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Related Concept Videos

Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

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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.
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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.
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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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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
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Synthesis and Characterization of Functionalized Metal-organic Frameworks
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Functional metal-organic liquids.

Nattapol Ma1,2, Soracha Kosasang3, Ellan K Berdichevsky4

  • 1International Center for Young Scientists (ICYS), National Institute for Materials Science 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan ma.nattapol@nims.go.jp.

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|May 24, 2024
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Summary
This summary is machine-generated.

Coordination polymers (CPs) and metal-organic frameworks (MOFs) can transition into liquid states, offering unique properties beyond their crystalline forms. This review explores these metal-organic liquids and their untapped potential.

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Area of Science:

  • Materials Science
  • Chemistry

Background:

  • Coordination polymers (CPs) and metal-organic frameworks (MOFs) traditionally studied as crystalline solids.
  • Emerging research reveals reversible crystal-to-liquid transitions in CPs and MOFs.
  • Liquid states of CPs and MOFs have been overlooked, yet are crucial for new functionalities.

Purpose of the Study:

  • To review current research on the liquid states of CPs and MOFs.
  • To discuss fundamental concepts for controlling these transitions.
  • To explore the unique features and applications of metal-organic liquids.

Main Methods:

  • Literature review of crystal-to-liquid transitions in CPs and MOFs.
  • Analysis of different transition types.
  • Extension of concepts to related metal-organic liquids.

Main Results:

  • CPs and MOFs exhibit diverse crystal-to-liquid transitions.
  • Liquid states possess unique properties not found in crystalline forms.
  • Potential applications in areas like ionic liquids and porous liquids.

Conclusions:

  • Understanding and controlling liquid states is key to unlocking new CP/MOF functionalities.
  • Metal-organic liquids represent a promising frontier in materials science.
  • Future research should focus on exploring and harnessing the properties of these liquids.