Preparation, Crystal Structures, and Properties of a Series of Crystalline Tetra(4-sulfonatophenyl)porphyrinato Histidine 4f-3d Porphyrinic Compounds
| Autor: | Zhuan-Xia Zhang, Hua-Long Chen, Yan Sui, Dong-Sheng Liu, Long-Zhen Lin, Wen-Tong Chen |
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| Rok vydání: | 2018 |
| Předmět: |
Lanthanide
010405 organic chemistry Chemistry General Chemistry Crystal structure 010402 general chemistry Condensed Matter Physics 01 natural sciences Porphyrin Magnetic susceptibility 0104 chemical sciences Square antiprism Crystallography chemistry.chemical_compound Antiferromagnetism General Materials Science Cobalt ion binding Pyrrole |
| Zdroj: | Crystal Growth & Design. 18:5456-5464 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.8b00824 |
| Popis: | A series of novel 4f-3d crystalline porphyrinic compounds, {[Co(TPPS)]2[Ln(Histidine)(H2O)][Ln(H3O)3]}n·nH2O (Ln = Sm (1), Eu (2), Dy (3); TPPS = 5,10,15,20-tetra(4-sulfonatophenyl)porphyrinato) with TPPS and histidine as mixed ligands, have been prepared and characterized by single-crystal X-ray diffraction technique. Complexes 1–3 are isomorphous and characteristic of a three-dimensional (3D) framework with the lanthanide ions in two kinds of coordination geometries, i.e., eightfold square antiprism and ninefold monocapped square antiprism. The porphyrin macrocycles adopt a saddle-distorted nonplanar conformation with an embedded cobalt ion binding to four pyrrole nitrogen atoms. As revealed by the photoluminescence measurement, they exhibit blue emission. Variable-temperature magnetic susceptibility reveals that complexes 1–3 are antiferromagnetic. Their FTIR, CV, DPV, and UV/vis results are also studied in detail. |
| Databáze: | OpenAIRE |
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