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• W2091750679 abstract "Abstract Five manganese(IV) complexes [Mn(L)(bpy)] (1) and heterobimetallic complexes [MMn(L)Cl 2 (H 2 O) 4 ]·1.5H 2 O (M = Zn II (2), Cu II (3)) and [MnM(L)(bpy)Cl 2 ] (M = Zn II (4), Cu II (5)] have been synthesized from bis(2-hydroxy-1-naphthaldehyde)oxaloyldihydrazone (H 4 L) in methanol medium. The composition of the complexes have been established based on the data obtained from analytical, thermoanalytical and mass spectral studies. The structures of the complexes have been discussed in the light of molar conductance, magnetic moment, electronic, EPR, IR, FT-IR spectroscopic studies and transmission electron microscopies. The molar conductance values of these complexes in DMSO suggest their non-electrolytic nature. The μ eff value for the complexes (1), (2) and (4) fall in the range 3.82–4.12 BM characteristic of the presence of the manganese(IV) in them. The complex (3) has μ eff value of 3.70 BM at RT indicating considerable antiferromagnetic interaction between Mn(IV) and Cu(II). The μ eff value of 4.72 BM for complex (5) is slightly lower than 4.90 BM for S = 2 ground state. In the complex (1) to (3) , the ligand is coordinated to the metal centres as tetradentate ligand while in the complexes (4) and (5) as hexadentate ligand. Manganese(IV) has distorted octahedral stereochemistry in all complexes. Copper(II) has distorted octahedral and square planar stereochemistry in complexes (3) and (5) while zinc has distorted octahedral and tetrahedral stereochemistry, respectively. EPR studies of the complexes are also reported. The electron transfer reactions of the complexes have also been investigated by cyclic voltammetry." @default.
• W2091750679 created "2016-06-24" @default.
• W2091750679 creator A5017270283 @default.
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• W2091750679 date "2014-02-01" @default.
• W2091750679 modified "2023-09-27" @default.
• W2091750679 title "Synthesis, characterization and electrochemical studies of heterometallic manganese(IV)–zinc(II) and manganese(IV)–copper(II) complexes derived from bis(2-hydroxy-1-naphthaldehyde)oxaloyldihydrazone" @default.
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• W2091750679 doi "https://doi.org/10.1016/j.molstruc.2013.12.027" @default.
• W2091750679 hasPublicationYear "2014" @default.
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