Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Konstantin A. Udachin"'
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 2, Pp o261-o262 (2012)
In the title compound, 2C12H10N4·C32H32O8, the calixarene adopts a rctt conformation with dihedral angles of 138.40 (1) and 9.10 (1)° between the opposite rings. The dihedral angles between the rings of the pyridine derivative are 8.80 (1) and 9.20
Externí odkaz:
https://doaj.org/article/d6c9da0b903849c9907827b8ed768bf7
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 10, Pp o2625-o2625 (2011)
The asymmetric unit of the title co-crystal, 2CH6N3+·C6Cl2O42−, contains one half of a chloranilate anion and one guanidinium cation, which are connected by strong N—H...O hydrogen bonds into a two-dimensional network.
Externí odkaz:
https://doaj.org/article/efedb6a64ea043f49c787824360d360d
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 9, Pp o2279-o2279 (2011)
The asymmetric unit of the title compound, 2CH6N3+·C8N2O42−, contains one half of a centrosymmetric 2,5-dicyano-3,6-dioxocyclohexa-1,4-diene-1,4-diolate (cyananilate) anion and one guanidinium cation, which are connected by N—H...O and N—H...N
Externí odkaz:
https://doaj.org/article/2f3392d0faf3447f91f84a61c497acd0
Publikováno v:
Faraday Discussions. 203:61-77
Clathrate hydrate phases of Cl2 and Br2 guest molecules have been known for about 200 years. The crystal structure of these phases was recently re-determined with high accuracy by single crystal X-ray diffraction. In these structures, the water oxyge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc524b4356fb00e27fce2fc5b4c5d599
https://doi.org/10.1039/c7fd00064b
https://doi.org/10.1039/c7fd00064b
Publikováno v:
Chemical Communications. 52:5621-5624
Methane trapped in the two distinct dodecahedral cages of the ionic clathrate hydrate of TBAB was studied by single crystal XRD and MD simulation. The relative CH₄ occupancies over the cage types were opposite to those of CO₂, which illustrates t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcf802a259785123848ca158d1e2183a
https://doi.org/10.1039/c6cc00264a
https://doi.org/10.1039/c6cc00264a
Autor:
Kyuchul Shin, Christopher I. Ratcliffe, Konstantin A. Udachin, Igor L. Moudrakovski, John A. Ripmeester
Publikováno v:
Canadian Journal of Chemistry. 93:850-857
Ionic hydrates are known to form numerous clathrate structures in which either the cations or anions sit in cages and the counterions are incorporated into the water framework. Due to the inclusion of the ionic species, such ionic clathrate hydrates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::687ae9c03844aca3c841b4ef3f766ff3
https://doi.org/10.1139/cjc-2014-0580
https://doi.org/10.1139/cjc-2014-0580
Autor:
Egon Rizzato, Michel Giorgi, Gary D. Enright, Valérie Monnier, Paul Tordo, Micael Hardy, Virginie Hornebecq, A. Stepanov, Gordon Chan, David Bardelang, Olivier Ouari, Md. Badruz Zaman, Konstantin A. Udachin
Publikováno v:
Crystal Growth & Design
Crystal Growth & Design, 2014, 14 (2), pp.467-476. ⟨10.1021/cg401097e⟩
Crystal Growth & Design, American Chemical Society, 2014, 14 (2), pp.467-476. ⟨10.1021/cg401097e⟩
Crystal Growth & Design, 2014, 14 (2), pp.467-476. ⟨10.1021/cg401097e⟩
Crystal Growth & Design, American Chemical Society, 2014, 14 (2), pp.467-476. ⟨10.1021/cg401097e⟩
International audience; The dinitroxide bis(TEMPO) bisketal (bTbk) was shown to crystallize into open frameworks whose structures were determined by single-crystal X-ray diffraction. We show that bTbk can be used as a supramolecular building block fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd0e118fc31d31ebb20bb63cb222b689
https://doi.org/10.1021/cg401097e
https://doi.org/10.1021/cg401097e
Autor:
Micael Hardy, Mehmet Menaf Ayhan, Olivier Ouari, Paul Tordo, David Bardelang, Roselyne Rosas, Hakim Karoui, Laurence Charles, Antal Rockenbauer, Konstantin A. Udachin
Publikováno v:
Journal of the American Chemical Society
Journal of the American Chemical Society, American Chemical Society, 2015, 137 (32), pp.10238-10245. ⟨10.1021/jacs.5b04553⟩
Journal of the American Chemical Society, 2015, 137 (32), pp.10238-10245. ⟨10.1021/jacs.5b04553⟩
Journal of the American Chemical Society, American Chemical Society, 2015, 137 (32), pp.10238-10245. ⟨10.1021/jacs.5b04553⟩
Journal of the American Chemical Society, 2015, 137 (32), pp.10238-10245. ⟨10.1021/jacs.5b04553⟩
We describe a photochemical method to introduce a single alcohol function directly on cucurbit[n]urils (n = 5, 6, 7, 8) with conversions of the order 95-100% using hydrogen peroxide and UV light. The reaction was easily scaled up to 1 g for CB[6] and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2ba5f1657acadf4214b7eb569cbfba0
https://nrc-publications.canada.ca/eng/view/object/?id=89a96c12-5ae7-4e68-a702-78205786d79f
https://nrc-publications.canada.ca/eng/view/object/?id=89a96c12-5ae7-4e68-a702-78205786d79f
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 22(22)
Water versus fluorine: Clathrate hydrates encaging hydrofluorocarbons as guests show both isotropic and anisotropic distributions within host water cages, depending on the number of fluorine atoms in the guest molecule; this is caused by changes in i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c7610b4bbaaa6f067d7d46954fb153
https://pubmed.ncbi.nlm.nih.gov/27105807
https://pubmed.ncbi.nlm.nih.gov/27105807
Publikováno v:
Proceedings of the National Academy of Sciences. 109:14785-14790
There is interest in the role of ammonia on Saturn’s moons Titan and Enceladus as the presence of water, methane, and ammonia under temperature and pressure conditions of the surface and interior make these moons rich environments for the study of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59a1205a31e0ce076d7bd04b06373a66
https://doi.org/10.1073/pnas.1205820109
https://doi.org/10.1073/pnas.1205820109