A $\pi$- $\pi$* transition in hexa-1,3,5-triene, C₆H₈, corresponds to a separation between energy levels of 4.84 eV. Predict the wavelength of the corresponding maximum absorbance in the UV-visible spectrum of hexatriene.

Question

Quizplus · Accepted Answer

To find the wavelength ($\lambda$) corresponding to the energy difference ($\Delta E$) of 4.84 eV, we use the equation $\Delta E = \frac{hc}{\lambda}$, where $h$ is Planck's constant (4.135667696 x 10^-15 eV·s) and $c$ is the speed of light (3.00 x 10^8 m/s). Rearranging for $\lambda$, we get $\lambda = \frac{hc}{\Delta E}$. Substituting the given values, $\lambda \approx 256$ nm.

A π\piπ - π\piπ * Transition in Hexa-1,3,5-Triene, C6H8, Corresponds to a Separation Between

A $\pi$ - $\pi$ * Transition in Hexa-1,3,5-Triene, C₆H₈, Corresponds to a Separation Between