C3-symmetry Mo3S4 aminophosphino clusters combining three sources of stereogenicity: stereocontrol directed by hydrogen bond interactions and ligand configuration
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Otros documentos de la autoría: Llusar, Rosa; Safont Villarreal, Vicent Sixte; Feliz Rodríguez, Marta; Alfonso Padilla, Carmina
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comunitat-uji-handle3:10234/8638
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INVESTIGACIONMetadatos
Título
C3-symmetry Mo3S4 aminophosphino clusters combining three sources of stereogenicity: stereocontrol directed by hydrogen bond interactions and ligand configurationAutoría
Fecha de publicación
2016Editor
Royal Society of ChemistryISSN
1477-9226; 1477-9234Cita bibliográfica
ALFONSO, Carmina, et al. C 3-symmetry Mo 3 S 4 aminophosphino clusters combining three sources of stereogenicity: stereocontrol directed by hydrogen bond interactions and ligand configuration. Dalton Transactions, 2016, vol. 45, no 18, p. 7829-7835Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.rsc.org/en/content/articlepdf/2016/dt/c6dt00755dVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
A diastereoselective synthesis of proline containing aminophosphino cubane-type Mo3S4 clusters,
(P)-[Mo3S4Cl3((1S,2R)-PPro)3]Cl ((P)-[Mo-(SN,RC)]Cl) and (P)-[Mo3S4Cl3((1S,2S)-PPro)3]Cl ((P)-[Mo-(SN,SC)]
Cl), has ... [+]
A diastereoselective synthesis of proline containing aminophosphino cubane-type Mo3S4 clusters,
(P)-[Mo3S4Cl3((1S,2R)-PPro)3]Cl ((P)-[Mo-(SN,RC)]Cl) and (P)-[Mo3S4Cl3((1S,2S)-PPro)3]Cl ((P)-[Mo-(SN,SC)]
Cl), has been achieved in high yields by reacting the corresponding enantiomerically pure PPro ((R)- and
(S)-2-[(diphenylphosphino)methyl]pyrrolidine) ligands with the Mo3S4Cl4(PPh3)3(H2O)2 complex. Circular
dichroism, nuclear magnetic resonance and X-ray techniques confirm that the (P)-[Mo-(SN,RC)]Cl and
(P)-[Mo-(SN,SC)]Cl cluster cations are diastereoisomers which combine three sources of stereogenicity
provided by the cluster framework, one carbon atom of the aminophosphine ligand and the nitrogen
stereogenic center. The higher stability of the (P)-[Mo-(SN,SC)]+ cation is due to stabilizing vicinal Cl⋯HN
interactions as well as due to the cis-fused conformation of the bicyclic system formed upon
coordination of the aminophosphine ligand. [-]
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© The Royal Society of Chemistry
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