EXAFS structural determination of the Pt2(P2O 5H2)44- anion in solution

Renske M. Van Der Veen; Christopher J. Milne; Van Thai Pham; Amal El Nahhas; Julia A. Weinstein; Jonathan Best; Camelia N. Borca; Christian Bressler; Majed Chergui

doi:10.2533/chimia.2008.287

EXAFS structural determination of the Pt₂(P₂O ₅H₂)₄^4- anion in solution

Renske M. Van Der Veen, Christopher J. Milne, Van Thai Pham, Amal El Nahhas, Julia A. Weinstein, Jonathan Best, Camelia N. Borca, Christian Bressler, Majed Chergui

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

Abstract

We present the first structural determination of the Pt₂(P ₂O₅H₂)₄^4- anion in solution by analyzing the extended X-ray absorption fine structure (EXAFS) spectrum of the Pt L_III edge. The data could be fit with a simple model involving single and multiple scattering paths to near and far P-atoms, bridging O-atoms, and the other Pt-atom in the binuclear complex. A Pt-Pt distance of 2.876(28) Å and a Pt-P bond length of 2.32(4) Å are obtained. These values are in line with distances found in previous X-ray diffraction studies. The assignment of the EXAFS spectrum of the Pt ₂(P₂O₅H₂)₄^4- anion in its ground state is required for future time-resolved X-ray absorption measurements with the goal of determining the structure and dynamics of the complex in the ^1,3A_2u excited states.

Original language	English (US)
Pages (from-to)	287-290
Number of pages	4
Journal	Chimia
Volume	62
Issue number	4
DOIs	https://doi.org/10.2533/chimia.2008.287
State	Published - 2008
Externally published	Yes

Keywords

Diplatinum complexes
EXAFS
Molecular structures

ASJC Scopus subject areas

General Chemistry

Online availability

10.2533/chimia.2008.287

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Cite this

@article{eed0fb5d198f423aa384a07bfa85b4f0,

title = "EXAFS structural determination of the Pt2(P2O 5H2)44- anion in solution",

abstract = "We present the first structural determination of the Pt2(P 2O5H2)44- anion in solution by analyzing the extended X-ray absorption fine structure (EXAFS) spectrum of the Pt LIII edge. The data could be fit with a simple model involving single and multiple scattering paths to near and far P-atoms, bridging O-atoms, and the other Pt-atom in the binuclear complex. A Pt-Pt distance of 2.876(28) {\AA} and a Pt-P bond length of 2.32(4) {\AA} are obtained. These values are in line with distances found in previous X-ray diffraction studies. The assignment of the EXAFS spectrum of the Pt 2(P2O5H2)44- anion in its ground state is required for future time-resolved X-ray absorption measurements with the goal of determining the structure and dynamics of the complex in the 1,3A2u excited states.",

keywords = "Diplatinum complexes, EXAFS, Molecular structures",

author = "{Van Der Veen}, {Renske M.} and Milne, {Christopher J.} and Pham, {Van Thai} and {El Nahhas}, Amal and Weinstein, {Julia A.} and Jonathan Best and Borca, {Camelia N.} and Christian Bressler and Majed Chergui",

year = "2008",

doi = "10.2533/chimia.2008.287",

language = "English (US)",

volume = "62",

pages = "287--290",

journal = "Chimia",

issn = "0009-4293",

publisher = "Swiss Chemical Society",

number = "4",

}

TY - JOUR

T1 - EXAFS structural determination of the Pt2(P2O 5H2)44- anion in solution

AU - Van Der Veen, Renske M.

AU - Milne, Christopher J.

AU - Pham, Van Thai

AU - El Nahhas, Amal

AU - Weinstein, Julia A.

AU - Best, Jonathan

AU - Borca, Camelia N.

AU - Bressler, Christian

AU - Chergui, Majed

PY - 2008

Y1 - 2008

N2 - We present the first structural determination of the Pt2(P 2O5H2)44- anion in solution by analyzing the extended X-ray absorption fine structure (EXAFS) spectrum of the Pt LIII edge. The data could be fit with a simple model involving single and multiple scattering paths to near and far P-atoms, bridging O-atoms, and the other Pt-atom in the binuclear complex. A Pt-Pt distance of 2.876(28) Å and a Pt-P bond length of 2.32(4) Å are obtained. These values are in line with distances found in previous X-ray diffraction studies. The assignment of the EXAFS spectrum of the Pt 2(P2O5H2)44- anion in its ground state is required for future time-resolved X-ray absorption measurements with the goal of determining the structure and dynamics of the complex in the 1,3A2u excited states.

AB - We present the first structural determination of the Pt2(P 2O5H2)44- anion in solution by analyzing the extended X-ray absorption fine structure (EXAFS) spectrum of the Pt LIII edge. The data could be fit with a simple model involving single and multiple scattering paths to near and far P-atoms, bridging O-atoms, and the other Pt-atom in the binuclear complex. A Pt-Pt distance of 2.876(28) Å and a Pt-P bond length of 2.32(4) Å are obtained. These values are in line with distances found in previous X-ray diffraction studies. The assignment of the EXAFS spectrum of the Pt 2(P2O5H2)44- anion in its ground state is required for future time-resolved X-ray absorption measurements with the goal of determining the structure and dynamics of the complex in the 1,3A2u excited states.

KW - Diplatinum complexes

KW - EXAFS

KW - Molecular structures

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