219823-70-8Relevant academic research and scientific papers
Crystal structures and physicochemical studies of some novel divalent and trivalent transition metal chelates of N-morpholine-N'-benzoylthiourea
Ketchemen, Kevin I.Y.,Khan, Malik Dilshad,Mlowe, Sixberth,Akerman, Matthew P.,Vitorica-Yrezabal, Inigo,Whitehead, George,Nyamen, Linda D.,Ndifon, Peter T.,Revaprasadu, Neerish,O'Brien, Paul
, (2021/01/18)
A series of Fe(III), Co(III), Ni(II), Cu(II), Zn(II) and In(III) N-morpholine-N'-benzoylthiourea complexes have been synthesised and characterised by elemental analysis, thermal analysis, infrared spectroscopy, 1H nuclear magnetic resonance spectroscopy and single crystal X-ray crystallography. Thermogravimetric analysis shows that all the complexes undergo a two-step decomposition process except for the iron(III) complex and the indium(III) complexes, which show three-step and one-step decompositions, respectively. The complexes are thermally stable up to approximately 300 °C. The ligand coordinates the various metal ions in a bidentate (L-kO,S) chelating mode, facilitated by deprotonation of the acidic amide (–C(O) N'HC (S)) moiety. This mode of coordination allows for the facile formation of neutral bis/tris-6-membered chelates of type [M(L-kS,O)x] where x = 2 or 3 for divalent or trivalent metal ions, respectively.
Copper(II) Complex Formation with 1,1-Dialkyl-3-benzoylthioureas in Gelatin-immobilized Copper(II) Hexacyanoferrate(II) Matrix Systems
Tatarintseva,Mikhailov
, p. 218 - 222 (2008/10/08)
The complex formation that occurs in gelatin-immobilized copper(II) hexacyanoferrate(II) matrices upon their contact with aqueous alkaline solutions of 1-pentamethylene-, 1-(3-oxapentamethylene)-, 1-methyl-1-phenyl-, or 1,1-dibenzyl-3-benzoylthiourea is studied. The coordination of these ligands by Cu(II) is preceded by the decomposition of Cu2[Fe(CN)6] to copper(II) hydroxide Cu(OH)2 in an alkaline medium. In the Cu(II)-3-benzoylthiourea derivative systems, two types of complexes form: CuL(OH)H2O and CuL2 (L- is a monodeprotonated ligand).
