Ciumacov, IurieSamusi, NinaBocelli, GabrielleSuponițchi, ChirilȚapcov, VictorGulea, Aurelian2023-10-252023-10-252006CIUMACOV, Iurie, SAMUSI, Nina, BOCELLI, Gabrielle, SUPONIȚCHI, Chiril, ȚAPCOV, Victor , GULEA, Aurelian. Crystal structures of 3-phenylpropenal thiosemicarbazone and its nickel and zinc chelates. În: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, 2006, vol. 32, pp. 14-20. ISSN 1070-32841070-3284https://msuir.usm.md/handle/123456789/11457https://doi.org/10.1134/S10703284060100403-Phenylpropenal thiosemicarbazone hydrate C6H 5-HC=CH-CH=N-NH-C(S)-NH2 • H2O (HL • H2O, I) and two chelates [Ni(L)2] • nCH3OH (II) and [Zn(L)2] (III) are studied by X-ray diffraction. The crystals of I are orthorhombic: a = 6.227(1) Å, b = 7.763(2) Å, c = 25.585(5) Å, β = 90°, space group P212 121, Z = 4, R = 0.0426. A nonplanar molecule of I has an E conformation. The crystals of II are triclinic: a = 6.551(2) Å, b = 10.752(3) Å, c = 10.885(3) Å, α = 64.751(5)°, β = 82.753(5)°, γ = 89.857(5)°, space group, Z = 1, R = 0.0661. In a centrosymmetric molecule of II, the central atom coordinates two deprotonated ligands L through the immine nitrogen atom and thioamide sulfur atom at the vertices of a distorted square. The crystals of III are monoclinic: a = 25.342(2) Å, b = 9.150(2) Å, c = 21.340(3) Å, α = 90°, β = 111.84(2)°, γ = 90°, space group C2/c, Z = 8, R = 0.0556. In a molecule of complex III, two deprotonated bidentate ligands L are coordinated by the zinc ion through the immine nitrogen atoms and thioamide sulfur atoms to form a distorted tetrahedron at the central atom. In both II and III, ligand L after coordination by the metal ion changes the E conformation with respect to the N(1)-C(2) bond for the Z conformation. In crystals I-III, molecules are packed to form infinite layers parallel to the planes (001) and (010)enEngineering controlled terms Conformationscrystal structurenickelNickel compoundsNitrogenZincZinc compounds Engineering uncontrolled terms Deprotonated ligandsSpace groupVertices Engineering main heading Aromatic compoundsArticle