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Related Concept Videos

Metal-Ligand Bonds02:51

Metal-Ligand Bonds

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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.
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...
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Coordination Compounds and Nomenclature02:54

Coordination Compounds and Nomenclature

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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...
21.9K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

3.4K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.4K
Coordination Number and Geometry02:57

Coordination Number and Geometry

16.3K
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.
16.3K
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

1.0K
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
1.0K
EDTA: Chemistry and Properties01:22

EDTA: Chemistry and Properties

2.1K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
2.1K

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Zinc(II) Carboxylate Coordination Polymers with Versatile Applications.

Gina Vasile Scaeteanu1, Catalin Maxim2, Mihaela Badea2

  • 1Department of Soil Sciences, University of Agronomical Sciences and Veterinary Medicine, 59 Mărăști Str., 011464 Bucharest, Romania.

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|February 11, 2023
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Summary

Zinc(II) carboxylate-based coordination polymers (Zn-CBCPs) show versatile applications, including sensing, catalysis, and biomedical treatments. Their tunable luminescence and porous structures enable pollutant detection, wastewater treatment, and drug delivery.

Keywords:
carboxylatecoordination polymerluminescencesensorstoragezinc

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Area of Science:

  • Materials Science
  • Chemistry
  • Nanotechnology

Background:

  • Coordination polymers (CPs) are crystalline materials constructed from metal ions and organic ligands.
  • Zinc(II) carboxylate-based coordination polymers (Zn-CBCPs) are a class of CPs with diverse structures and properties.
  • Zn-CBCPs have emerged as promising materials for various advanced applications.

Purpose of the Study:

  • To review the diverse applications of Zn-CBCPs.
  • To highlight the structure-property relationships governing their functionalities.
  • To explore their potential in sensing, catalysis, and biomedical fields.

Main Methods:

  • Literature review of recent studies on Zn-CBCPs.
  • Analysis of the role of organic luminophores and ligand design in modulating properties.
  • Investigation of Zn(II) Lewis acidity and porous network formation.

Main Results:

  • Zn-CBCPs exhibit tunable luminescence for sensing inorganic and organic pollutants.
  • Their photocatalytic activity aids in dye elimination from wastewater.
  • Zn-CBCPs show potential for inhibiting pathogenic microorganisms and tumors.
  • Porous structures facilitate gas/liquid storage and drug delivery.

Conclusions:

  • Zn-CBCPs are multifunctional materials with significant potential in environmental remediation, catalysis, and medicine.
  • Tailoring ligand design and network architecture is key to optimizing their performance.
  • Further research can unlock novel applications for these versatile materials.