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 two great rules in life, the one general and the other particular. The first is that every one can in the end get what he wants if he only tries. This is the general rule. The particular rule is that every individual is more or less of an exception to the general rule.”
—Samuel Butler (1835–1902)
“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)
“Trust men, and they will be true to you; treat them greatly, and they will show themselves great, though they make an exception in your favor to all their rules of trade.”
—Ralph Waldo Emerson (1803–1882)