
%0 Journal Article
%A Chen, XM 
%A Yao, YX 
%A Shi, KL 
%A Mak, TCW 
%T Two Metal Complexes of the Macrocyclic Ligand 1,4,7-Triazacyclodecane (tacd). Crystal Structures of [Zn(tacd)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub> and [Cu(tacd)<sub>2</sub>]Br<sub>2</sub>.4H<sub>2</sub>O
%J Australian Journal of Chemistry
%D 1995/01/01
%V 48
%N 1
%P 139-144
%K 
%R https://doi.org/10.1071/CH9950139
%U https://www.publish.csiro.au/paper/CH9950139 
%X Two metal complexes of 1,4,7-triazacyclodecane ( tacd ), [Zn( tacd )2] (ClO4)2 (1) and [Cu( tacd )2] Br2.4H2O (2), have been prepared and characterized by X-ray crystallography. Crystals of (1) are monoclinic, P21/n, a 9.506(2), b 10.279(3), c 11.505(2) &#506;, &#946; 91.29(2)&#176;; crystals of (2) are orthorhombic, Pbca, a 12.035(3), b 13.673(3), c 14.248(2) &#506;. The zinc(II) atom in (1) is surrounded in a distorted octahedral N6 environment with Zn-N bonds at 2.121(5)-2.131(4) &#506;; the copper(II) atom in (2) adopts an elongated octahedral coordination geometry with the Cu-N bonds at 2.066(4)-2.294(5) &#506;. 
