Trans-dichlorotetrakis(1H-pyrazole-kappa N-2)copper(II): Synthesis, crystal structure, hydrogen bonding graph-sets, vibrational and DFT studies
Makaleler > Tam Makale · 2015
Yazarlar: Amani DIREM, Mahir Tursun, Cemal PARLAK, Nourredine BENALI-CHERIF
JOURNAL OF MOLECULAR STRUCTURE, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2015, cilt 1093, ss 208-218
DOI: 10.1016/j.molstruc.2015.03.068
Özet
The copper complex [Cu(HPrz)(4)]Cl-2 (HPrz = Pyrazole) was synthesized and its structure was characterized by FT-IR, Raman and single-crystal X-ray diffraction (XRD) techniques. The structural conformers, optimized geometric parameters, normal mode frequencies and corresponding vibrational assignments of the compound were examined by means of the density functional theory (DFT) method, the Becke-3-Lee-Yang-Parr (B3LYP) functional, the 6-311+G(3df,p) and lanl2dz basis sets. Reliable vibrational assignments were investigated by the potential energy distribution (PED) analysis. The compound crystallizes in the monoclinic space group C2/c with the unit cell parameters a = 13.5430 (10) angstrom, b = 9.1480 (10) angstrom, c = 14.6480 (10) angstrom and beta = 116.7 degrees (5). There is a good agreement between the theoretically predicted structural parameters and vibrational frequencies and those obtained experimentally. The findings of this work reveals further insight into molecular copper(II) pyrazole systems. (C) 2015 Elsevier B.V. All rights reserved.