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Why would hexaaquamanganese(ii) present yellow despite having the transition metal ion
Accepted Answer
Hexaaquamanganese(II), [Mn(H2O)6]2+, typically appears pale pink rather than yellow. This is because the d-orbital splitting in Mn(II) is relatively small, leading to weak crystal field stabilization energy. As a result, the electronic transitions responsible for color absorption occur in the blue-violet region of the visible spectrum, resulting in the complementary pink color being reflected. The complex may appear slightly yellow in certain solutions due to factors like concentration or the presence of impurities.
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