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Related Concept Videos

Coordination Number and Geometry02:57

Coordination Number and Geometry

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
Metal-Ligand Bonds02:51

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...
Properties of Organometallic Compounds01:23

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.
Valence Bond Theory02:42

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Metallic Solids02:37

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.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

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Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
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Amino substituted Cu3(btc)2: a new metal-organic framework with a versatile functionality.

Katharina Peikert1, Frank Hoffmann, Michael Fröba

  • 1Department of Chemistry, Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany.

Chemical Communications (Cambridge, England)
|October 16, 2012
PubMed
Summary

Researchers synthesized a novel amino-substituted tricarboxylate linker and a metal-organic framework (MOF), Cu(3)(NH(2)btc)(2). This new MOF exhibits excellent adsorption capabilities and is amenable to postsynthetic modification for creating amide-functionalized materials.

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Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

Area of Science:

  • Materials Science
  • Inorganic Chemistry
  • Nanotechnology

Background:

  • Metal-organic frameworks (MOFs) are crystalline porous materials with diverse applications.
  • Developing novel MOFs with tailored properties is crucial for advancing materials science.
  • Functionalization of MOFs allows for fine-tuning their characteristics for specific uses.

Purpose of the Study:

  • To synthesize a new amino-substituted tricarboxylate linker.
  • To construct and characterize a novel metal-organic framework, Cu(3)(NH(2)btc)(2).
  • To evaluate the adsorption properties and postsynthetic modification potential of the new MOF.

Main Methods:

  • Chemical synthesis of a novel amino-substituted tricarboxylate linker.
  • Crystallization and characterization of the Cu(3)(NH(2)btc)(2) metal-organic framework.
  • Adsorption studies to assess material properties.
  • Postsynthetic modification reactions to introduce amide functionality.

Main Results:

  • Successful synthesis of a new amino-substituted tricarboxylate linker.
  • Formation of the novel metal-organic framework Cu(3)(NH(2)btc)(2).
  • The synthesized MOF demonstrated significant adsorption properties.
  • The framework proved suitable for postsynthetic modification into an amide-functionalized material.

Conclusions:

  • A new amino-substituted tricarboxylate linker and its corresponding MOF, Cu(3)(NH(2)btc)(2), have been successfully synthesized.
  • The novel MOF exhibits promising adsorption capabilities.
  • The material is amenable to postsynthetic modification, opening avenues for creating functionalized frameworks.