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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la801366r
|2 doi
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|a pubmed24n0605.xml
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|a (DE-627)NLM181375753
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|a (NLM)18680322
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Mishra, Padmaja P
|e verfasserin
|4 aut
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|a Self-assembly of Yttrium-containing lacunary polyoxotungstate macroanions in solution with controllable supramolecular structure size by pH or solvent content
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 13.11.2008
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The self-assembly and the formation of "Blackberry" type supramolecular structures for a type of Yttrium-containing polyoxometalate (K 15Na 6(H 3O) 9[(PY 2W 10O 38) 4(W 3O 14)].9H 2O, or {P 4Y 8W 43}) macroanions is characterized by using static and dynamic light scattering techniques. {P 4Y 8W 43} macroions are found to form hollow, spherical, single-layer "blackberry" structures in water and water-acetone mixed solvents. Very interestingly, the blackberry size can be accurately controlled by either changing acetone content in water-acetone mixed solvents, or by changing solution pH in aqueous solution. The blackberry size increases with decreasing pH (lower charge density) or higher acetone content in the mixed solvent (lower dielectric constant) and the blackberry size can change in responding to the change of external conditions. This indicates that the {P 4Y 8W 43} macroanions possess the properties of both "strong electrolyte type" and "weak electrolyte type" macroions, as we outlined previously. This is due to the special chemical feature of such clusters, which can be treated as Na 2HPO 4-type electrolytes in solution. The kinetics of the blackberry formation can be controlled by temperature
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Anions
|2 NLM
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|a Pharmaceutical Solutions
|2 NLM
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|a Silicon Compounds
|2 NLM
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|a Solvents
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|a Tungsten Compounds
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Yttrium
|2 NLM
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| 650 |
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|a 58784XQC3Y
|2 NLM
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| 700 |
1 |
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|a Jing, Jing
|e verfasserin
|4 aut
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1 |
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|a Francesconi, Lynn C
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Tianbo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 17 vom: 02. Sept., Seite 9308-13
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:24
|g year:2008
|g number:17
|g day:02
|g month:09
|g pages:9308-13
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|u http://dx.doi.org/10.1021/la801366r
|3 Volltext
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