Zobrazeno 1 - 10
of 1 549
pro vyhledávání: '"A L, Spek"'
Autor:
Anthony L. Spek
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 1, Pp 1-11 (2020)
Authors of a paper that includes a new crystal-structure determination are expected to not only report the structural results of interest and their interpretation, but are also expected to archive in computer-readable CIF format the experimental data
Externí odkaz:
https://doaj.org/article/7be01bae525943108a1f8914e688d16b
Autor:
Anthony L. Spek
Publikováno v:
Comprehensive Inorganic Chemistry III ISBN: 9780128231531
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06282e3e3c49bc4a0918c489e491484e
https://doi.org/10.1016/b978-0-12-823144-9.00156-4
https://doi.org/10.1016/b978-0-12-823144-9.00156-4
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 9, Pp o2182-o2183 (2009)
The title compound, [–Si(C12H9)2OSi(CH3)2O–]2, was obtained unintentionally as the product of an attempted crystallization of caesium bis(biphenyl-2,2′-diyl)fluorosilicate from dimethylformamide. In the crystal, the molecule is located on an in
Externí odkaz:
https://doaj.org/article/75c771f7cddc455295ffdb7f0fe5c0ff
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 3, Pp o607-o607 (2008)
The chiral title compound, C7H12O2, a lactone derivative, features a seven-membered ring that adopts a chair conformation. The crystal structure is stabilized by weak C—H...O interactions occurring in the (100) plane. The absolute configuration was
Externí odkaz:
https://doaj.org/article/08b5c0f000aa482dba99b3626189d8bb
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 2, Pp o503-o503 (2008)
The title compound, C19H20N4O, crystallizes as twinned crystals containing two independent molecules which pack into a three-dimensional matrix via several C—H...N(cyano) interactions, with a C...N range of 3.324 (8)–3.568 (8) Å and C—H...N an
Externí odkaz:
https://doaj.org/article/5a59e45146a441fc9f1acf0dd85b6ef2
Autor:
Martin Lutz, Anthony L. Spek, Gerard van Koten, Erwin P. L. van der Geer, Robertus J. M. Klein Gebbink
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o195-o195 (2008)
In the title compound, C9H10N3S+·I−, the indole ring system and the thiouronium group are essentially perpendicular, with a dihedral angle of 89.87 (8)°. By intermolecular hydrogen bonding, a three-dimensional network is formed, which is addition
Externí odkaz:
https://doaj.org/article/bf8676ba4163483f863e94a5bac5cd7c
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o337-o337 (2008)
In the chiral title compound, C18H28O3, the two six-membered rings of the perhydronaphthalenone adopt a rigid chair–chair conformation and the five-membered dioxolanyl ring adopts an envelope conformation. The crystal structure is stabilized only b
Externí odkaz:
https://doaj.org/article/6841e1a611a84e108a2fadd69d19844e
Autor:
Martin Lutz, Anthony L. Spek, Gerard van Koten, Erwin P. L. van der Geer, Robertus J. M. Klein Gebbink
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o194-o194 (2008)
In the title compound, C9H10N3S+·NO3−, the indole ring system and the thiouronium group are nearly perpendicular, with a dihedral angle of 88.62 (6)°. Hydrogen bonding generates two-dimensional networks which are linked to each other via π stack
Externí odkaz:
https://doaj.org/article/07130d0c0271455f81d0cebaf6d6e3ca
Autor:
Bert Klein Gebbink, Niels J. M. Pijnenburg, Kimberley E. Mayland, Eder Tomás-Mendivil, Henk Kleijn, Gerard van Koten, Anthony L. Spek, Martin Lutz
Publikováno v:
Inorganica Chimica Acta. 409:163-173
The synthesis and characterization of monomeric and dendritic Grubbs II and Hoveyda-Grubbs II-based complexes are reported. These complexes were synthesized via a route based on the connection of monomeric or dendritic N-alkyl-N′-mesitylimidazol-2-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea3a80398443285e8c3d588c8e103a49
https://doi.org/10.1016/j.ica.2013.06.018
https://doi.org/10.1016/j.ica.2013.06.018
Autor:
Anthony L. Spek, Carmelo Giacovazzo, Christopher Glidewell, George Ferguson, Giovanni Luca Cascarano
Publikováno v:
Acta crystallographica. Section C, Crystal structure communications. 69 (2013): 774–777. doi:10.1107/S0108270113014601
info:cnr-pdr/source/autori:Cascarano G.L.; Ferguson G.; Giacovazzo C.; Glidewell C.; Spek A.L./titolo:Triphenylsilanol-4,4?-bipyridyl (4%2F1): The Z? = 4 polymorph revisited/doi:10.1107%2FS0108270113014601/rivista:Acta crystallographica. Section C, Crystal structure communications./anno:2013/pagina_da:774/pagina_a:777/intervallo_pagine:774–777/volume:69
info:cnr-pdr/source/autori:Cascarano G.L.; Ferguson G.; Giacovazzo C.; Glidewell C.; Spek A.L./titolo:Triphenylsilanol-4,4?-bipyridyl (4%2F1): The Z? = 4 polymorph revisited/doi:10.1107%2FS0108270113014601/rivista:Acta crystallographica. Section C, Crystal structure communications./anno:2013/pagina_da:774/pagina_a:777/intervallo_pagine:774–777/volume:69
A fully ordered structure is reported for the polymorph of triphenylsilanol–4,4′-bipyridyl (4/1), 4C18H16OSi·C10H8N2, havingZ′ = 4. The asymmetric unit contains four similar but distinct five-molecule aggregates, in which the central bipyridyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0aa51ac3857ac9e4db19731f7e8cb7b9
https://doi.org/10.1107/s0108270113014601
https://doi.org/10.1107/s0108270113014601