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Synthesis, crystal structure and magnetic properties of two coordination polymers with 4-(4-carboxyphenyl)-4,2′:6′,4″-terpyridine ligand
- Source :
- Inorganic Chemistry Communications. 42:38-41
- Publication Year :
- 2014
- Publisher :
- Elsevier BV, 2014.
-
Abstract
- MnII and CoII salts reacting with 4-(4-carboxyphenyl)-4,2′:6′,4″-terpyridine (4-Hcptpy) in DMF/H2O afford two complexes, [Mn(4-cptpy)(DMF)(H2O)2]n·n(4-cptpy)·nDMF (1) and [Co(4-cptpy)2(H2O)2]n (2). Complex 1 is a 1D ribbon coordination polymer assembled by Mn2 dimer and tridentate 4-cptpy ligand. The guest 4-cptpy anion is embedded in 3D supramolecular architecture with strong hydrogen bonds. Complex 2 is a 1D linear chain coordination polymer with quadrangled pores. The complex 1 releases H2O and DMF in 87–150 °C, and the anhydrous [Mn(4-cptpy)]n·n(4-cptpy) remains thermally stable until 403 °C. Variable temperature magnetic susceptibility study in 2–300 K proves that a weak antiferromagnetic interaction exists in the (μ-O2CR)2Mn2 core.
Details
- ISSN :
- 13877003
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Inorganic Chemistry Communications
- Accession number :
- edsair.doi...........ae0c2271d5ed7ae16ce367c5d81cd172