The structure of the ®rst oligo 1,1-cyclopropane, C 24 H 24 , is reported. All the three-membered rings are gauche with respect to each other. The molecules are connected by a network of CÐHÁ Á ÁC interactions.
(−)-cis-1-Acetyl-3-ethynyl-2,2-dimethylcyclobutane
✍ Scribed by Malak, Muhammad H. ;Lalancette, Roger A. ;Thompson, Hugh W.
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 152 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C~10~H~14~O, adopts a conformation typical of cis-1,3-disubstituted cyclobutanes, with the ring flexed out of planarity so that the substituents are maximally separated. The two intermolecular C—H...O=C close contacts found include one involving the acetylenic H atom.
📜 SIMILAR VOLUMES
The title compound, C 21 H 27 NO, crystallizes with two rather similar molecules in the asymmetric unit. Its molecular conformation is stabilized by an intramolecular O-HÁ Á ÁN hydrogen bond.
The title compound, C~34~H~32~N~4~O~2~, undergoes a reversible [2+2] photoreaction with 1-(2-benzoxazol-2-yl)-2-bis[4-(dimethylamino)phenyl]ethane (NBE). Through intermolecular head-to-tail [2+2] photocycloaddition of NBE, the title compound displays a centrosymmetric molecular structure in the crys
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.062 wR factor = 0.176 Data-to-parameter ratio = 12.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.