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Extended X-ray Absorption Fine Structure of Copper(II) Complexes at the Air-Water Interface by a Polarized Total-Reflection X-ray Absorption Technique
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- NAGATANI Hirohisa
- Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
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- TANIDA Hajime
- Materials Science Division, Japan Synchrotron Radiation Research Institute
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- WATANABE Iwao
- SR Center, Ritsumeikan University
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- SAGARA Takamasa
- Department of Applied Chemistry, Faculty of Engineering, Nagasaki University
Bibliographic Information
- Other Title
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- Extended X-ray absorption fine structure of copper(2) complexes at the air-water interface by a polarized total-reflection X-ray absorption technique
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Description
Copper(II) complexes spread on an aqueous solution surface were studied by a polarized total-reflection X-ray absorption fine structure (TR-XAFS) technique. The polarized TR-XAFS spectra at the Cu-K edge for copper(II) porphyrins and copper(II) chlorophyllin in a monolayer were measured in situ at the air-water interface. The polarization dependences of X-ray absorption near-edge structure (XANES) involving a 1s→4pz transition allowed us to estimate the molecular orientation and the local coordination structure around the copper(II) atom in the polarization plane selectively. The extended X-ray absorption fine structure (EXAFS) region of the polarized TR-XAFS spectra for the metal complexes present at the air-water interface was successfully analyzed for the first time. The relative coordination number for the copper center evaluated from the EXAFS analysis indicated larger values in the vertical polarization than in the horizontal one, in agreement with the standing-up molecular orientation at the air-water interface estimated from the XANES region.
Journal
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- Analytical Sciences
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Analytical Sciences 25 (4), 475-480, 2009
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390282679232746752
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- NII Article ID
- 10025211469
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- NII Book ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- HANDLE
- 10069/21622
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- NDL BIB ID
- 10201482
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- PubMed
- 19359785
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- Web Site
- https://nagasaki-u.repo.nii.ac.jp/records/17754
- http://id.ndl.go.jp/bib/10201482
- https://ndlsearch.ndl.go.jp/books/R000000004-I10201482
- https://link.springer.com/content/pdf/10.2116/analsci.25.475.pdf
- https://link.springer.com/article/10.2116/analsci.25.475/fulltext.html
- http://www.jstage.jst.go.jp/article/analsci/25/4/25_4_475/_pdf
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- IRDB
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed