The first example of calix[4]pyrrole functionalized vic-dioxime ligand: Synthesis, characterization, spectroscopic studies and redox properties of the mononuclear transition metal complexes
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE SA
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Novel calix[4] pyrrole bearing vic-dioxime ligand (LH2) of the general formula, R1R2C2N2O2H2 (where, R-1 = C6H5- and R-2 = C39H50N5-) has been synthesized by the reaction of anti-chlorophenylglyoxime with 3-aminophenylcalix[4] pyrrole at room temperature. The mononuclear Cu(II), Ni(II) and Co(II) complexes of this vic-dioxime ligand were prepared and their structures were confirmed by elemental analysis, FT-IR, TGA and magnetic susceptibility measurements; the HMBC, DEPT, H-1 and C-13 NMR spectra of the LH2 ligand were also reported. The electrochemical property of the complexes was investigated in DMSO by cyclic voltammetry at 200 mV s (1) scan rate. The cyclic voltammetric measurements clearly indicated that Co(LH)(2)center dot 2H(2)O complex differs from the Ni(LH)(2) and Cu(LH)(2) complexes upon the exhibition of quasi-reversible one-electron transfer reduction process in the negative region instead of an irreversible process. (C) 2010 Elsevier B. V. All rights reserved.
Açıklama
Anahtar Kelimeler
vic-Dioximes, Transition metal complexes, Calix[4] pyrrole, 3-Aminophenylcalix[4] pyrrole, Cyclic voltammetry
Kaynak
INORGANICA CHIMICA ACTA
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
363
Sayı
14
