Complex sentence: Linus Pauling won the 1954 Chemistry Prize for his research into the chemical bond and its application to the structure of complex substances; he also won the 1962 Peace Prize for his anti-nuclear activism; making him the only laureate of two unshared prizes.
Split into simpler sentences: Linus Pauling won the 1954 Chemistry Prize for his research into the chemical bond and its application to the structure of complex substances. Pauling also won the Peace Prize in 1962 for his anti-nuclear activism, making him the only laureate of two unshared prizes.