In the title molecule, C~17~H~10~F~5~N~5~O~2~, all bond lengths and angles show normal values. Weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions stabilize the crystal packing.
5,5-Dimethyl-2,2-bis(pentafluorophenyl)-4,4,6,6-tetrakis(trimethylsilyl)-1,3-dioxa-4,5,6-trisila-2-titanacyclohexane
✍ Scribed by Krempner, Clemens ;Weichert, Katja ;Reinke, Helmut
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 184 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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A view of (I) with the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.
In the title molecule, C 31 H 28 N 2 O 2 , the piperidinone ring adopts the usual twist-boat conformation. The aryl rings at positions 2 and 3 are axial and those at positions 5 and 6 are equatorial. In the crystal structure, there are no hydrogen bonds nor are there any significant Á Á Á stacking i
The title compound, C~26~H~23~F~2~NO~3~S, a polysubstituted piperidine enol, adopts a twisted half-chair conformation. The crystal structure is stabilized by N—H...F, C—H...O and weak C—H...π interactions. An intramolecular O—H...S interaction generates an __S__(5) graph-set motif.
The title compound, C 18 H 16 Cl 2 N 4 O, was prepared from isobutyric anhydride and 3,6-bis(4-chlorophenyl)-1,2dihydro-1,2,4,5-tetrazine. The central six-membered ring has a boat conformation.