Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition
Marina V. Fomina
1
,
Artem I. Vedernikov
1
,
Natalia A Lobova
1
,
Stepan S. Basok
3
,
Yuri A. Strelenko
4
,
Michael V Alfimov
1
,
Judith A. Howard
5
3
A. V. Bogatskiy Physicochemical Institute, National Academy of Sciences of Ukraine, Lustdorfskaya doroga 86, Odessa 65080, Ukraine
|
Publication type: Journal Article
Publication date: 2011-01-17
scimago Q2
wos Q3
SJR: 0.493
CiteScore: 5.0
Impact factor: 2.5
ISSN: 11440546, 13699261
Materials Chemistry
General Chemistry
Catalysis
Abstract
It was shown by 1H NMR spectroscopy that symmetrical bis(crown)stilbenes (L) and small alkali and alkaline-earth metal cations form 1(L) ∶ 1(Mm+) and 1(L) ∶ 2(Mm+) complexes in MeCN solutions. In the case of large or hydrated metal cations such as Cs+, Rb+, K+, Ba2+, Sr2+, [Ca(H2O)x]2+ and stilbenes with a small crown-ether cavity as compared with the metal cation size, stable bis-sandwich complexes 2(L) ∶ 2(Mm+) can also be formed. A stable bis-pseudosandwich 2 ∶ 2 complex is also produced from bis(18-crown-6)stilbene with the propanediammonium ion. The effect of the crown-ether size and the cation size and nature on the route of stilbene phototransformation and product composition was elucidated. The bis-(pseudo)sandwich complexes undergo effective stereoselective [2+2] photocycloaddition giving mainly rctt isomers of new 1,2,3,4-tetracrown cyclobutanes. The structures of complexes of bis(crown)stilbenes and obtained cyclobutanes were confirmed by X-ray diffraction.
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GOST
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Fomina M. V. et al. Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition // New Journal of Chemistry. 2011. Vol. 35. No. 3. p. 724.
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Fomina M. V., Vedernikov A. I., Lobova N. A., Kuz'mina L. G., Basok S. S., Strelenko Y. A., Alfimov M. V., Howard J. A. Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition // New Journal of Chemistry. 2011. Vol. 35. No. 3. p. 724.
Cite this
RIS
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TY - JOUR
DO - 10.1039/c0nj00780c
UR - https://xlink.rsc.org/?DOI=c0nj00780c
TI - Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition
T2 - New Journal of Chemistry
AU - Fomina, Marina V.
AU - Vedernikov, Artem I.
AU - Lobova, Natalia A
AU - Kuz'mina, Lyudmila G.
AU - Basok, Stepan S.
AU - Strelenko, Yuri A.
AU - Alfimov, Michael V
AU - Howard, Judith A.
PY - 2011
DA - 2011/01/17
PB - Royal Society of Chemistry (RSC)
SP - 724
IS - 3
VL - 35
SN - 1144-0546
SN - 1369-9261
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2011_Fomina,
author = {Marina V. Fomina and Artem I. Vedernikov and Natalia A Lobova and Lyudmila G. Kuz'mina and Stepan S. Basok and Yuri A. Strelenko and Michael V Alfimov and Judith A. Howard},
title = {Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition},
journal = {New Journal of Chemistry},
year = {2011},
volume = {35},
publisher = {Royal Society of Chemistry (RSC)},
month = {jan},
url = {https://xlink.rsc.org/?DOI=c0nj00780c},
number = {3},
pages = {724},
doi = {10.1039/c0nj00780c}
}
Cite this
MLA
Copy
Fomina, Marina V., et al. “Controlled self-assembly of bis(crown)stilbenes into unusual bis-sandwich complexes: Structure and stereoselective [2+2] photocycloaddition.” New Journal of Chemistry, vol. 35, no. 3, Jan. 2011, p. 724. https://xlink.rsc.org/?DOI=c0nj00780c.
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