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| Titel: |
Novel organophosphorus compounds; synthesis, spectroscopy and X-ray crystallography |
| Auteur: |
Shariatinia, Zahra Sohrabi, Marzieh Yousefi, Mohammad Koval, Tomas Dusek, Michal |
| Verschenen in: |
Main group chemistry |
| Paginering: | Jaargang 11 (2012) nr. 2 pagina's 125-133 |
| Jaar: |
2012-06-18 |
| Inhoud: |
New organophosphorus compounds with formula C6H5C(O)NHP(O)(2,4-OCH3-C6H3-NH)2 (1), CCl3C(O)NHP(O)(Cl)[N(C2H5)2] (2) and CF3C(O)NHP(O)(C6H5)2 (3) were synthesized and characterized by 1H, 13C, 31P NMR, IR spectroscopy and elemental analysis. The 31P{1H} NMR spectra indicate the most up field P atom in 2 exhibiting the most electron donation of the Cl atom which is due to its resonance effect. Among compounds 1–3, the ν(P=O) of 2 is the weakest while its ν(C=O) is the strongest one. This indicates that between two resonance forms (OH)C=N-P(O) (I) and O=CN-P(OH) (II), the interaction II is more preferred in 2. The structure of compound 4, P(O)(NC4H8N-C6H5)3, was determined by X-ray crystallography. In this molecule, a one dimensional polymeric chain is produced in the crystalline lattice by intermolecular weak C-H...O hydrogen bonds. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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