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Related Concept Videos

Formation of Complex Ions03:45

Formation 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...
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Precipitation of Ions

Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Precipitation Titration Curve: Analysis01:21

Precipitation Titration Curve: Analysis

The precipitation titration curve demonstrates the change in concentration of one reactant with the volume of titrant added. During the titration of chloride ions with silver nitrate, the precipitation titration curve is divided into three regions: before, at, and after the equivalence point. Before the equivalence point, low redissolution of the sparingly soluble silver chloride precipitate gives a low silver ion concentration. However, in the second region, representing the equivalence point,...
Colloidal precipitates01:09

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
EDTA: Auxiliary Complexing Reagents01:26

EDTA: Auxiliary Complexing Reagents

EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...

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Preparation of Contiguous Bisaziridines for Regioselective Ring-Opening Reactions
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Published on: July 28, 2022

Trisilver(I) citrate.

Andreas Fischer1

  • 1Inorganic Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), 100 44 Stockholm, Sweden.

Acta Crystallographica. Section E, Structure Reports Online
|April 28, 2011
PubMed
Summary
This summary is machine-generated.

Trisilver(I) citrate was synthesized from sodium citrate and silver nitrate. This study details its crystal structure, revealing a 3D network formed by citrate groups and silver ions with irregular coordination polyhedra.

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Area of Science:

  • Inorganic Chemistry
  • Crystal Engineering
  • Coordination Chemistry

Background:

  • Silver compounds exhibit diverse applications in catalysis and medicine.
  • Citrate ligands are versatile in coordination chemistry, forming various metal complexes.
  • Understanding the structural properties of metal-citrate complexes is crucial for developing new materials.

Purpose of the Study:

  • To synthesize and characterize trisilver(I) citrate.
  • To elucidate the crystal structure and bonding of trisilver(I) citrate.
  • To investigate the coordination environment of silver ions within the citrate framework.

Main Methods:

  • Evaporation of a saturated aqueous solution of raw material.
  • Single-crystal X-ray diffraction analysis.
  • Spectroscopic characterization (implied).

Main Results:

  • Trisilver(I) citrate, 3Ag(+)·C(6)H(5)O(7) (3-), was successfully synthesized.
  • The crystal structure revealed one formula unit in the asymmetric unit.
  • An intra-molecular O-H⋯O hydrogen bond was observed.
  • A three-dimensional network structure was formed by citrate groups linked via Ag(+) ions.
  • Irregular [AgO(4)] polyhedra characterized the silver coordination environment.

Conclusions:

  • The synthesis yielded trisilver(I) citrate with a defined stoichiometry.
  • The crystal structure provides insights into the coordination behavior of silver(I) with citrate.
  • The 3D network structure suggests potential for applications in materials science or coordination polymers.