Related Experiment Video
Updated: Apr 24, 2026
11:15
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
Published on: July 23, 2016
9.5K
A one-dimensional coordination polymer with a capped [Cu4O4] cubane core assembled from 2-(hydroxymethyl)pyridine
Hong Mei Lv1, Su Na Wang1, Da Cheng Li1
1Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China.
Acta Crystallographica. Section C, Structural Chemistry
|September 5, 2014
Summary
A novel one-dimensional coordination polymer featuring a tetracpper(II) cubane core bridged by di-μ2-diacetamidato ligands was synthesized. This study explores the magnetic properties of this unique copper coordination polymer.
Area of Science:
- Coordination chemistry
- Materials science
- Inorganic chemistry
Background:
- Coordination polymers offer tunable structures and properties.
- Copper complexes exhibit diverse magnetic behaviors.
- Bridging ligands are crucial for constructing extended networks.
Purpose of the Study:
- To synthesize and characterize a novel one-dimensional coordination polymer of copper(II).
- To investigate the structural features, specifically the formation of a tetracpper(II) cubane core.
- To study the magnetic properties of the resulting coordination polymer.
Main Methods:
- Direct reaction of 2-(hydroxymethyl)pyridine with copper(II) acetate hydrate.
- Crystallization from a methanol-acetonitrile mixture.
- X-ray crystallography and magnetic susceptibility measurements.
Main Results:
- Successful synthesis of the one-dimensional coordination polymer catena-poly[[[di-μ2-acetato-tetrakis[μ3-(pyridin-2-yl)methanolato]tetracopper(II)]-di-μ2-diacetamidato] acetonitrile monosolvate].
- Formation of a capped [Cu4O4] cubane core where four Cu centers are bridged by oxygen atoms from pyridylmethanolate and acetate ligands.
- Chaining of cubane cores via bridging [N(CN)2](-) anions, confirmed by structural analysis.
- Preliminary study of the magnetic properties of the copper coordination polymer.
Conclusions:
- A novel tetracpper(II) coordination polymer with a unique cubane core and one-dimensional chain structure has been synthesized.
- The bridging ligands play a critical role in forming the extended network and the cubane core.
- Further investigation into the magnetic properties is warranted to understand the magnetic interactions within the chains.
Keywords:
2-hydroxymethylpyridineHeisenberg–Dirac–van Vleck (HDVV) Hamiltoniancopper(II) cubanecrystal engineeringcrystal structuremagnetic propertiesone-dimensional coordination polymerMore Related Videos
09:35Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
9.7K
09:22Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
7.2K
Related Concept Videos
02:57Coordination Number and Geometry
15.5K
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.
15.5K
02:42Valence Bond Theory
8.8K
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...
8.8K
01:18Aromatic Hydrocarbon Cations: Structural Overview
3.4K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
Removing one hydrogen from the intervening CH2 group...
3.4K
02:54Coordination Compounds and Nomenclature
21.0K
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...
21.0K
02:51Metal-Ligand Bonds
19.2K
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...
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...
19.2K
02:34Structural Isomerism
16.8K
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.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
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.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...
16.8K