Table of Contents
Journal of Crystallography
Volume 2014, Article ID 168320, 5 pages
Research Article

Synthesis and Structural Study of the (N,N,N′,N′-Tetraethylethylenediamine)CdFe(CO)4 Dimer

Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT 84112-0850, USA

Received 30 December 2013; Accepted 11 March 2014; Published 7 April 2014

Academic Editor: Dong Qiu

Copyright © 2014 Torsten Kolb 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.


The new [(teeda)CdFe(CO)4]2 complex has been isolated from the reaction of with tetraethylethylenediamine. Unlike previous structural reports of ligand adducts of complexes, which have all been trimeric species composed of six-membered Cd3Fe3 rings, the teeda complex crystallized as a dimer, analogous to [(2,2-bpy)ZnFe(CO)4]2. As in the zinc dimer, significant distortion arises from steric interactions between the axial carbonyl ligands on opposing iron centers. The complex sits on an inversion center, leading to two independent Cd–Fe distances, 2.7244(6) and 2.7433(6) Å, and crystallizes in the monoclinic space group P21/a with a = 14.8546(2) Å, b = 15.1647(3) Å, c = 15.5252(3) Å, β = 90.9517 , and = 1.719 g/cm3 at 150(1) K.