Lap Report 1

Lap Report 1 - Kinetics of the Triplet State of a Pd...

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Kinetics of the Triplet State of a Pd Porphyrin Introduction Phosphorescence is the spontaneous emission that may persist for long periods of time. In a fluorescence procedure, the initial absorption takes the molecule of choice to an excited electronic state. The molecule is then subject to collisions with surrounding molecules. It involves storage of energy in a reservoir from which it slowly leaks. As it gives up energy nonradiatively, it steps down the ladder of vibrational levels to the lowest vibrational level of the electronically excited molecular state. In phosphorescence, the triplet and singlet excited states share a common geometry at the point where their potential energy curves intersect. this allows intersystem crossing to occur. The Pd complex of meso-tetra(N-
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methyl-4-pyridyl) porphine tetrachloride (PdTMPyp) can be excited by visible radiation to its excited triplet state.
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Lap Report 1 - Kinetics of the Triplet State of a Pd...

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