Issue Date: April 20, 2009
Main-Group Research Springs Ahead
YELLOW AND BLUE make green. That color combination, familiar to children coloring with crayons, was not what chemist Richard A. Kemp was thinking when he first saw yellow and green crystals of a pure gallium diimine complex. It took a little detective work, and a determined undergraduate student, but Kemp's group figured out that the normally yellow compound appears green in places where a tiny amount of a virtually undetectable blue dimer of . . .
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