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Properties of Organometallic Compounds

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
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CFT focuses on...

Structural Isomerism

Structural 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.
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Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
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Related Experiment Video

Updated: Dec 15, 2025

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Stimuli-responsive structural changes in metal-organic frameworks.

Zhanning Liu¹, Lu Zhang¹, Daofeng Sun¹

¹School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China. znliu@upc.edu.cn dfsun@upc.edu.cn.

Chemical Communications (Cambridge, England)

|July 9, 2020

Summary

This summary is machine-generated.

Metal-organic frameworks (MOFs) show significant flexibility, responding dynamically to external stimuli. Understanding these structure changes is key to unlocking MOFs

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Area of Science:

Materials Science
Chemistry
Crystallography

Background:

Metal-organic frameworks (MOFs) are advanced porous materials with significant interest due to their unique properties and potential applications.
MOFs exhibit remarkable flexibility, leading to substantial responses to external stimuli, surpassing traditional materials.
The performance of MOFs is heavily influenced by applied stimuli, necessitating a deeper understanding of their behavior.

Purpose of the Study:

To provide a comprehensive summary of how MOFs' crystal structures evolve in response to various external stimuli.
To elucidate the critical relationship between MOF structure evolution and material properties under external influences.
To highlight the importance of understanding structure-property correlations for designing advanced MOF materials.

Main Methods:

Review and summarization of existing literature on MOF structural responses to external stimuli.
Analysis of crystal structure changes induced by guest molecule insertion.
Examination of structural transformations under varying temperature, pressure, electric fields, and light irradiation.

Main Results:

MOFs demonstrate diverse and significant structural transformations when subjected to external stimuli.
Guest insertion, temperature, pressure, electric fields, and light are identified as key factors driving MOF structural evolution.
The magnitude of MOF response to stimuli is considerably larger compared to conventional materials.

Conclusions:

A fundamental understanding of MOF structure evolution under stimuli is crucial for structure-property relationship elucidation.
The inherent flexibility of MOFs is central to their dynamic responses and potential applications.
This review consolidates knowledge on MOF structural dynamics, paving the way for tailored material design.