Exception
In 2004, researchers reported the synthesis of 5-dehydro-m-xylylene (DMX), the first organic molecule known to violate Hund's rule.
Read more about this topic: Hund's Rule Of Maximum Multiplicity
Famous quotes containing the word exception:
“There are those who would build the Temple,
And those who prefer that the Temple should not be built.
In the days of Nehemiah the Prophet
There was no exception to the general rule.”
—T.S. (Thomas Stearns)
“It has no share in the leadership of thought: it does not even reflect its current. It does not create beauty: it apes fashion. It does not produce personal skill: our actors and actresses, with the exception of a few persons with natural gifts and graces, mostly miscultivated or half-cultivated, are simply the middle-class section of the residuum.”
—George Bernard Shaw (1856–1950)
“The ways by which you may get money almost without exception lead downward. To have done anything by which you earned money merely is to have been truly idle or worse.”
—Henry David Thoreau (1817–1862)