Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

2. Answer ALL parts. (a) Draw a Jablonski diagram for formaldehyde, indicating the photophysical processes that can take place and the molecular orbital involved in

image text in transcribed

2. Answer ALL parts. (a) Draw a Jablonski diagram for formaldehyde, indicating the photophysical processes that can take place and the molecular orbital involved in the transitions. Explain each process shown. [12 marks] (b) Explain with the aid of a suitable diagram why for an organic molecule the triplet state of a specific orbital configuration has a lower energy than the corresponding singlet state. [16 marks ] (c) Calculate the molar absorptivity coefficient of fluorescein given, a concentration of 4.2 X106M, a path length of 0.001 meters and an absorbance of 0.39 at 482nm. Hence estimate the quantum yield of fluorescence after excitation at this wavelength, given the initial intensity of the light (I0) was seen to be 10 times that of the subsequent fluorescence intensity (FI)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Organic Chemistry

Authors: John McMurry

7 Edition

978-0495112587, 0495112585

More Books

Students also viewed these Chemistry questions