A Hirshfeld surface analysis, crystal structure and spectroscopic properties of new Zn(II) complex with N-aminoethylpiperazine ligand

Abstract

A new organic-inorganic hybrid material, 1-amonioethylpiperazine-1, 4-diium tetrachloridozincate(II) chloride, (C6H18N3)[ZnCl4]Cl, has been synthesized and characterized by various physicochemical techniques including UV-visible absorption, Infra-Red (IR), Raman and NMR spectroscopies. The compound crystallizes in the monoclinic system and P21 space group with Z = 2 and the following unit cell dimensions: a = 7.1728 (6), b = 12.4160 (11),

Synthesis, structure and characterization of two new Zn(II) and Cd(II) complexes with the bidentate ligand 2-[(2-aminoethyl)amino]ethanaminium (AEEA)

“…the apparent lack of splitting for both 13 C peaks it is thus reasonable to assume that the signals overlap in pairs. The first resonance, at about 39 ppm can be assigned to the two CH 2 groups neighboring the protonated NH 3 + and zinc coordinated NH 2 groups (C1 and C4) [32]. The second signal at 46 ppm can be attributed the two CH 2 groups adjacent to the zinc coordinated NH group (C2 and C3) [33].…”

Crystallographic and computational study of a network composed of [ZnCl4]2− anions and triply protonated 4′-functionalized terpyridine cations

“…those involving the chloride anions [H OH Á Á ÁCl (1.99), H C Á Á ÁCl (1.92) and H N Á Á ÁCl (1.73)] and the O atom of the water molecule (H N Á Á ÁO 18.19). For the special case of the enriched H C Á Á ÁZn interaction (2.48), it has been suggested that this results from the closeness of the relevant H C Á Á ÁCl interactions (El Glaoui et al, 2017). A surprising fact, however, was to find an increase in the enrichment ratio of contacts between atoms of the (ITPH 3 ) 3+ cations [CÁ Á ÁC (1.47) and CÁ Á ÁN (2.25); Table 6], compared with those of neutral free (I) [CÁ Á ÁC (1.17) and CÁ Á ÁN (0.92); Table 7], despite the former having an ab initio drawback, viz.…”