Related Experiment Video
Updated: Jun 1, 2026

15:22
Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
Published on: April 3, 2014
4-Amino-2-phenoxy-pyrimidine.
Nasir Shah Bakhtiar1, Zanariah Abdullah, Seik Weng Ng
1Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Summary
This study details the crystal structure of a novel organic compound, C(10)H(9)N(3)O. Analysis reveals specific bond angles and intermolecular hydrogen bonding, forming crystal chains and a non-merohedral twin structure.
Area of Science:
- Crystallography
- Organic Chemistry
- Materials Science
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
- Crystal structure analysis provides fundamental insights into intermolecular forces and solid-state behavior.
Purpose of the Study:
- To elucidate the crystal structure of the organic compound C(10)H(9)N(3)O.
- To characterize the molecular geometry, including dihedral and bond angles.
- To identify and describe intermolecular interactions and crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of bond lengths, bond angles, and dihedral angles was performed.
- Identification of hydrogen bonding networks and twinning characteristics was conducted.
Main Results:
- The dihedral angle between organic rings linked to the ether oxygen is 76.8(1)°.
- The C-O-C bond angle is significantly widened to 119.07(15)°.
- Adjacent molecules form chains via N-H⋯N hydrogen bonds, and the crystal exhibits non-merohedral twinning (0.508:0.492 ratio).
Conclusions:
- The crystal structure of C(10)H(9)N(3)O has been determined, revealing specific geometric parameters.
- Intermolecular N-H⋯N hydrogen bonding dictates the formation of one-dimensional chains in the crystal lattice.
- The presence of non-merohedral twinning is a significant characteristic of this compound's solid state.
Related Concept Videos
Biosynthesis of Nucleic Acids
Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
Nomenclature of Aryl and Heterocyclic Amines
The simplest aromatic amine is phenylamine, which contains an –NH2 functionality directly attached to an aromatic ring. The name aniline is designated for this skeleton. As shown in Figure 1, the common names of the functionalized anilines involve prefixes ortho-, meta-, and para- to indicate the substitution position. Different functionalized aniline derivatives also have notable trivial names.
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para position.

