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2,2'-(Piperazine-1,4-di-yl)diethanaminium dibenzoate

Ignacy Cukrowski1, Adedapo S Adeyinka, David C Liles

  • 1Department of Chemistry, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa.

Acta Crystallographica. Section E, Structure Reports Online
|August 21, 2012
PubMed

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The secondary and tertiary amines are derivatives of ammonia, where two and three of its hydrogens are replaced by alkyl groups, respectively. Secondary and tertiary amines can be symmetrical with identical alkyl groups attached to the nitrogen atom or unsymmetrical when more than one type of alkyl group is present. The standard nomenclature of secondary and tertiary amines is similar to the names given to the primary amines. They are generally named alkylamines. As depicted in Figure 1, for...
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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...