Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Zinc(II) Hexafluoroacetylacetonate Complexes of Alkoxyamines : NMR and Kinetic Investigations. First Step for a New Way to Prepare Hybrid Materials. / Audran, Gérard; Bagryanskaya, Elena; Bagryanskaya, Irina и др.
в: ChemistrySelect, Том 2, № 12, 24.04.2017, стр. 3584-3593.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Zinc(II) Hexafluoroacetylacetonate Complexes of Alkoxyamines
T2 - NMR and Kinetic Investigations. First Step for a New Way to Prepare Hybrid Materials.
AU - Audran, Gérard
AU - Bagryanskaya, Elena
AU - Bagryanskaya, Irina
AU - Edeleva, Mariya
AU - Marque, Sylvain R.A.
AU - Parkhomenko, Dmitriy
AU - Tretyakov, Evgeny
AU - Zhivetyeva, Svetlana
PY - 2017/4/24
Y1 - 2017/4/24
N2 - A series of Zn(hfac)2 alkoxyamines (diethyl(2,2-dimethyl-1-(tert-butyl-(1-pyridylethoxy)amino)propyl)phosphonate) coordinated at ortho, meta and para positions of their pyridyl moiety were prepared and their homolysis rate constants kd measured. Up to a 30-fold increase in kd was observed for the meta-(Zn-RR/SS) and para-(Zn-RR/SS) regioisomers. Moreover, the activation is also controlled by the amount of pyridine, used as a ligand competitor. XRD, 1H and 31P NMR spectra show very different structures for each complexes in solid state and in solution depending on the diastereosiomers and on the regioisomers.
AB - A series of Zn(hfac)2 alkoxyamines (diethyl(2,2-dimethyl-1-(tert-butyl-(1-pyridylethoxy)amino)propyl)phosphonate) coordinated at ortho, meta and para positions of their pyridyl moiety were prepared and their homolysis rate constants kd measured. Up to a 30-fold increase in kd was observed for the meta-(Zn-RR/SS) and para-(Zn-RR/SS) regioisomers. Moreover, the activation is also controlled by the amount of pyridine, used as a ligand competitor. XRD, 1H and 31P NMR spectra show very different structures for each complexes in solid state and in solution depending on the diastereosiomers and on the regioisomers.
KW - activation
KW - alkoxyamines
KW - C−ON bond homolysis
KW - rate enhancement
KW - Zn(hfac) complexes
KW - NITROXIDE-MEDIATED POLYMERIZATION
KW - POLYMERS
KW - C-ON bond homolysis
KW - ON BOND HOMOLYSIS
KW - QUATERNIZATION
KW - Zn(hfac)(2) complexes
UR - http://www.scopus.com/inward/record.url?scp=85020052552&partnerID=8YFLogxK
U2 - 10.1002/slct.201700678
DO - 10.1002/slct.201700678
M3 - Article
AN - SCOPUS:85020052552
VL - 2
SP - 3584
EP - 3593
JO - ChemistrySelect
JF - ChemistrySelect
SN - 2365-6549
IS - 12
ER -
ID: 9640047