Two forms of (naphthalen-1-yl)boronic acid
| Autor: | Alexander Y. Nazarenko, Kayleigh Bemisderfer |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
crystal structure
Crystallography Hydrogen bond Plane (geometry) polymorph arylboronic acid General Chemistry Crystal structure Dihedral angle 010402 general chemistry 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Research Communications hydrogen-bond network chemistry.chemical_compound arylboronic acid chemistry QD901-999 Group (periodic table) General Materials Science Boronic acid Monoclinic crystal system |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 9, Pp 1285-1289 (2016) |
| ISSN: | 2056-9890 |
| Popis: | Two polymorphs of the title compound, C10H9BO2, were prepared by recystallization from different solvents at room temperature. Both forms demonstrate nearly identical molecular structures with all naphthalene group atoms located in one plane and all boronic acid atoms in another. In each extended structure, molecules form dimers, connected via two O—H⋯O hydrogen bonds. The dimers are connected by further O—H⋯O hydrogen bonds, forming layered networks. The resulting layers are practically identical in both forms but are shifted along the [010] axis in the two forms, resulting in a slightly more effective packing for the monoclinic structure compared to the orthorhombic form. Two polymorphs of the title compound, C10H9BO2, were prepared by recystallization from different solvents at room temperature. Both forms demonstrate nearly identical molecular structures with all naphthalene group atoms located in one plane and all boronic acid atoms in another: the dihedral angles between these planes are 39.88 (5) and 40.15 (5)° for the two asymmetric molecules of the orthorhombic form and 40.60 (3)° for the single asymmetric molecule in the monoclinic form. In each extended structure, molecules form dimers, connected via two O—H⋯O hydrogen bonds. The dimers are connected by further O—H⋯O hydrogen bonds, forming layered networks in the (001) plane and the (100) plane in the orthorhombic and monoclinic forms, respectively. The resulting layers are practically identical in both forms. However, these layers are shifted along the [010] axis in the two forms, resulting in a slightly more effective packing for monoclinic structure (packing index = 0.692) compared to the orthorhombic form (0.688). |
| Databáze: | OpenAIRE |
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