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Sc(3)CH@C(80): selective (13)C enrichment of the central carbon atom†
Sc(3)CH@C(80) is synthesized and characterized by (1)H, (13)C, and (45)Sc NMR. A large negative chemical shift of the proton, −11.73 ppm in the I(h) and −8.79 ppm in the D(5h) C(80) cage isomers, is found. (13)C satellites in the (1)H NMR spectrum enabled indirect determination of the (13)C chemical...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4902131/ https://www.ncbi.nlm.nih.gov/pubmed/27109443 http://dx.doi.org/10.1039/c5cc10025a |