Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Zinc(II) and copper(II) complexes of pentacoordinating (N4S) ligands with flexible pyrazolyl arms: syntheses, structure, and redox and spectroscopic properties|
|Citation:||Inorganic Chemistry, 1996; 35(7):1967-1973|
|Sudeep Bhattacharyya, Sujit Baran Kumar, Subodh Kanti Dutta, Edward R. T. Tiekink and Muktimoy Chaudhury|
|Abstract:||Zinc(II) and copper(II) complexes of two new potentially pentadentate ligands based on methyl 2-aminocyclopent-1-ene-1-dithiocarboxylate with pendent pyrazolyl groups (Me2pzCH2)2NC2H3RNHC5H6CSSCH3 (R = H, Hmmecd, and R = CH3, Hmmpcd, both having N4S donor atoms set) have been reported. The molecular structures of [Zn(mmpcd)]ClO4 (1b) and [Cu(mmpcd)]ClO4 (2b) show a distorted trigonal bipyramidal geometry for the Zn(II) ion and a square pyramidal geometry for the Cu(II) ion. 1b crystallizes in the triclinic space group P, a = 9.900(3) Å, b = 15.379(5) Å, c = 8.858(2) Å, α = 99.93(2)°, β = 93.62(2)°, γ = 100.38(2)°, V = 1300.5(7) Å3, and Z = 2; while 2b crystallizes in the monoclinic space group P21/n, a = 12.859(6) Å, b = 12.642(3) Å, c = 16.503(2) Å, β = 102.67(2)°, V = 2617(1) Å3, and Z = 4. The structures were refined to final R = 0.042 for 1b and 0.049 for 2b. The EPR and electronic spectroscopic studies showed that the copper(II) species doped into zinc(II) complex adopts the zinc(II) trigonal bipyramidal structure. The cyclic voltammetric measurements indicated one-electron reversible reduction of the copper(II) complex occurring at −0.74 V, while irreversible oxidation to copper (III) takes place at +0.75 V (vs Ag/AgNO3).|
|Rights:||© 1996 American Chemical Society|
|Appears in Collections:||Chemistry publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.