Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol

Manganese is an abundant element that plays critical roles and is at the reaction center of several enzymes. In order to promote an understanding of the behavior of manganese(II) ion with several aliphatic ligands, in this work, the stability and spectral behavior of the complexes with manganese(II)...

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Main Authors: José J. N. Segoviano-Garfias, Gabriela A. Zanor, Fidel Ávila-Ramos
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Molbank
Subjects:
Online Access:https://www.mdpi.com/1422-8599/2022/2/M1367
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author José J. N. Segoviano-Garfias
Gabriela A. Zanor
Fidel Ávila-Ramos
author_facet José J. N. Segoviano-Garfias
Gabriela A. Zanor
Fidel Ávila-Ramos
author_sort José J. N. Segoviano-Garfias
collection DOAJ
description Manganese is an abundant element that plays critical roles and is at the reaction center of several enzymes. In order to promote an understanding of the behavior of manganese(II) ion with several aliphatic ligands, in this work, the stability and spectral behavior of the complexes with manganese(II) and ethylenediamine, 1,3-propanediamine or 1,4-butanediamine were explored. A spectrophotometric study of its speciation in methanol was performed at 293 K. The formation constants obtained for these systems were: manganese(II)-ethylenediamine log β<sub>110</sub> = 3.98 and log β<sub>120</sub> = 7.51; for the manganese(II)-1,3-propanediamine log β<sub>110</sub> = 5.08 and log β<sub>120</sub> = 8.66; and for manganese(II)-1,4-butanediamine log β<sub>110</sub> = 4.36 and log β<sub>120</sub> = 8.46. These results were obtained by fitting the experimental spectrophotometric data using the HypSpec software. The complexes reported in this study show a spectral pattern that could be related to a chelate effect in which the molar absorbance is not directly related to the increase in the carbon chain of the ligands.
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spelling doaj.art-02716e61fdc14444894aae9fe827bf652023-11-23T18:08:20ZengMDPI AGMolbank1422-85992022-05-0120222M136710.3390/M1367Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in MethanolJosé J. N. Segoviano-Garfias0Gabriela A. Zanor1Fidel Ávila-Ramos2División de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Campus Irapuato-Salamanca, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, MexicoDivisión de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Campus Irapuato-Salamanca, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, MexicoDivisión de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Campus Irapuato-Salamanca, Ex Hacienda El Copal, Carretera Irapuato-Silao Km. 9, Irapuato 36500, MexicoManganese is an abundant element that plays critical roles and is at the reaction center of several enzymes. In order to promote an understanding of the behavior of manganese(II) ion with several aliphatic ligands, in this work, the stability and spectral behavior of the complexes with manganese(II) and ethylenediamine, 1,3-propanediamine or 1,4-butanediamine were explored. A spectrophotometric study of its speciation in methanol was performed at 293 K. The formation constants obtained for these systems were: manganese(II)-ethylenediamine log β<sub>110</sub> = 3.98 and log β<sub>120</sub> = 7.51; for the manganese(II)-1,3-propanediamine log β<sub>110</sub> = 5.08 and log β<sub>120</sub> = 8.66; and for manganese(II)-1,4-butanediamine log β<sub>110</sub> = 4.36 and log β<sub>120</sub> = 8.46. These results were obtained by fitting the experimental spectrophotometric data using the HypSpec software. The complexes reported in this study show a spectral pattern that could be related to a chelate effect in which the molar absorbance is not directly related to the increase in the carbon chain of the ligands.https://www.mdpi.com/1422-8599/2022/2/M1367manganese(II) complexesequilibriaformation constants
spellingShingle José J. N. Segoviano-Garfias
Gabriela A. Zanor
Fidel Ávila-Ramos
Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
Molbank
manganese(II) complexes
equilibria
formation constants
title Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
title_full Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
title_fullStr Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
title_full_unstemmed Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
title_short Solution Equilibria Formation of Manganese(II) Complexes with Ethylenediamine, 1,3-Propanediamine and 1,4-ButanediaMine in Methanol
title_sort solution equilibria formation of manganese ii complexes with ethylenediamine 1 3 propanediamine and 1 4 butanediamine in methanol
topic manganese(II) complexes
equilibria
formation constants
url https://www.mdpi.com/1422-8599/2022/2/M1367
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