2015
DOI: 10.1016/j.kijoms.2015.11.005
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Complex formation equilibria of 2,2′-bipyridyl and 1,10-phenanthroline with manganese(II) in methanol

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Cited by 7 publications
(2 citation statements)
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“…Figure D, curve b, shows the UV–vis spectra of an extract of GCE/f-MWCNT@Mn­(phen)­Cl in ethanol solution which displays a distinctly different pattern against the precursor Mn­(phen) 2 Cl 2 complex (Figure D, curve a). The precursor Mn­(phen) 2 Cl 2 complex displayed characteristic peaks at 244, 290, and 350 analogous to the π–π* transition of the aromatic phen ligand (244, 290) and metal-to-ligand charge transistion (MLCT) of the manganese­(II)­bis­(1,10-phenanthroline) chloride complex . Whereas, the electronic spectra of ethanolic solution of GCE/f-MWCNT@Mn­(phen)Cl (Figure D, curve a) exhibits peaks at 239, 276, and 315 nm along with a low energy broad absorption peak at 478 nm due to transitions between molecular orbitals composed of orbital dπ of Mn and pπ of the oxo-bridge existing of a typical of oxo-ligand of a Mn­(phen) dimers, Mn III –μ-O oxo –Mn III . In order to confirm the true Mn-complex species, ESI-MS analysis of ethanloic solution of the modified electrode was analyzed in comparison with the precursor complex [Mn II (phen) 2 Cl] + (ca.…”
Section: Results and Discussionmentioning
confidence: 99%
“…Figure D, curve b, shows the UV–vis spectra of an extract of GCE/f-MWCNT@Mn­(phen)­Cl in ethanol solution which displays a distinctly different pattern against the precursor Mn­(phen) 2 Cl 2 complex (Figure D, curve a). The precursor Mn­(phen) 2 Cl 2 complex displayed characteristic peaks at 244, 290, and 350 analogous to the π–π* transition of the aromatic phen ligand (244, 290) and metal-to-ligand charge transistion (MLCT) of the manganese­(II)­bis­(1,10-phenanthroline) chloride complex . Whereas, the electronic spectra of ethanolic solution of GCE/f-MWCNT@Mn­(phen)Cl (Figure D, curve a) exhibits peaks at 239, 276, and 315 nm along with a low energy broad absorption peak at 478 nm due to transitions between molecular orbitals composed of orbital dπ of Mn and pπ of the oxo-bridge existing of a typical of oxo-ligand of a Mn­(phen) dimers, Mn III –μ-O oxo –Mn III . In order to confirm the true Mn-complex species, ESI-MS analysis of ethanloic solution of the modified electrode was analyzed in comparison with the precursor complex [Mn II (phen) 2 Cl] + (ca.…”
Section: Results and Discussionmentioning
confidence: 99%
“…S5 †). 14 Inductively coupled plasma optical emission spectroscopy (ICP-OES) suggested the presence of 0.8 wt% Mn in MnPhen@ZIF.…”
mentioning
confidence: 99%