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Ionic metallo‐Schiff base polymers of VO 2+ , Zn 2+ and Cu 2+ : Synthesis, characterization and solid‐state conductivity
Author(s) -
Ghavami Zohreh S.,
Grivani Gholamhossein
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4916
Subject(s) - chemistry , schiff base , ethylenediamine , inorganic chemistry , ligand (biochemistry) , polymer chemistry , chelation , polymer , ionic bonding , ion , organic chemistry , biochemistry , receptor
The viologen‐type dialdehyde of [ N , N ′‐bis(methylsalicylaldehyde)‐4,4′‐bipyridinium] dichloride (DA) was synthesized by reacting 5‐chloromethylsalicylaldehyde and 4,4′‐bipyridine. Then a new polymeric Schiff base ligand (PSBL) was synthesized by the condensation reaction of ethylenediamine and DA in methanol under reflux conditions. Afterwards, new ionic metallo‐Schiff base polymers (IMSPs) were synthesized by reacting PSBL with VO(acac) 2 , ZnCl 2 and CuCl 2 via coordination chelation. DA, PSBL and IMSPs were characterized using various analytical methods and spectral techniques. The solid‐state electrical conductivities of PSBL and IMSPs were studied. The electrical conductivity of these polymers at 300 K ranged from 1.30 × 10 −5 to 4.52 × 10 −10 Ω −1 m −1 , which means they are potential organic and metallo‐organic semiconductors.