2 `-Deoxy-5-propynyluridine: a nucleoside with two conformations in the asymmetric unit
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Budow, Simone | |
dc.contributor.author | Eickmeier, Henning | |
dc.contributor.author | Reuter, Hans | |
dc.contributor.author | Seela, Frank | |
dc.date.accessioned | 2021-12-23T16:06:31Z | - |
dc.date.available | 2021-12-23T16:06:31Z | - |
dc.date.issued | 2009 | |
dc.identifier.issn | 01082701 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/7441 | - |
dc.description.abstract | The title compound, 1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-(prop-1-ynyl)pyrimidin-2,4(1 H,3H)-dione, C(12)H(14)N(2)O(5), shows two conformations in the crystalline state: conformer 1 adopts a C2'-endo (close to (2)E; S-type) sugar pucker and an anti nucleobase orientation [chi = -134.04 (19)degrees], while conformer 2 shows an S sugar pucker (twisted C2'-endo-C3'-exo), which is accompanied by a different anti base orientation [chi = -162.79 (17)degrees]. Both molecules show a sc (gauche, gauche) conformation at the exocyclic C4'-C5' bond and a coplanar orientation of the propynyl group with respect to the pyrimidine ring. The extended structure is a three-dimensional hydrogen- bond network involving intermolecular N-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds. Only O atoms function as H-atom acceptor sites. | |
dc.language.iso | en | |
dc.publisher | WILEY-BLACKWELL | |
dc.relation.ispartof | ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | |
dc.subject | Chemistry | |
dc.subject | Chemistry, Multidisciplinary | |
dc.subject | CRYSTAL | |
dc.subject | Crystallography | |
dc.subject | DNA | |
dc.subject | MOLECULAR-STRUCTURE | |
dc.subject | OLIGODEOXYNUCLEOTIDES | |
dc.subject | PYRIMIDINES | |
dc.subject | RNA | |
dc.subject | STABILITY | |
dc.title | 2 `-Deoxy-5-propynyluridine: a nucleoside with two conformations in the asymmetric unit | |
dc.type | journal article | |
dc.identifier.doi | 10.1107/S0108270109044850 | |
dc.identifier.isi | ISI:000272445600029 | |
dc.description.volume | 65 | |
dc.description.issue | 12 | |
dc.description.startpage | O645-O648 | |
dc.contributor.researcherid | H-9847-2014 | |
dc.publisher.place | COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA | |
dcterms.isPartOf.abbreviation | Acta Crystallogr. Sect. C-Cryst. Struct. Commun. | |
crisitem.author.dept | Institut für Chemie neuer Materialien | - |
crisitem.author.deptid | institute11 | - |
crisitem.author.parentorg | FB 05 - Biologie/Chemie | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | ReHa636 | - |
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geprüft am 17.05.2024