Tetraaquabis[2-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)acetato]zinc

Abstract

The ZnII ion in the title compound, [Zn(C9H6NO4)2(H2O)4], is located on an inversion center and is octahedrally coordinated by two 2-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)acetate anions in axial sites and four water molecules in equatorial positions. In the crystal, O—H...O hydrogen bonds between the coordinated water molecules and carbonyl–carboxylate O atoms lead to pleated sheets parallel to (001)

2-Aminobenzoxazole–oxalic acid (2/1)

“…1. The geometric parameters of the arene and oxazole rings are similar to standard values and to those in other related structures (Ashurov et al, 2011(Ashurov et al, , 2015Wang et al, 2016). In the oxalate (OXL) part of the organic salt, two hydrogen atoms are transferred to the nitrogen of the oxazole fragments, as in other 2-aminobenzoxazole (2ABO) structures (Nandy et al, 2016;Razzoqova et al, 2022Razzoqova et al, , 2023.…”

Charge density of the biologically active molecule (2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid

“…We present our results of both considerations in Table 2. (a) Three isomorphous complexes with the composition [ML 2 (H 2 O) 4 ] (M = Co II , Cu II and Zn II ) have been reported (Ashurov et al, 2011(Ashurov et al, , 2014. The benzoxazolone derivative acts as a carboxylato ligand coordinated through a single oxygen atom; thus no steric strain due to the chelation arises.…”

“…No structural study for this compound has been published to date, but it has been used as a ligand and successfully coordinated to divalent transition metal cations; crystal structures of the resulting mononuclear complexes have been reported (Ashurov et al, 2011(Ashurov et al, , 2014. In this contribution, we communicate the synthesis and characterization of the title compound.…”

Crystal structure and Hirshfeld surface analysis of 8-azaniumylquinolinium tetrachloridozincate(II)

“…About 20% of them feature zinc as a structural component (Banci et al, 2002;Andreini & Bertini, 2012). Zinc complexes exhibit a wide range of coordination numbers and coordination spheres, with tetrahedral (Ashurov et al, 2018;Petrus et al, 2020) and octahedral (Ashurov et al, 2011) environments being the most frequently observed.…”