Table of Contents
Journal of Inorganic Chemistry
Volume 2014, Article ID 769573, 10 pages
Research Article

Copper(II) Complexes of 2-(Methylthiomethyl)anilines: Spectral and Structural Properties and In Vitro Antimicrobial Activity

1Department of Chemistry, Rhodes University, P.O. Box 90, Grahamstown 6140, South Africa
2Faculty of Pharmacy, Rhodes University, P.O. Box 90, Grahamstown 6140, South Africa
3Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth 6001, South Africa

Received 23 December 2013; Accepted 13 February 2014; Published 16 April 2014

Academic Editor: Roman Boča

Copyright © 2014 Temitope E. Olalekan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

The four corners of the square plane are occupied by the aniline nitrogen (N1), thioether sulfur (S1) and two chloride ions (Cl1, Cl2) which have cis arrangement to each other. One chlorido ligand (Cl1) is terminally bonded while the other (Cl2) is bonded to two other copper ions in adjacent molecules as a bridging ligand giving rise to an octahedral arrangement around each copper center. The presence of chloride bridges between the adjacent molecules results in a ‘ladder-like’ polymeric structure. The bond distances for Cu1–N1 and Cu1–S1 are 2.075(18) and 2.321(6) Å respectively. Cu–Cl lengths are observed at 2.255(6) Å (Cu1–Cl1 terminal bond), 2.318(5) Å (Cu1–Cl2 in the basal bond), 2.690(5) Å (Cu1–Cl2 bridging bond) and 2.932(5) Å (Cu1–Cl2 bridging bond). The Cu–Cu distance of 3.532 Å is normal for distorted octahedral structures. The bond angles for the basal ligands trans to each other are 176.82° and 163.90° for N1–Cu1–Cl1 and S1–Cu1–Cl2 respectively.

The data was collected at -73°. Numerical absorption corrections were done. All non-hydrogen atoms were refined anisotropically. The positions and temperature factors of the hydrogen atoms bonded to the N1, the amine nitrogen coordinated to the copper, were refined independently. The positions of all other hydrogen atoms were fixed by the positions of the atoms to which these were bonded but the isotropic temperature parameters were refined independently.

R1 = 0.0262 for 2366 Fo > 4sig(Fo) and 0.0354 for all 2798 data, wR2 = 0.0601, GooF = S = 1.080, Electron density synthesis with coefficients Fo-Fc, Highest peak 0.38 at 0.2249 0.3582 0.2013 [0.74 A from C6], Deepest hole -0.34 at 0.3433 0.4676 0.9741 [0.54 A from Cu1].

  1. Supplementary Material