Bis(citrato)germanate complexes with organic cations: Crystal structure of (HNic)2[Ge(HCit)2]·3H2O

Synthesis and Structural Characteristics of Bis(Citrate)Germanates(IV) (Hbipy)2[Ge(HCit)2]·2H2 and [CuCl(bipy)2]2[Ge(HCit)2]·8H2O

“…The IR absorption spectra of the ligand and the complexes were collected from KBr pellets on a Frontier spectrophotometer (Perkin Elmer) in the 400-4000 cm -1 range. The most important absorption bands in the IR spectra of complexes and 2 were attributed in compliance with the literature data [13][14][15][16], including data for the germanium(IV) coordination compounds with citric acid [2][3][4][5][6][7] (s. -strong, m. -middle, w. -weak).…”

“…We have obtained the Eu Addition of nitrogen-containing heterocyclic organic molecules such as 2,2ʹ-bipyridine into composition of coordination compounds of germanium(IV) with citric acid can modify its properties. Similar compound with tris(oxalato-O,O')germanate anion (Hbipy) 2 [Ge(C 2 O 4 ) 3 ] has been isolated after a mild hydrothermal synthesis and its structure has been elucidated [11]. The chelate [GeCl(bipy)(HCit)]·2.5CH 3 CN has also been synthesized by the reaction between the adduct [GeCl 4 (bipy)] and citric acid in acetonitrile solution [12].…”

“…Full use of the CCDC package was also employed for searching in the CSD Database. Synthesis (Hbipy) 2 [Ge(HCit) 2 ]·2H 2 O (1). A mixture of 0.084 g GeО 2 (0.8 mmol), 0.336 g H 4 Cit⋅Н 2 О (1.6 mmol) and 0.256 g bipy (1.6 mmol) was added to 100 mL of hot water.…”

“…In the past time, we have synthesized and studied a number of mixed-ligand and mixed-metal coordination compounds of germanium(IV) with citric acid [2][3][4][5][6][7]. The pharmacological activity of some of these compounds has been approved [8].…”

“…General, Industrial and Ecological Chemistry. 2016, 11(2), 52-57 http://cjm.asm.md http://dx.doi.org /10.19261/cjm.2016.11 (2).11 2 …”