title: Synthesis, structural characterization and biological activity of p-fluorobenzaldehyde thiosemicarbazones and of a nickel complex.
abstract: New thiosemicarbazones (1-7), derived from p-fluorobenzaldehyde and differently substituted thiosemicarbazides, were synthetized and characterized by means of NMR and IR techniques. The p-fluorobenzaldehyde thiosemicarbazone Hfbt (1), the p-fluorobenzaldehyde 4-phenylthiosemicarbazone Ph-Hfbt (4) and complex [Ni(fbt)2] (8) were also characterized by X-ray diffractometry. Molecules 1 and 4 consist of two units: the p-fluorobenzaldehyde residue and the thiosemicarbazonic chain. In the reaction of 1 with NiAc2.4H2O, complex 8 was afforded. The molecular structure of 8 consists of the neutral molecules [Ni(fbt)2] with the metal placed on a symmetry centre. The coordination results in a square planar configuration and involves the sulphur atom and the hydrazine nitrogen atom of the two ligands in a trans configuration. Moreover, for compounds 1, 2, 4, and 8, assays of proliferation inhibition and apoptosis tests in vitro on human leukemia cell line U937 were carried out.
authors.affiliation: Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Italy. chimic8@ipruniv.cce.unipr.it
authors.forename: M B
authors.initials: MB
authors.lastname: Ferrari
authors.forename: S
authors.initials: S
authors.lastname: Capacchi
authors.forename: G
authors.initials: G
authors.lastname: Reffo
authors.forename: G
authors.initials: G
authors.lastname: Pelosi
authors.forename: P
authors.initials: P
authors.lastname: Tarasconi
authors.forename: R
authors.initials: R
authors.lastname: Albertini
authors.forename: S
authors.initials: S
authors.lastname: Pinelli
authors.forename: P
authors.initials: P
authors.lastname: Lunghi
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D001547:Benzaldehydes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002455:Cell Division / Q000187:drug effects; D018360:Crystallography, X-Ray; D006801:Humans; D007202:Indicators and Reagents; D008958:Models, Molecular; D008968:Molecular Conformation; D009532:Nickel; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship; D013882:Thiosemicarbazones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D020298:U937 Cells; D014961:X-Ray Diffraction
chemical_list: D001547:Benzaldehydes; D007202:Indicators and Reagents; D009942:Organometallic Compounds; D013882:Thiosemicarbazones; D009532:Nickel