Related Experiment Video
Updated: May 17, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(4-Meth-oxy-phen-yl)(4-methyl-cyclo-hex-yl)methanone
1Graduate School, Tianjin Medical University, Tianjin 300070, People's Republic of China ; Tianjin Key Laboratory of Molecular Design & Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin 300193, People's Republic of China.
This study details the crystal structure of a C(15)H(20)O(2) compound, revealing two similar molecules in its asymmetric unit. These molecules form chains in the crystal through weak hydrogen bonding interactions.
Area of Science:
- Crystallography
- Organic Chemistry
- Solid-State Chemistry
Background:
- Understanding the solid-state structure of organic compounds is crucial for predicting their physical and chemical properties.
- The specific compound C(15)H(20)O(2) has not been previously characterized in detail regarding its crystalline form.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(15)H(20)O(2).
- To analyze the molecular geometry and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of bond lengths, bond angles, and intermolecular contacts was performed.
Main Results:
- The title compound, C(15)H(20)O(2), crystallizes with two independent molecules of similar geometry in the asymmetric unit.
- The cyclohexyl ring within each molecule adopts a chair conformation.
- Weak C-H⋯O interactions link translationally related molecules into chains along the a-axis.
Conclusions:
- The crystal packing of C(15)H(20)O(2) is governed by specific intermolecular interactions.
- The conformational preferences of the cyclohexyl ring influence the overall molecular arrangement in the solid state.
Related Concept Videos
Structure and Nomenclature of Ethers
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent groups, ethers can be classified into two...
Structure and Nomenclature of Epoxides
Mass Spectrometry: Cycloalkane Fragmentation
For example, cyclohexane molecular ions have a mass-to-charge ratio (m/z) of 84, which tends to produce a stronger signal than linear alkanes like hexane. This stability comes from...
Disubstituted Cyclohexanes: cis-trans Isomerism
In cyclohexane, the substituents can occupy different positions generating distinct isomers.
Acidity and Basicity of Alcohols and Phenols
Preparation of Epoxides
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...

![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)