
%0 Journal Article
%A Morgan, KR 
%A Gainsford, GJ 
%A Curtis, NF 
%T Complexes of cobalt(II), nickel(II) and copper(II) with a pentadentate Bis(&#946;-amino ketone); Crystal and molecular structure of Aqua(4,4,12,12-tetramethyl-5,8,11-triazapentadecane-2,14-dione)cobalt(II) perchlorate hydrate
%J Australian Journal of Chemistry
%D 1982/06/01
%V 35
%N 6
%P 1105-1117
%K 
%R https://doi.org/10.1071/CH9821105
%U https://www.publish.csiro.au/paper/CH9821105 
%X The diperchlorate salts of the mono(&#946;-amino ketone) 10-amino-4,4-dimethyl-5,8-diazadecan-2-one and of the bis(&#946;-amino ketone) 4,4,12,12-tetramethyl-5,8,11-triazapentadecane-2,14-dione, ttp, have been prepared by reaction of the diperchlorate of 3-azapentane-1,5-diamine with acetone. The salt [ttpH2] (ClO4)2 has been used to prepare the six-coordinate complexes [Cu(ttp)(H2O)] (ClO4)2,1.5H2O and [Ni(ttp)(H2O)] (ClO4)2,H2O, and the five-coordinate [Cu(ttp)] (CIO,),. The complex [Cu(ttp)] (ClO4), reacts with ammonia, methylamine and ethylamine to form complexes of pentadentate &#946;-amino ketone &#946;-amino imine ligands. The structure of [Co(ttp)(H2O)] (ClO4)2,1.5H2O has been determined by X-ray diffractometry [space group P21/c, Z 4, a 797.5(2), b 1632.8(3), c 2236.4(3) pm, &#946; 97.504(2)º, R 0.0749, Rw 0.0765 for 1678 reflections]. The complex cation has the bis(&#946;-amino ketone) ttp acting as a pentadentate ligand, with the three nitrogen and one carbonyl oxygen atoms coplanar, and with oxygen of a water molecule completing distorted octahedral coordination about the cobalt(II) ion. 
