AI Article Synopsis
- The hydrothermal reaction of chromium nitrate, lanthanide oxide, and iminodiacetate acid produced new coordination polymers, identified as {[LnCr(IDA)2(C2O4)]}n (with Ln being europium or samarium).
- These complexes are the first examples of 3D coordination polymers that feature both 3d and 4f metal ions interpenetrating within the structure.
- The resulting materials exhibit thermal stability up to 327°C for the europium version and 360°C for the samarium version, along with strong energy transfer from lanthanide ions to chromium ions, showing paramagnetic behavior.
Article Abstract
The hydrothermal reaction of Cr(NO3)3, Ln2O3, and iminodiacetate acid (H(2)IDA) in the molar ratio of 1:1:3 produced {[LnCr(IDA)2(C2O4)]}n (Ln = Eu, 1; Sm, 2), which represent the first 3D 3d-4f interpenetrating coordination polymers. In the reaction, the H(2)IDA ligands partly decompose into oxalate anions (ox), which connect Ln(III) ions to form 1D {Ln(ox)}n chains. Each of the Cr(III) ions is tridentate-coordinated by two IDA ligands, which act as tetradentate metalloligands to link {Ln(ox)}n chains to form 3D open networks. The two open networks interpenetrate each other to form nonporous products. 1 and 2 are thermally stable up to 327 and 360 degrees C, respectively. Both of complexes show normally paramagnetic behavior. The luminescent results imply that the energy transfers from Ln(III) to Cr(III) are strong.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ic060787f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!