X-Ray Structures of Three Polymeric and Two Mononuclear Metal Complexes on the Base of p-Aminobenzoic Acid

Ибрагимов, А. А.; Ashurov, Jamshid; Закиров, Б. С.

doi:10.1007/s10870-016-0665-8

Cited by 15 publications

(1 citation statement)

References 14 publications

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“…However, more encouraging is the combination of organic salts, DNBA and en as well as mixed-ligand complexes comprising respective ligands. Promising results have already been achieved in the case of 4-nitrobenzoic acid (Ibragimov et al, 2017), 4-aminobenzoic acid (Ibragimov et al, 2016) and 3hydroxybenzoic acid (Ibragimov, 2016). A search of the Cambridge Structural Database (Groom et al, 2016) has revealed that organic salts on the basis of DNBA have already been obtained [refcodes VUJXIH (Nethaji et al, 1992) and FONCER (Jones et al, 2005)] and therefore we made another attempt and synthesized a cadmium-based mixed-ligand complex.…”

Section: Data Reportsmentioning

confidence: 99%

Bis(3,5-dinitrobenzoato-κO)bis(ethane-1,2-diamine-κ² N,N′)cadmium(II)

Ибрагимов

2020

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During systematic investigations of bioavailability and biological action enhancement of well known compounds with low bioactivity, a new mixed-ligand metal complex, [Cd(DNBA)2(en)2)] (DNBA = 3,5-dinitrobenzoate, C7H3N2O6; en = ethylendiamine, C2H8N2), has been synthesized. The complex molecules are located on inversion centers. Two DNBA anions monodentately coordinate the CdII atom through an oxygen atom of the carboxylate group while two en molecules coordinate in a chelate fashion, resulting in a distorted O2N4 coordination set. There is a weak intramolecular hydrogen bond of 3.099 (4) Å between the non-coordinating oxygen atom of the carboxylate group and one of the en amine groups. Three relatively weak intermolecular N—H...O hydrogen bonds associate complex molecules into sheets extending parallel to (0\overline{1}1), which are further stabilized by π–π interactions. A Hirshfeld surface analysis of the crystal structure indicates that the most important contributions to the crystal packing are from H...O/O...H (50.2%) and H...H (21.1%) interactions.