Abstract
Abstract Lanthanum(III), cerium(III), praseodymium(III), neodymium(III), samarium(III) and europium(III) form complexes in 1:1, 1:2 and 1:3 stoichiometric ratios with the ligands 2-thiophenealdehyde salicyloylhydrazone(tash) and indole-3-aldehyde semicarbazone(iasc). The complexes have been characterised on the basis of elemental analyses, spectral, magnetic and thermal data. tash is a tetradentate ligand forming complexes upto maximum coordination number of twelve for the lanthanide ion whereas the iasc behaves as bidentate and the other coordination sites are occupied by aqua/or acido ions. The spectral parameters bonding (b½), covalency angular overlap(λ), Sinha′s covalency (δ), have been calculated and indicate partial covalent bonding developing between the lanthanide metal and ligand in these complexes. Higher μRT values for Sm(III) and Eu(III) complexes along with structural characteristics of the lanthanide complexes are discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
