Specific features of the structure of germanium(IV) complexes with polybasic acids

Heteronuclear alkali metal bis(μ-trihydroxyglutarato)dihydroxodigermanates(IV): The crystal and molecular structure of K4[Ge2(μ-Thgl)2(OH)2] · 4H2O

“…The Ge-O bond lengths are comparable with the data for Ge complexes with carboxylate anions[7].StructureIII, [Cu(H 2 O) 6 ][Ge(μ 3 Thgl) 2 {Cu(H 2 O) 2 } 2 ] · 2H 2 O, substantially differs from structure I. In the centrosymmetric trinuclear anion of complex III, the central Ge atom is linked by two fully deprotonated (as in I) ligands Thgl 5-to two Cu atoms.…”

Mathematical modeling for facilitated transport of Ge(IV) through supported liquid membrane containing Alamine 336

“…As seen in Fig. 1 Sergienko et al (2010) was formed in a solution with a pH of 2. Thus, since the condition of the latter research is more similar to that of the current study, it can be concluded that…”

“…Mattock (1954) reported the existence of the 1:1 germanium-tartrate species, and stated this fact that the presence of 2:1 and 1:2 germanium-tartrate could be possible. Sergienko et al (2010) investigated on the structure of germanium(IV) complexes with tartaric acid prepared in a solution with a pH of 2 and concluded that germanium-tartrate was in the form of…”

“…(1) and (2) were proposed with respect to the tartaric acid dissociated species, in which the ratio of Ge: tartrate was reported to be 1:1. Furthermore, based on species introduced in the literature (Martsinko et al 2008;Sergienko et al 2010), a reaction was proposed as Eq. 3, in which…”

Study on the Equilibria of the Complex Formation of the Ion-pair of Germanium(IV) with 4-Nitrocatechol and 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazole

“…The complexes of germanium with chelate ligands containing O, N and S donor atoms have diverse industrial, biological, pharmacological and medical applications. [9][10][11][12][13][14][15][16][17] Germanium(IV) gives colored chelates with aromatic compounds, containing two or more hydroxyl groups in o-position relative to each other. The colored anionic chelates of Ge(IV) form ion-associated complexes with bulky organic cations, like tetradecyl(trihexyl)phosphonium, methyltrioctylammonium, tetrazolium, cetylpyridinium, cetyltrimethylammonium, tetraphenylammonium, tetraphenylarsonium.…”