In the present work, a new semithiocarbazone ligand C3NH4CONHNC(CH3) C6H4OH H4L2 have been isolated and characterized by single-crystal X-ray diffraction. Compound H4L2 crystallizes in the monoclinic system space grou...In the present work, a new semithiocarbazone ligand C3NH4CONHNC(CH3) C6H4OH H4L2 have been isolated and characterized by single-crystal X-ray diffraction. Compound H4L2 crystallizes in the monoclinic system space group P21/n with a = 10.9328(9), b = 8.1700(6), c = 13.8095(11) Å, β = 93.7591(14)˚, V = 3671.57(9) Å3, Z = 16, Z’ = 2. Semithiocarbazone connected through NH···O and OH···O hydrogen bonds. In the crystal, the structure is organized in layer-like arrangements. Structural characterizations were completed by infrared and 1H, 13C{1H} spectroscopy and elemental analysis which corroborate the X-ray elucidations. In another case, this organic compound is submitted to antioxidant test. The test has been done by using Akhtar et al. methods [1] with some modifications. The tests are done with different concentration of solutions between 100 to 500 μM. The values of per cent of inhibition (5.18% - 25.90%) of the solution containing semithiocarbazone organic compound show a real difference compared to the values of the reference TROLOX. These results show that our organic ligand C3NH4CONHNC(CH3)C6H4OH is a good antioxidant compound.展开更多
A new Zn(II) complex with the monodentate ligand methyl-(2-pyridin-2-yl-ethyl)-ammonium, ZnCl3C8H13N2, has been prepared and characterized by single crystal X-ray diffraction. The Zn(II) ion is tetracoordinated by one...A new Zn(II) complex with the monodentate ligand methyl-(2-pyridin-2-yl-ethyl)-ammonium, ZnCl3C8H13N2, has been prepared and characterized by single crystal X-ray diffraction. The Zn(II) ion is tetracoordinated by one nitrogen atom of organic ligand and three chlorine ligands. In the atomic arrangement, the ZnNCl3 tetrahedra form corrugated chains extending along the b-axis. The organic entities are located between these chains through N-H···Cl, C-H···Cl and C-H···N hydrogen bonds to form layers parallel to (b, c) plan. Among these hydrogen bonds two are bifurcated.展开更多
文摘In the present work, a new semithiocarbazone ligand C3NH4CONHNC(CH3) C6H4OH H4L2 have been isolated and characterized by single-crystal X-ray diffraction. Compound H4L2 crystallizes in the monoclinic system space group P21/n with a = 10.9328(9), b = 8.1700(6), c = 13.8095(11) Å, β = 93.7591(14)˚, V = 3671.57(9) Å3, Z = 16, Z’ = 2. Semithiocarbazone connected through NH···O and OH···O hydrogen bonds. In the crystal, the structure is organized in layer-like arrangements. Structural characterizations were completed by infrared and 1H, 13C{1H} spectroscopy and elemental analysis which corroborate the X-ray elucidations. In another case, this organic compound is submitted to antioxidant test. The test has been done by using Akhtar et al. methods [1] with some modifications. The tests are done with different concentration of solutions between 100 to 500 μM. The values of per cent of inhibition (5.18% - 25.90%) of the solution containing semithiocarbazone organic compound show a real difference compared to the values of the reference TROLOX. These results show that our organic ligand C3NH4CONHNC(CH3)C6H4OH is a good antioxidant compound.
文摘A new Zn(II) complex with the monodentate ligand methyl-(2-pyridin-2-yl-ethyl)-ammonium, ZnCl3C8H13N2, has been prepared and characterized by single crystal X-ray diffraction. The Zn(II) ion is tetracoordinated by one nitrogen atom of organic ligand and three chlorine ligands. In the atomic arrangement, the ZnNCl3 tetrahedra form corrugated chains extending along the b-axis. The organic entities are located between these chains through N-H···Cl, C-H···Cl and C-H···N hydrogen bonds to form layers parallel to (b, c) plan. Among these hydrogen bonds two are bifurcated.
