title: Manganese(II) complexes of substituted di-2-pyridyl ketone thiosemicarbazones: structural and spectral studies.
abstract: The reaction between manganese(II) acetate and two substituted thiosemicarbazones derived from di-2-pyridyl ketone (HL) in 1:2 molar ratio produces new complexes of general formula [MnL2]. The thiosemicarbazone moiety in HL deprotonates and gets coordinated to Mn(II) through the azomethine nitrogen, one of the pyridyl nitrogens, and the thiolate sulfur in both the complexes. The crystal structure of [MnL2(1)] was established by single crystal X-ray diffraction and the compound crystallizes into a monoclinic lattice with P2(1)/c space group. Manganese(II) exists in a distorted octahedral geometry in the complexes.
authors.affiliation: Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, Kerala, India.
authors.forename: Varughese
authors.initials: V
authors.lastname: Philip
authors.forename: V
authors.initials: V
authors.lastname: Suni
authors.forename: Maliyeckal R Prathapachandra
authors.initials: MR
authors.lastname: Kurup
authors.forename: Munirathinam
authors.initials: M
authors.lastname: Nethaji
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy; D007097:Imines / Q000138:chemical synthesis / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D011725:Pyridines / Q000138:chemical synthesis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013882:Thiosemicarbazones / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C418768:2,2'-dipyridylketone; C512100:2,6-pyridinedicarboxaldehyde(bis-o-hydroxyphenylimine); C512099:2,6-pyridinedicarboxaldehydebis(p-hydroxyphenylimine); D007097:Imines; D009942:Organometallic Compounds; D011725:Pyridines; D013882:Thiosemicarbazones; D008345:Manganese; D015082:2,2'-Dipyridyl