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Hydrothermal syntheses, crystal structures and properties of novel quinone biradical and mixed-valence copper coordination polymer with semiquinone radical ligand generated in situ
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yong, Guo-Ping Zhang, Yiman Zhang, Bei Chao |
| Copyright Year | 2012 |
| Abstract | A novel quinone biradical (1) was hydrothermally synthesized through ZnCl2 mediated decarboxylation and carbon–carbon coupling reactions using the 2-(imidazo[1,2-a]pyridin-2-yl)-2-oxoacetic acid radical. Interestingly, when CuCl2 was used instead of ZnCl2, a new mixed-valence copper coordination polymer (2) with semiquinone radical anion ligand was obtained. The possible formation mechanism of these two compounds is proposed. The EPR and magnetic susceptibility data suggest that 1 is a biradical. The EPR and XPS results support that 2 is a mixed-valence copper coordination polymer. The quinone biradical 1 forms a one-dimensional (1D) columnar stacking chain. The coordination polymer 2 consists of a two-dimensional (2D) layered framework constructed by 1D corrugated double-stranded stair-like inorganic [CuCl]n chains and bridged semiquinone radical anion ligands. 1 and 2 exhibit antiferromagnetic coupling interactions and different luminescent colors. |
| Starting Page | 8620 |
| Ending Page | 8625 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C2CE26418H |
| Volume Number | 14 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/ce/c2/c2ce26418h/c2ce26418h.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C2CE26418H |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
