6-[(2E)-3,7-Dimethylocta-2,6-dien-1-yl]-5,7-dihydroxy-8-(2-methylbutanoyl) -4-phenyl-2H-chromen-2-one-6-[(2E)-3,7-dimethylocta-2,6-dien-1-yl]-5, 7-dihydroxy-8-(3-methylbutano-l)-4-phenyl-2H-chromen-2-one (1/1) from Mesua elegans
The title co-crystal, C 30H 34O 5· C 30H 34O 5, comprises a 1:1 mixture of two mostly superimposed mol-ecules with the same chemical formula that differ in the nature of the substituent (2-methyl-butanoyl or 3-methyl-butano-yl) bound at the exocyclic ketone. The lactone ring is close to planar (r.m....
| الحاوية / القاعدة: | Acta Crystallographica Section E: Structure Reports Online |
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| المؤلف الرئيسي: | |
| التنسيق: | مقال |
| اللغة: | English |
| منشور في: |
2012
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| الوصول للمادة أونلاين: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860302949&doi=10.1107%2fS1600536812008628&partnerID=40&md5=f2e53d5647217e988645357c2074ac11 |
| الملخص: | The title co-crystal, C 30H 34O 5· C 30H 34O 5, comprises a 1:1 mixture of two mostly superimposed mol-ecules with the same chemical formula that differ in the nature of the substituent (2-methyl-butanoyl or 3-methyl-butano-yl) bound at the exocyclic ketone. The lactone ring is close to planar (r.m.s. deviation = 0.058 Å) and the phenyl ring is twisted out of this plane [dihedral angle = 60.08 (9)°]. The geranyl substituent is almost normal to benzene ring to which it is connected [C-C-C ar-C ar (ar = aromatic) torsion angle =-87.8 (2)°]. Intra-molecular O-H⋯O and O-H⋯π inter-actions are formed. In the crystal, supra-molecular chains are formed along the a axis owing to C-H⋯O contacts, with the lactone carbonyl atom accepting two such bonds. |
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| تدمد: | 16005368 |
| DOI: | 10.1107/S1600536812008628 |