Related Experiment Video
Updated: Jun 5, 2026
11:51
Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
catena-Poly[[trimethyl-tin(IV)]-μ-quinaldato]
Hongyun Wang1, Handong Yin, Daqi Wang
1College of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China.
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
This study reveals a novel one-dimensional chain structure for the tin compound [Sn(CH3)3(C10H6NO2)]n. The tin(IV) ions exhibit distorted trigonal-bipyramidal coordination, influencing the material
Area of Science:
- Organometallic Chemistry
- Coordination Chemistry
- Crystallography
Background:
- Organotin compounds are versatile materials with diverse applications.
- Understanding the structural properties of organotin complexes is crucial for designing new materials.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, [Sn(CH3)3(C10H6NO2)]n.
- To investigate the coordination environment of tin(IV) ions in this extended structure.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the molecular and crystal structure.
- The coordination geometry around the tin(IV) centers was analyzed.
Main Results:
- The title compound forms an extended one-dimensional chain structure.
- Two independent tin(IV) ions were identified, each in a distorted trigonal-bipyramidal coordination.
- Oxygen atoms occupy the axial sites, and a crystallographic twofold axis relates the tin(IV) ion to an equatorial carbon atom.
Conclusions:
- The structural characterization provides fundamental insights into the coordination behavior of tin(IV) in extended solid-state structures.
- The observed one-dimensional chain motif highlights potential for developing novel organotin-based materials.
Related Concept Videos
00:43Complexometric Titration: Ligands
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...
01:10Radical Chain-Growth Polymerization: Overview
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
01:22EDTA: Chemistry and Properties
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...
02:51Metal-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...
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...
01:19Complexation Equilibria: The Chelate Effect
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
01:20Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...