English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/56538
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Título

13C and 15N NMR shieldings of 1,2,4-diazaphospholes in the solid state and in solution

AutorClaramunt, Rosa M.; López, Concepción; Schmidpeter, A.; Willhalm, A.; Elguero, José ; Alkorta, Ibon
Fecha de publicación2001
EditorIOS Press
CitaciónSpectroscopy 15(1): 27-32 (2001)
ResumenThe solid state 13C and 15N CPMAS NMR spectra of 3,5-di-tert-butyl-1,2,4-diazaphosphole 4 and 3,5-diphenyl-1,2,4-diazaphosphole 5 have been recorded. The X-ray structure of the first compound was already known (it is a cyclic dimer with localized N-H protons) while the structure of the second cannot be determined due to the difficulty to grow suitable single crystals. NMR results pointed out that 4 is a >classical> compound while 5 is probably a tetramer showing Intermolecular Solid-State Proton Transfer (ISSPT). GIAO/ab initio calculations have been carried out to estimate the absolute 1H, 13C and 15N shieldings. The agreement with the experimental chemical shifts is good enough to assign the signals of carbons C-3 and C-5.
URIhttp://hdl.handle.net/10261/56538
DOI10.1155/2001/475243
Identificadoresissn: 0712-4813
Aparece en las colecciones: (IQM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
solid_state_Claramunt.pdf1,25 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.