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Related Concept Videos

Structure and Nomenclature of Ethers02:28

Structure and Nomenclature of Ethers

Structure and Bonding
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...
IUPAC Nomenclature of Ketones01:09

IUPAC Nomenclature of Ketones

Like aldehydes, ketones are named using IUPAC rules; in this case, by replacing “e” in the name of the longest hydrocarbon chain with “one.” In acyclic ketones, the ketonic carbon is given the lowest locant value. For instance, as shown below, a simple five-carbon ketone is named pentan-2-one, instead of pentan-4-one. IUPAC rules also allow the placing of the locant value before the parent name to give an alternate name, 2-pentanone.
Nomenclature of Alkynes02:39

Nomenclature of Alkynes

Alkynes are unsaturated hydrocarbons characterized by the presence of carbon-carbon triple bonds and have a general formula CnH2n-2. The nomenclature of alkynes follows a set of rules similar to alkanes and alkenes; however, alkynes bear the suffix "-yne" instead of "-ane" or "-ene." There are two approaches to naming alkynes:
Structure and Nomenclature of Alcohols and Phenols02:23

Structure and Nomenclature of Alcohols and Phenols

Overview
Alcohols are one of the most important functional groups in organic chemistry. The name of alcohol comes from the hydrocarbon from which it is derived. Alcohols are organic molecules containing the functional hydroxyl or –OH group directly bonded to carbon. Phenols have an OH group directly attached to a benzene ring. While alcohols are colorless, phenol is a white crystalline compound with a characteristic "hospital smell" odor.
As with other organic compounds, alcohols and phenols...
Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles01:11

Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles

Naming Amides
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
Structure and Nomenclature of Epoxides02:38

Structure and Nomenclature of Epoxides

Cyclic ethers are heterocyclic compounds with an oxygen atom in the ring along with carbon atoms. They are named depending on the number of carbon atoms present in their ring system. Cyclic ethers with a three-membered ring system are called “oxirane”, four-membered ring systems as “oxetane”, five-membered ring systems as “oxolane”, and six-membered ring systems as “oxane”. The cyclic structure of these rings imposes angle strain, and this strain is more in the ring having a smaller number of...

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Updated: Jun 1, 2026

Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile
06:52

Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile

Published on: October 30, 2018

1-(4-Methyl-1-naphth-yl)ethanone.

Yong-Hong Hu1, Xiao-Lei Zhao, Wen-Ge Yang

  • 1College of Life Science and Pharmaceutical Engineering, Nanjing University of Technolgy, Xinmofan Road No. 5 Nanjing, Nanjing 210009, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|May 18, 2011
PubMed
Summary
This summary is machine-generated.

The crystal structure of C(13)H(12)O reveals a molecule with two aromatic rings angled at 2.90 degrees. An intramolecular hydrogen bond forms a non-planar ring, and intermolecular bonds link molecules in the crystal lattice.

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A Two-Step Protocol for Umpolung Functionalization of Ketones Via Enolonium Species
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A Two-Step Protocol for Umpolung Functionalization of Ketones Via Enolonium Species

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Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile
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Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
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Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate

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Area of Science:

  • Crystallography
  • Organic Chemistry
  • Molecular Structure

Background:

  • Understanding molecular conformation and intermolecular interactions is crucial in solid-state chemistry.
  • Aromatic compounds exhibit diverse packing arrangements influenced by subtle electronic and steric factors.

Purpose of the Study:

  • To elucidate the detailed molecular and crystal structure of the title compound, C(13)H(12)O.
  • To investigate the role of intramolecular and intermolecular hydrogen bonding in dictating the compound's solid-state architecture.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
  • Analysis of bond lengths, bond angles, and dihedral angles provided insights into molecular geometry.
  • Hydrogen bond analysis identified and characterized intra- and intermolecular interactions.

Main Results:

  • The title compound, C(13)H(12)O, exhibits a dihedral angle of 2.90(3)° between its two aromatic rings.
  • A significant intramolecular C-H⋯O hydrogen bond was observed, leading to a six-membered ring with an envelope conformation.
  • Intermolecular C-H⋯O hydrogen bonds were identified, mediating the assembly of molecules within the crystal structure.

Conclusions:

  • The study provides a precise structural characterization of C(13)H(12)O.
  • Intramolecular hydrogen bonding plays a key role in defining the molecule's conformation.
  • Intermolecular interactions dictate the packing arrangement and stability of the crystal lattice.