Stability of Manganese(II)-Pyrazine, -Quinoxaline or -Phenazine Complexes and Their Potential as Carbonate Sequestration Agents.

ABSTRACT: Carbonate sequestration technology is a complement of CO₂ sequestration technology, which might assure its long-term viability. In this work, in order to explore the interactions between Mn²⁺ ion with several ligands and carbonate ion, we reported a spectrophotometric equilibrium study of complexes of Mn²⁺ with pyrazine, quinoxaline or phenazine and its carbonate species at 298 K. For the complexes of manganese(II)-pyrazine, manganese(II)-quinoxaline and manganese(II)-phenazine, the formation constants obtained were log β₁₁₀ = 4.6 ± 0.1, log β₁₁₀ = 5.9 ± 0.1 and log β₁₁₀ = 6.0 ± 0.1, respectively. The formation constants for the carbonated species manganese(II)-carbonate, manganese(II)-pyrazine-carbonate, manganese(II)-quino

SUBMITTER: Segoviano-Garfias JJN 

PROVIDER: S-EPMC8911680 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature