Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Precipitation of Ions03:11

Precipitation of Ions

25.4K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
25.4K
Solubility Equilibria03:07

Solubility Equilibria

44.6K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
44.6K
Solid–Solid Solutions01:24

Solid–Solid Solutions

131
The temperature-composition phase diagram of two solids, A and B, which are immiscible in the solid phase but form miscible liquids, shows that when the temperature is low, these two exist as separate, pure solids (A and B). As the temperature increases, they transition into a single-phase liquid solution where A and B coexist. Moving from point a1 to a2 in the phase diagram, the composition changes such that solid B begins to separate from the solution, enriching the remaining liquid with A.
131
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.9K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.9K
Formation of Complex Ions03:45

Formation of Complex Ions

18.8K
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...
18.8K
Recrystallization: Solid–Solution Equilibria01:10

Recrystallization: Solid–Solution Equilibria

4.1K
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
4.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Crystal structure and Hirshfeld surface analysis of ketorolac tromethamine.

Acta crystallographica. Section E, Crystallographic communications·2025
Same author

Polymorphic transition due to grinding: the case of 3-[1-(tert-butoxycarbonyl)azetidin-3-yl]-1,2-oxazole-4-carboxylic acid.

Acta crystallographica Section B, Structural science, crystal engineering and materials·2022
Same author

1-Allyl-4-hydroxy-2,2-dioxo-N-(4-methoxyphenyl)-1H-2λ<sup>6</sup>,1-benzothiazine-3-carboxamide: polymorphic transition due to grinding with the loss of the biological activity.

Acta crystallographica Section B, Structural science, crystal engineering and materials·2022
Same author

Structural features of the oxidonitridophosphates K<sub>3</sub> <i>M</i> <sup>III</sup>(PO<sub>3</sub>)<sub>3</sub>N (<i>M</i> <sup>III</sup> = Al, Ga).

Acta crystallographica. Section E, Crystallographic communications·2021
Same author

Mixed-metal phosphates K<sub>1.64</sub>Na<sub>0.36</sub>TiFe(PO<sub>4</sub>)<sub>3</sub> and K<sub>0.97</sub>Na<sub>1.03</sub>Ti<sub>1.26</sub>Fe<sub>0.74</sub>(PO<sub>4</sub>)<sub>3</sub> with a langbeinite framework.

Acta crystallographica. Section E, Crystallographic communications·2021
Same author

Usage of Quantum Chemical Methods to Understand the Formation of Concomitant Polymorphs of Acetyl 2-(<i>N</i>-(2-Fluorophenyl)imino)coumarin-3-carboxamide.

ACS omega·2021

Related Experiment Video

Updated: Apr 25, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.0K

The solid solution K3.84Ni0.78Fe3.19(PO4)5.

Nataliia Yu Strutynska1, Ivan V Ogorodnyk1, Oksana V Livitska1

  • 1Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska St, 01601 Kyiv, Ukraine.

Acta Crystallographica. Section E, Structure Reports Online
|August 28, 2014
PubMed
Summary

Researchers synthesized a novel potassium nickel iron orthophosphate compound. Its crystal structure features a 3D framework of trigonal bipyramids and isolated phosphate tetrahedra, with potassium ions in hexagonal channels.

More Related Videos

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

10.6K
Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

17.7K

Related Experiment Videos

Last Updated: Apr 25, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.0K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

10.6K
Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

17.7K

Area of Science:

  • Inorganic Chemistry
  • Solid-State Chemistry
  • Crystallography

Background:

  • Potassium-based phosphates are significant in materials science.
  • Mixed-metal orthophosphates offer tunable properties.
  • Understanding crystal structures is key to material functionality.

Purpose of the Study:

  • To synthesize and characterize a novel tetra-potassium tetra-[nickel(II)/iron(III)] penta-kis-(orthophosphate) compound.
  • To elucidate the crystal structure of K3.84Ni0.78Fe3.19(PO4)5.
  • To investigate the coordination environments of metal cations and potassium ions.

Main Methods:

  • Flux synthesis method for crystal growth.
  • Single-crystal X-ray diffraction for structural determination.
  • Analysis of crystallographic data to determine atomic positions and occupancies.

Main Results:

  • The compound K3.84Ni0.78Fe3.19(PO4)5 was successfully synthesized via flux.
  • The crystal structure is isotypic with K4MgFe3(PO4)5, featuring a 3D framework.
  • The framework consists of (Ni/Fe)O5 trigonal bipyramids and isolated PO4 tetrahedra, with K+ ions in hexagonal channels.

Conclusions:

  • The study successfully determined the crystal structure of a novel potassium nickel iron orthophosphate.
  • The mixed Fe:Ni occupancy in the trigonal bipyramids and the positions of potassium ions were precisely defined.
  • The findings contribute to the understanding of mixed-metal orthophosphate structures and their potential applications.