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Related Concept Videos

Nitrosation of Enols01:19

Nitrosation of Enols

The nitrosation reaction is one of the methods of preparing 1,2-diketones. The enol tautomer of the starting ketone reacts with sodium nitrite in hydrochloric acid, generating the 1,2-diketone after hydrolysis.
Molecular Compounds: Formulas and Nomenclature03:10

Molecular Compounds: Formulas and Nomenclature

Molecular compounds or covalent compounds result when atoms share electrons to form covalent bonds. Since there is no electron transfer, molecular compounds do not contain ions; instead, they consist of discrete, neutral molecules.
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
2° Amines to N-Nitrosamines: Reaction with NaNO201:20

2° Amines to N-Nitrosamines: Reaction with NaNO2

Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
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.
Nitric Oxide Signaling Pathway01:28

Nitric Oxide Signaling Pathway

Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...

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Related Experiment Video

Updated: Jun 1, 2026

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress
11:00

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress

Published on: August 31, 2015

Methyl isonicotinate 1-oxide.

Hui Li1, Wen-Ni Zheng

  • 1College of Chemistry and Chemical, Engineering, Southeast University, Nanjing 210096, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|May 18, 2011
PubMed
Summary

This study details the crystal structure of a novel organic compound, C(7)H(7)NO(3). Its molecular structure features a near-planar arrangement between the benzene ring and methyl ester group, stabilized by hydrogen bonds.

Area of Science:

  • Crystallography
  • Organic Chemistry
  • Molecular Structure

Background:

  • Understanding molecular arrangements is crucial in organic chemistry.
  • Crystal structure analysis provides insights into intermolecular forces.

Purpose of the Study:

  • To elucidate the crystal structure of the compound C(7)H(7)NO(3).
  • To investigate the molecular conformation and intermolecular interactions.

Main Methods:

  • Single-crystal X-ray diffraction was employed.
  • Analysis of bond lengths, bond angles, and dihedral angles.

Main Results:

  • The benzene ring and methyl ester group exhibit near-planarity (dihedral angle of 3.09°).
  • Intermolecular C-H⋯O hydrogen bonds stabilize the crystal lattice.

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A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones
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A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones

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Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth
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Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth

Published on: January 7, 2022

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Last Updated: Jun 1, 2026

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress
11:00

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress

Published on: August 31, 2015

A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones
07:30

A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones

Published on: January 21, 2020

Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth
09:10

Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth

Published on: January 7, 2022

  • The crystal structure forms layers parallel to the (101) crystallographic plane.

    • Conclusions:

    • The compound C(7)H(7)NO(3) possesses a specific molecular conformation in the solid state.
    • Hydrogen bonding plays a key role in the crystal packing and stability.