1990
DOI: 10.1107/s0108270189007894
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Structures de l'ebselen (phényl-2 2H-benzisosélénazole-1,2 one-3) (I) et de l'acétonylséléno-2 benzanilide (II)

Abstract: Abstract. (I) C13H9NOSe, Mr=274"18, orthorhombic, Pbca, a = 11-689 (6), b = 13.042

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Cited by 24 publications
(17 citation statements)
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“…The angles at the Se atoms, 98.6(3) ° [99.3 (2)°], are in agreement with reported values for comparable compounds (with a methylene group and an aromatic ring attached to the Se atom) ranging from 100.5 (3) to 101.6(2) ° (Brussani, Ley, Wright & Williams, 1986;Dupont, Dideberg & Jacquemin, 1990;Iwaoka & Tomoda, 1994) (Brussani et al, 1986;Dupont et al, 1990;Iwaoka & Tomoda, 1994).…”
Section: (I)supporting
confidence: 78%
“…The angles at the Se atoms, 98.6(3) ° [99.3 (2)°], are in agreement with reported values for comparable compounds (with a methylene group and an aromatic ring attached to the Se atom) ranging from 100.5 (3) to 101.6(2) ° (Brussani, Ley, Wright & Williams, 1986;Dupont, Dideberg & Jacquemin, 1990;Iwaoka & Tomoda, 1994) (Brussani et al, 1986;Dupont et al, 1990;Iwaoka & Tomoda, 1994).…”
Section: (I)supporting
confidence: 78%
“…The origin of polymorphic modification20 is ascribed to the different reorganization of supramolecular assembly under kinetic conditions and hence the phenomenon provides information on the possible variation in supramolecular synthons and their hierarchical preferences during the process of crystallization 19b. Interestingly, ebselen, when crystallized from different solvents, produces two different polymorphs, polymorph 1 a 21 and 1 b (a novel polymorph having striking structural similarities with 1 a ). Similarly, for compound 2 , three different polymorphs 2 a , 2 b , and 2 c were obtained by varying the polarity of solvent of crystallization (Supporting Information).…”
Section: Resultsmentioning
confidence: 99%
“…Viele ChB‐Donormotive entstehen aus dem Einsatz eines heterozyklischen Systems, das die ausreichende Polarisation eines eingebundenen Chalkogenatoms bewirkt . Eines der bekanntesten Beispiele für solch ein Molekül ist sicherlich Ebselen ( 1 ; Abbildung ) . In dessen Molekülstruktur im Kristall können kurze intermolekulare Se‐O‐Kontakte (2.522 und 2.533 Å für die verschiedenen Polymorphe) beobachtet werden, die für seine biologische Aktivität notwendig sein könnten …”
Section: Chalkogenbrücken In Festkörperstrukturenunclassified
“… Molekülstruktur von Ebselen ( 1 ) im Kristall, welche die kurze intermolekulare Chalkogenbrücke betont …”
Section: Chalkogenbrücken In Festkörperstrukturenunclassified