
TY  - JOUR
A1  - Gatehouse, BM 
A1  - Mclachlan, G 
A1  - Martin, LL 
A1  - Martin, RL 
A1  - Spiccia, L 
T1  - Crystal and Molecular Structure of the Peroxo-Bridged Dimer [(trenen)CoO<sub>2</sub>Co(trenen)] (ClO<sub>4</sub>)<sub>4</sub> Where trenen = N,N,N'-Tris(2-aminoethyl)-ethane-1,2-diamine
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1991
VL  - 44
IS  - 3
SP  - 351
EP  - 359
KW  - 
UR  - https://doi.org/10.1071/CH9910351 
N2  - The preparation and crystal structure of the brown crystalline cobalt(III) dimer [( trenen )CoO2-Co( trenen )](ClO4)4 is described where the pentadentate ligand trenen is N,N,N&#8242;- tris (2-aminoethyl)ethane-1,2-diamine. The compound forms monoclinic crystals with a 13.132, b 14.214, c 8.906&#506; and &#946; 91.53&#176;, and two formula units in the unit cell, in space group P21/n. The nitrogen atoms of the trenen ligand occupy five of the six slightly distorted octahedral sites about each cobalt atom with a peroxo bridge linking the two Co( trenen ) moieties through the sixth site. The Co-O-O-Co dihedral angle is 180&#176;, the molecule possesses a centre of symmetry, and the peroxo bridging group is situated trans to the secondary nitrogen atom attached to each cobalt atom (the s,s -isomer). The electronic spectrum displays a strong (&#1108; 13700 dm3 mol-1 cm-1) absorption band at 302 nm which is typical of peroxo -bridged dicobalt complexes with a single transplanar CoO2Co bridge. 
ER  -

