker coordination cage revisited to make new cages and exemplify ligand isomerism.

Samantray Sagarika S   Bandi Sreenivasulu S   Chand Dillip K DK  

Beilstein journal of organic chemistry 20190521

The complexation study of <i>cis</i>-protected and bare palladium(II) components with a new tridentate ligand, i.e., pyridine-3,5-diylbis(methylene) dinicotinate (<b>L1</b>) is the focus of this work. Complexation of <i>cis</i>-Pd(tmeda)(NO<sub>3</sub>)<sub>2</sub> with <b>L1</b> at a 1:1 or 3:2 ratio produced [Pd(tmeda)(<b>L1</b>)](NO<sub>3</sub>)<sub>2</sub> (<b>1a</b>). The reaction mixture obtained at 3:2 ratio upon prolonged heating, produced a small amount of [Pd<sub>3</sub>(tmeda)<sub>3</  ...[more]

Similar Datasets

Unknown Allosteric Guest Binding in Chiral Zirconium(IV) Double Decker Porphyrin Cages.
| S-EPMC7898692 | biostudies-literature
Unknown Synthesis and Characterization of Unsymmetrical Double-Decker Siloxane (Basket Cage).
| S-EPMC6930635 | biostudies-literature
Unknown Isomerism in double-pillared-layer coordination polymers - structures and photoreactivity.
| S-EPMC5947723 | biostudies-literature
Unknown Double-Decker Silsesquioxanes Self-Assembled in One-Dimensional Coordination Polymeric Nanofibers with Emission Properties.
| S-EPMC8289186 | biostudies-literature
Unknown Double-decker cage reduces mount frequency and ejaculation latency, resulting in reduced weight loss in male rats after mating behavior.
| S-EPMC11534486 | biostudies-literature
Unknown Exploiting Coordination Isomerism for Controlled Self-Assembly.
| S-EPMC6856968 | biostudies-literature
Unknown Interplaying coordination and ligand effects to break or make adsorption-energy scaling relations.
| S-EPMC10191023 | biostudies-literature
Unknown Guest-Modulated Circularly Polarized Luminescence by Ligand-to-Ligand Chirality Transfer in Heteroleptic Pd<sup>II</sup> Coordination Cages.
| S-EPMC9544203 | biostudies-literature
Unknown Topological prediction of palladium coordination cages.
| S-EPMC8162455 | biostudies-literature
Unknown Positional Isomerism in the N^N Ligand: How Much Difference Does a Methyl Group Make in [Cu(P^P)(N^N)]+ Complexes?
| S-EPMC7356218 | biostudies-literature