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231222s2001 xx ||||| 00| ||eng c |
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|e rakwb
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|a eng
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|a Tao, Y
|e verfasserin
|4 aut
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|a Determination of double decker sandwich structured La-substituted chlorophyll a by EXAFS
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|c 2001
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 06.09.2001
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|a Date Revised 05.06.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a As a representative natural porphyrin derivative, it is interesting to know the chemical form of lanthanide in chlorophyll a. We select the natural fern dicranopteris dichotoma, the most lanthanide-concentrated plant known, to isolate the chlorophyll a for our study. It is found by EXAFS that lanthanum substitutes in the magnesium position in chlorophyll and coordinates with the porphyrin ring. The lanthanum is seen to have a similar coordination structure to a sandwich-type lanthanide complex, with the La surrounded by eight nitrogen atoms from two porphyrin rings with average La-N bond length of 2.65 A
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Lanthanum
|2 NLM
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|a 6I3K30563S
|2 NLM
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|a Magnesium
|2 NLM
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|a I38ZP9992A
|2 NLM
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|a Chlorophyll A
|2 NLM
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|a YF5Q9EJC8Y
|2 NLM
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|a Zhao, G
|e verfasserin
|4 aut
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|a Yang, J
|e verfasserin
|4 aut
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|a Ikeda, S
|e verfasserin
|4 aut
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|a Jiang, J
|e verfasserin
|4 aut
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|a Hu, T
|e verfasserin
|4 aut
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|a Chen, W
|e verfasserin
|4 aut
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|a Wei, Z
|e verfasserin
|4 aut
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|a Hong, F
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1999
|g 8(2001), Pt 2 vom: 01. März, Seite 996-7
|w (DE-627)NLM09824129X
|x 0909-0495
|7 nnns
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|g volume:8
|g year:2001
|g number:Pt 2
|g day:01
|g month:03
|g pages:996-7
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|d 8
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|e Pt 2
|b 01
|c 03
|h 996-7
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