Related Experiment Video

Updated: Jul 11, 2026

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

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

Pyrrhotites: Stoichiometric Compounds with Composition Fen--1Sn (nge8)

N Morimoto, H Nakazawa, K Nishigucmi

    Science (New York, N.Y.)
    |May 22, 1970
    PubMed

    More Related Videos

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes10:51

    The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

    Published on: April 10, 2015

    Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics04:09

    Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

    Published on: August 30, 2024

    Related Concept Videos

    Ionic Compounds: Formulas and Nomenclature03:34

    Ionic Compounds: Formulas and Nomenclature

    An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
    Ionic Crystal Structures02:42

    Ionic Crystal Structures

    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...
    Five-Membered Heterocyclic Aromatic Compounds: Overview01:13

    Five-Membered Heterocyclic Aromatic Compounds: Overview

    Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom, respectively.
    Exceptions to the Octet Rule02:55

    Exceptions to the Octet Rule

    Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
    Coordination Compounds and Nomenclature02:54

    Coordination Compounds and Nomenclature

    In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
    Imperfections in Crystal Structure: Non-Stoichiometric Defects01:29

    Imperfections in Crystal Structure: Non-Stoichiometric Defects

    Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...