
TY  - JOUR
A1  - Wong, Pong Nai (Bonnie) 
A1  - Davies, Murray S. 
A1  - Hambley, Trevor W. 
T1  - Oxidation of [Pt<emph type="7">II</emph>Cl<emph type="8">2</emph>(ethane-1,2-diamine-<emph type="2">N</emph>,<emph type="2">N'</emph>-dicarboxylic Acid)] and Ligand Ring Closure in the Platinum(IV) Oxidation State
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2001
VL  - 54
IS  - 5
SP  - 303
EP  - 306
KW  - 
UR  - https://doi.org/10.1071/CH01081 
N2  - Oxidation of the dichloroplatinum(II) complex of the potentially tetradentate ligand ethane-1,2-diamine-N,N&acute;-diacetic acid (H2enda) gives rise to a variety of products. A number of these species have been crystallographically characterized. &#91;PtIVCl2(enda)&#93; as the hemihydrate crystallizes in the monoclinic space group P21/a, with a 11.238(1), b 15.665(2), c 13.737(2) &#197;, &#946; 109.44(1)&#x02DA;, and was refined to an R value of 0.030 on 3015F. &#91;PtIVCl2(enda)&#93; as the monohydrate crystallizes in the orthorhombic space group Pna21, with a 6.984(2), b 9.000(3), c 18.431(3) &#197;, and was refined to an R value of 0.025 on 992F. &#91;PtIVCl3(Henda)&#93;&#183;H2O crystallizes in the orthorhombic space group Pbca, with a 11.741(1), b 12.851(2), c 17.133(2) &#197;, and was refined to an R value of 0.029 on 2015F. The major product is the ring-closed complex &#91;PtIVCl2(enda)&#93; and if the solution is heated under reflux for 24 h, this is the only product. In contrast, reaction of cis,trans-&#91;PtIVCl2(OH)2(ethane-1,2-diamine)&#93; with excess acetic acid was shown not to lead to displacement of the hydroxo ligands. 
ER  -

