Synthesis and characterization of a family of M2+ complexes supported by a trianionic ONO3− pincer-type ligand: towards the stabilization of high-spin square-planar complexes

2015 ◽  
Vol 44 (46) ◽  
pp. 20207-20215 ◽  
Author(s):  
M. E. Pascualini ◽  
S. A. Stoian ◽  
A. Ozarowski ◽  
N. V. Di Russo ◽  
A. E. Thuijs ◽  
...  

A trianionic pincer-type ligand stabilizes rare Fe(ii) and Co(ii) high spin, square-planar complexes.

2013 ◽  
Vol 10 (3) ◽  
pp. 650-657
Author(s):  
Baghdad Science Journal

This research involves the preparation of new ligands 1,1,2,2- tetrakis (sodium acetate thio)ethylene(L1) and 1,1,2- tris(sodiumacetatethio) ethylene(L2), through the reaction of disodium thioglycolate) with tetra chloro ethylene or tri chloro ethylene in (1:4) or (1:3) moler ratio . Homodinucliar complexes of general formlu [M2(L1)] and [M2(L2)ClH2O] , when M= Co(II), Ni(II), Cu (II) and Zn(II) also mono nuclear complexes of general formula [M(L2)] . The prepared complexes were characterized using spectral method (UV/Visible/ IR) , metal content analysis , magnetic and atomic measurements . The spectral and magnetic measurement indicats that some complexes have tetrahedral or square planar complexes environtment .


2002 ◽  
Vol 67 (2) ◽  
pp. 115-122 ◽  
Author(s):  
Srecko Trifunovic ◽  
Zorica Markovic ◽  
Dusan Sladic ◽  
Katarina Andjelkovic ◽  
Tibor Sabo ◽  
...  

Square planar complexes of Ni(II) and Cu(II) with potassium 3-dithiocarboxy 3-aza-5-aminopentanoate have been prepared by direct synthesis. The obtained neutral complexes were characterized by elemental analysis, magnetic susceptibility measurements, infrared and electronic spectra. The thermal behaviour of both the Ni(II) and Cu(II) complexes, and the ligand itself was investigated by DSC and TG.


Nanoscale ◽  
2021 ◽  
Author(s):  
Shantanu Mishra ◽  
Kun Xu ◽  
Kristjan Eimre ◽  
Hartmut Komber ◽  
Ji Ma ◽  
...  

Triangulene and its π-extended homologues constitute non-Kekulé polyradical frameworks with high-spin ground states, and are anticipated to be key components of organic spintronic devices. We report a combined in-solution and...


1995 ◽  
Vol 14 (7) ◽  
pp. 3418-3422 ◽  
Author(s):  
Franco Morandini ◽  
Giuseppe Pilloni ◽  
Giambattista Consiglio ◽  
Antonio Mezzetti

Polyhedron ◽  
2009 ◽  
Vol 28 (5) ◽  
pp. 954-958 ◽  
Author(s):  
Ibtissem Hachem ◽  
Mohamed Salah Belkhiria ◽  
Michel Giorgi ◽  
Charles E. Schulz ◽  
Habib Nasri

2016 ◽  
Vol 15 (2) ◽  
pp. 17-32
Author(s):  
Rita Bhattacharjee

A series of palladium(II) halo complexes of the types[PdX2L2].nH2O {n = 0, X = Cl, L = L4and L6; X = Br, L = L3,L4, L5 and L6; n = 2, X = Cl, L = L3and L7, X = Br, L = L1};Pd2X4L2 {X = Cl, Br, L = L2 and L8} and Pd2X4L3 [X = Cl, L= L1; X = Br, L = L7] were prepared where L is 6-R-5,6-dihydrobenzoimidazo quinazoline (R-Diq; where R =phenyl: L1/furyl: L2/thiophenyl: L3/o- or phydroxyphenyl: L4, L5/o- or p-chlorophenyl: L6,L7/dimethylaminophenyl: L8and characterized byelemental analyses, molar conductivity measurements,TGA, infrared, electronic, NMR and mass spectraltechniques. Based on these studies, monomeric/dimericstructure with a square planar geometry around the metalion was proposed for these complexes. Anti-microbialactivity for some of the synthesized complexes wereinvestigated.Keywords: dihydrobenzoimidazoquinazoline, palladium(II),thermal analysis, mass spectra, biological activity.


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