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Topic: How does molar absorption coefficient vary with the chain length?  (Read 2678 times)

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Offline zs3889

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So I am doing this pchem homework and come across this question, its an undergrad pchem course (quantum mechanics):

Consider a conjugated chain of 2n C-atoms. We treat the pi orbitals with the one dimensional particle in a box model. The box length is L=(2n+1)R where R is the average linear C-C distance. For 2n carbon atoms, a polyene chain has n doubly occupied pi orbitals.

the first sub question is to calculate the oscillator strength for the HOMO-LUMO transition n to n+1, i am currently working on this.

but for the molar coefficient i really have no idea how to related it to the chain length  ???

(How does molar absorption coefficient vary with the chain length?)

thanks guys
« Last Edit: April 18, 2012, 09:34:40 PM by zs3889 »

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