The structure of photoexcited platinum pop measured with microsecond resolved xafs

Pëteris Līviņš; Daniel Thiel; Edward Stern; Aaron Lewis

doi:10.7567/JJAPS.32S2.195

The structure of photoexcited platinum pop measured with microsecond resolved xafs

Pëteris Līviņš, Daniel Thiel, Edward Stern, Aaron Lewis

Research output: Contribution to journal › Article › peer-review

Abstract

We report a sec resolved XAFS measurement of the excited triplet electronic state 3A2U(da*p(r) of Pt2(P2C>5H2)4~ in solution employing a new technique. The measurement utilizes a vertical flow of 10 m/s produced by a small nozzle, similiar to that of a dye laser. A line focused laser excites the molecules in the flow while a 10 fim vertically confined line of x-ray radiation probes the flow downstream of the laser. We find that the phosphor planes of the molecule in the excited state each move inward along the Pt-Pt axis by 0.26(08) A, relative to its the center. Also, the platinum phosphorous bonds contract 0.050(11) A. The optical transition promotes an electron from an anti-bonding orbital to a bonding orbital, and the observations indicate that this occupied bonding orbital strongly increases the overall structural bonding forces of the molecule.

Original language	English
Pages (from-to)	195-197
Number of pages	3
Journal	Japanese Journal of Applied Physics
Volume	32
DOIs	https://doi.org/10.7567/JJAPS.32S2.195
State	Published - Jan 1993
Externally published	Yes

Keywords

Kinetic flow method
Platinum pop
Time resolved xafs

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10.7567/JJAPS.32S2.195

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title = "The structure of photoexcited platinum pop measured with microsecond resolved xafs",

abstract = "We report a sec resolved XAFS measurement of the excited triplet electronic state 3A2U(da*p(r) of Pt2(P2C>5H2)4~ in solution employing a new technique. The measurement utilizes a vertical flow of 10 m/s produced by a small nozzle, similiar to that of a dye laser. A line focused laser excites the molecules in the flow while a 10 fim vertically confined line of x-ray radiation probes the flow downstream of the laser. We find that the phosphor planes of the molecule in the excited state each move inward along the Pt-Pt axis by 0.26(08) A, relative to its the center. Also, the platinum phosphorous bonds contract 0.050(11) A. The optical transition promotes an electron from an anti-bonding orbital to a bonding orbital, and the observations indicate that this occupied bonding orbital strongly increases the overall structural bonding forces of the molecule.",

keywords = "Kinetic flow method, Platinum pop, Time resolved xafs",

author = "P{\"e}teris Līviņ{\v s} and Daniel Thiel and Edward Stern and Aaron Lewis",

year = "1993",

month = jan,

doi = "10.7567/JJAPS.32S2.195",

language = "אנגלית",

volume = "32",

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journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

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T1 - The structure of photoexcited platinum pop measured with microsecond resolved xafs

AU - Līviņš, Pëteris

AU - Thiel, Daniel

AU - Stern, Edward

AU - Lewis, Aaron

PY - 1993/1

Y1 - 1993/1

N2 - We report a sec resolved XAFS measurement of the excited triplet electronic state 3A2U(da*p(r) of Pt2(P2C>5H2)4~ in solution employing a new technique. The measurement utilizes a vertical flow of 10 m/s produced by a small nozzle, similiar to that of a dye laser. A line focused laser excites the molecules in the flow while a 10 fim vertically confined line of x-ray radiation probes the flow downstream of the laser. We find that the phosphor planes of the molecule in the excited state each move inward along the Pt-Pt axis by 0.26(08) A, relative to its the center. Also, the platinum phosphorous bonds contract 0.050(11) A. The optical transition promotes an electron from an anti-bonding orbital to a bonding orbital, and the observations indicate that this occupied bonding orbital strongly increases the overall structural bonding forces of the molecule.

AB - We report a sec resolved XAFS measurement of the excited triplet electronic state 3A2U(da*p(r) of Pt2(P2C>5H2)4~ in solution employing a new technique. The measurement utilizes a vertical flow of 10 m/s produced by a small nozzle, similiar to that of a dye laser. A line focused laser excites the molecules in the flow while a 10 fim vertically confined line of x-ray radiation probes the flow downstream of the laser. We find that the phosphor planes of the molecule in the excited state each move inward along the Pt-Pt axis by 0.26(08) A, relative to its the center. Also, the platinum phosphorous bonds contract 0.050(11) A. The optical transition promotes an electron from an anti-bonding orbital to a bonding orbital, and the observations indicate that this occupied bonding orbital strongly increases the overall structural bonding forces of the molecule.

KW - Kinetic flow method

KW - Platinum pop

KW - Time resolved xafs

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

ER -

The structure of photoexcited platinum pop measured with microsecond resolved xafs

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Keywords

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