Related Experiment Video
Updated: Jun 1, 2026
06:40
Synthesis of a Water-soluble Metal–Organic Complex Array
Published on: October 8, 2016
Aqua-bis[N'-(2-hydroxy-benzyl-idene)isonicotinohydrazide-κN]silver(I) nitrate
Summary
This study details the crystal structure of a silver(I) compound featuring N
Area of Science:
- Coordination Chemistry
- Crystallography
- Materials Science
Background:
- Silver(I) compounds exhibit diverse coordination geometries.
- Hydrazone ligands offer versatile coordination modes.
- Understanding metal-ligand interactions is crucial for materials design.
Purpose of the Study:
- To synthesize and characterize a novel silver(I) complex.
- To elucidate the coordination environment and crystal structure of the silver(I) compound.
- To investigate the role of hydrogen bonding in crystal stabilization.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Synthesis of the silver(I) complex using N'-(2-hydroxy-benzylidene)isonicotinohydrazide.
- Characterization of intermolecular interactions within the crystal lattice.
Main Results:
- The silver(I) ion adopts a T-shaped coordination geometry.
- Two N atoms from pyridine rings of the ligands and one water O atom coordinate to silver(I).
- Extensive hydrogen bonding (O-H⋯O, O-H⋯N, N-H⋯O) stabilizes the crystal structure.
Conclusions:
- The synthesized compound displays unique coordination behavior with silver(I).
- Hydrogen bonding plays a critical role in the supramolecular assembly and stability of the crystal.
- The findings contribute to the understanding of silver(I) coordination chemistry and crystal engineering.
Related Concept Videos
01:19Diazonium Group Substitution: –OH and –H
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
03:03Chemical Reactions in Aqueous Solutions
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
01:261° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
01:371° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
03:45Formation of Complex Ions
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
02:34Structural 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...
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...