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Chelate formation properties of some 2-acyl derivatives of 1,3-indandione

Dagmar Zacharová-Kalavská, I. Zelenský, and A. Perjéssy

Institut für analytische Chemie der Naturwissenschaftlichen Fakultät an der Komenský-Universität, Bratislava 1

 

Abstract:  The composition of the studied chelates of 2-acy] derivatives of indan-1,3-dione in water-ethanolic solution is as follows: [Fe(2-acylindan-1,3-dione)2 • 2H20]+, Ti(2-acylindan-1,3-dione)3 and U02(2-acylindan-l,3-dione)2. The influence of the substituent on the stability of chelates is quite opposite to its influence on the acidity of the ligand. 2-Benzoylindan-1,3-dione, as the most acidic from among the derivatives of indan-1,3-dione we studied, forms the least stable chelates. In the formation of all chelates we investigated, hydrogen of enol form of the pertinent 2-acyl derivative of indan-1,3-dione is substituted by central metal cation.

Full paper in Portable Document Format: 232a107.pdf (in German)

 

Chemical Papers 23 (2) 107–112 (1969)

Wednesday, October 21, 2020

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