Pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione ethylene acetal
✍ Scribed by Kruger, Hendrik G. ;Rademeyer, Melanie ;Ramdhani, Reshika
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 217 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title molecule, C 13 H 14 O 3 , is a chiral molecule which exhibits C-C single-bond lengths that deviate from the expected value. Both enantiomers are present in the crystal structure.
📜 SIMILAR VOLUMES
the independent rings which comprise the compound. I.r. and Raman spectra were recorded, and a vibrational analysis was performed on the spectral quantities. The standard thermodynamic properties in the ideal-gas state were calculated in the temperature range 100 K to 1000 K. The calculated standard
Reaction of Pentaeyclo[5.4.0.02,6.03'10.05'9] undecmle-8,l l-dione (l) with ethanedithiol, when performed in the presence of a Lewis acid catalyst (F3B-OEt2), afforded the corresponding mono(ethylene dithioacetal), 2, along with 7,8-[(thicethano)thio]pentacyclo[6.3.0.02,6.03, lO.05,9]undecan-l 1-on
Photoelectron spectra of six 8,11-disubstituted pentacycloundecanes (1, 3 -7) are reported; the results suggest that the through-space interaction betweeen unsaturation centers in 1 and 3 dominates over the through-bond interaction mechanism.
The title molecule, C 15 H 20 O 3 , exhibits C-C bond lengths that deviate from normal values. A number of long and short C-C bonds are observed. Neighbouring molecules interact via strong O-HÁ Á ÁO hydrogen bonds, forming two-dimensional hydrogen-bonded sheets.