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http:// pling o C University of is, Ch Ed Help signment O /23/2015 11:30 PM A 14.3/100 Gradebook Attempts Score Pr Calculator dic Tab 5 of 7 Map 00 Ruthenium (II) complexes, such as tris (2,2'-bipyridine)ruthenium chloride (bpy)3Rur 2CIT), are often used in dissolved oxygen sensors because their luminescence is quenched by O2. Explain how the luminescence of (bpy) Ru? s quenched by O2 by placing the following steps in order step Ru(II) is in the singlet ground state Ru(II) absorbs radiation, promoting t to the excited singlet state The Ru(II) excited triplet state undergoes a radiationless transition to the ground state singlet. The Ru(ll) xcited singlet state relaxes to the luminescent excited triplet state Energy is transferred to O2 through collisions with the excited Ru(II) Last step Tris (2,2-bipyridine)ruthenium(ll) chloride Copyright 20 2015 Sapling Le cy policy N O M Resources O Assignment Information Available From: 5/2015 01:30 AM 11/23/2015 11:30 PM Due Date: Points Possible: 000 Grade Category: Default Policies: F2014. You can check your answers he d n keep trying to answer each question u you get it right or give up 5% of the points ble t in your question for each incorrect attempt at that Textbook O Help With This Topic Web Help & Videos O Technical Support and Bug Reports ntact 59 PM /22/2015Explanation / Answer
First step - Ru(ll) is in the singlet ground state.
Second step - Ru(ll) absorbs radiation, promoting it to the excited singlet state.
Third step - The Ru(ll) excited singlet state relaxes to the luminescent excited triplet state
Fourth step- Energy is transferred to O2 through collisions with the excited Ru(ll)
Last step- The Ru(ll) excited triplet state undergoes a radiationless transition to the ground state singlet.
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