Official websites use .gov
A
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government organization in the United States.
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A lock (
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connected to the .gov website. Share sensitive
information only on official, secure websites.
Disorder in 2 (left) and 4 (right). Darkness indicates overlap between two possible structures, black meaning complete overlap. Hydrogen atoms omitted for clarity. Thermal ellipsoids at 50% probability. Occupancy ratios: 2—0.659/0.341, 4—0.777/0.223.
