Thermal intramolecular cobalt(III)-iron(II) and cobalt(III)-titanium(III) electron-transfer reactions involving outer-sphere and inner-sphere precursor complexes

Aqueous Reductive Dechlorination of Chlorinated Ethylenes with Tetrakis(4-carboxyphenyl)porphyrin Cobalt

“…Arguments for and against the involvement of the peripheral moieties, such as the carboxylates of TCPP complexes, in electron-transfer reactions have been put forth. There are significant precedents for OH and other groups to act as bridging ligands for electron transfer with Ti III and Cr II as the reducing agents. − We, currently, do not favor an inner-sphere pathway involving the peripheral carboxylates. Evidence against a peripheral inner-sphere mechanism comes from the pH dependence data (where no dehalogenation was observed despite the presence of free carboxylates) and dehalogenation experiments using Cr II as the bulk electron source.…”

Interaction of pyridine‐ and 4‐hydroxypyridine‐2,6‐dicarboxylic acids with heavy metal ions in aqueous solutions

“…Much is known on the preparation, crystalline structure, and properties of the Cu(II) [5][6][7][8], Fe(II) [9], Fe(III) [9][10][11][12], Mn(II) [6,13], Mn(III) [14,15], Ag(I) [1,16], Co(II) [5,6], Co(III) [17], Pt(II) [18], Ti(III) [19], Ni(II) [5,6], and Zn(II) [5,6] complexes. The metal-to-ligand stoichiometry 1:1 was found for complexes of Cu(II) [8] and Fe(II) [9], dinuclear and polymeric complexes were determined in the case of Ag(I) complexes [1,16], whereas 1:2 complexes were observed for Cu(II) [5][6][7], Fe(II) and Fe(III) [9][10][11][12], Mn(II) and Mn(III) [6,[13][14][15], Co(II) and Co(III) [5,6,17], Pt(II) [18], Ti(III) [19], Ni(II) [5,6], and Zn(II) [5,…”

Übergangsmetallkomplexe der Pyrazin‐2,6‐dicarbonsäure und der Pyridin‐2,6‐dicarbonsäure: Synthesen und Elektrochemie. Die Kristallstruktur von NH4[RuCl2(dipicH)2]

“…Ti[21], Cr[13], Mn[ll, 221, Fe[lO], Co[9], Rh[23] bzw. Ru[16] sind in wal3riger Losung hervorragend stabil.…”