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Publikācija: NMR and Quantum-Chemical Studies of Electrostatically Stabilized 1-(N

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Publikācijas valoda English (en)
Nosaukums oriģinālvalodā NMR and Quantum-Chemical Studies of Electrostatically Stabilized 1-(N,N-Substituted-aminiomethyl)spirobi [3-oxo(2,5-dioxa-1-silacyclopentan)]ates (ES-Silanates)
Pētniecības nozare 1. Dabaszinātnes
Pētniecības apakšnozare 1.4. Ķīmija
Autori Alons Lends
E. Olszewska
Sergejs Beļakovs
N. Erchak
E. Liepiņš
Atslēgas vārdi 1-(N,N-Substituted-aminiomethyl)spirobi [3-oxo(2,5-dioxa-1-silacyclopentan)]ates
Anotācija 1-(N,N-substituted-aminiomethyl)spirobi[3-oxo(2,5-dioxa-1-silacyclopentan)]ates were investigated using NMR, X-ray, and quantum-chemical methods. The free activation parameters for the inversion of “ammonium-amine nitrogen” and the chirality change at the pentacoordinated silicon were determined by dynamic NMR spectroscopy. The latter proceeds via the dissociation of Si[BOND]O bonds. The results were confirmed by quantum-chemical calculations, the experimental observation of cross-peaks in 2D-EXSY NMR spectra, and the spirocycle exchange reactions. Transition pathways between the different diastereomers in solution were analyzed.
DOI: 10.1002/hc.21203
Hipersaite: http://onlinelibrary.wiley.com/doi/10.1002/hc.21203/abstract 
Atsauce Lends, A., Olszewska, E., Beļakovs, S., Erchak, N., Liepiņš, E. NMR and Quantum-Chemical Studies of Electrostatically Stabilized 1-(N,N-Substituted-aminiomethyl)spirobi [3-oxo(2,5-dioxa-1-silacyclopentan)]ates (ES-Silanates). Heteroatom Chemistry, 2015, Vol.26, No.1, 12.-28.lpp. e-ISSN 1098-1071. Pieejams: doi:10.1002/hc.21203
ID 21416