The first relatively stable free radical, triphenylmethyl (structure I), was discovered by Moses Gomberg in 1900.
Certain structural features appear to be required for the existence of stable free radicals.
"Let us work together to build a prosperous, stable, free, democratic, harmonious and united Hong Kong," he said.
Europeans and Americans, whatever their past differences, have a common interest in a stable, free, democratic Iraq.
The idea was to convert Mr. Suharto's Indonesia, which had a partly capitalist economy plagued by corruption, into an open, competitive and stable free market economy.
"What happened in Syria made us all realise that the real 'bread' of the country, or the real basis of building a stable, free country, is people.
U.S.-China mutual trust declined after 1989 because of conflicting values over human rights; trust improved after 2001 because both sides valued a stable, free trade order.
It's fast, stable, free and not Vista.
HIE showed FRSA by donating the hydrogen atom or electron to stable free radical DPPH.
DPPH is a widely-used stable free radical to evaluate antioxidant activity of bioactive.
For all mass flow rates studied, a stable free surface is obtained.
