Related Experiment Video
Updated: Jun 1, 2026
14:18
A Strategy for Sensitive, Large Scale Quantitative Metabolomics
Published on: May 27, 2014
2-(4-Hy-droxy-phen-oxy)propanoic acid
Zhun Gu1, Hong-Sheng Jia, Wei Cheng
1Department of Biological and Chemical Engineering, Chien-shiung Institute of Technology, Taicang 215411, Suzhou, People's Republic of China.
Summary
This study details the crystal structure of a compound, C(9)H(10)O(4), revealing a carboxyl group
Area of Science:
- Organic Chemistry
- Crystallography
- Chemical Physics
Background:
- Understanding molecular interactions is crucial in chemical physics.
- Crystal structure analysis provides insights into intermolecular forces.
Purpose of the Study:
- To characterize the crystal structure of the compound C(9)H(10)O(4).
- To investigate the spatial arrangement of the carboxyl group relative to the benzene ring.
- To identify intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Geometric parameters, including dihedral angles, were analyzed.
- Hydrogen bonding networks were identified.
Main Results:
- The carboxyl group in C(9)H(10)O(4) is oriented at a dihedral angle of 84.6° with respect to the benzene ring.
- Molecules are linked through intermolecular O-H⋯O hydrogen bonds in the crystal structure.
- The crystal packing is dominated by these hydrogen bonding interactions.
Conclusions:
- The determined structure provides a detailed molecular description of C(9)H(10)O(4).
- The significant dihedral angle suggests restricted rotation around the bond connecting the carboxyl group and the benzene ring.
- The identified hydrogen bonding network dictates the solid-state architecture.
Related Concept Videos
03:02Organic Compounds
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
01:16IUPAC Nomenclature of Aldehydes
Aldehydes are named based on the systematic nomenclature rules set by the IUPAC. For acyclic aldehydes, the longest carbon chain containing the aldehydic (–CHO) group is considered the parent chain. The aldehyde is named by replacing the last letter “e” in the hydrocarbon name with “al”. For instance, a simple, seven-carbon-membered acyclic aldehyde is called heptanal, derived from heptane. The carbon chain is numbered starting from the aldehydic carbon, although the aldehydic carbon’s locant...
01:16Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides
Naming Acid Halides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
03:38Polyprotic Acids
Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one ionizable hydrogen atom in each molecule are called monoprotic acids. Their reactions with water are:
01:57Preparation of Diols and Pinacol Rearrangement
Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
01:01Acid Halides to Carboxylic Acids: Hydrolysis
Hydrolysis of acid halides is a nucleophilic acyl substitution reaction in which acid halides react with water to give carboxylic acids. The reaction occurs readily and does not require acid or a base catalyst.
As shown below, the mechanism involves a nucleophilic attack by water at the carbonyl carbon to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen π bond along with the departure of a halide ion. A final proton transfer step yields carboxylic acid...
As shown below, the mechanism involves a nucleophilic attack by water at the carbonyl carbon to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen π bond along with the departure of a halide ion. A final proton transfer step yields carboxylic acid...