Submitted on: 12 September 1998.
Revised on: 14 December 1998.
Accepted on: 23 January 1999.
___________________AUSTRALIAN JOURNAL OF CHEMISTRY
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Submitted on: 26 January 2015.
Revised on: 23 April 2015.
Accepted on: 05 May 2015.
___________________AUSTRALIAN JOURNAL OF CHEMISTRY
Submitted on: 18 January 2007.
Revised on: 12 February 2007.
Accepted on: 06 March 2007.
___________________AUSTRALIAN JOURNAL OF CHEMISTRY