Metal Directed Assembly of Terpyridine-Functionalized Gold Nanoparticles

Terpyridine capped gold nanoparticles (ca. 2.0 nm diameter) form large aggregates in the presence of metal ions [Fe(II), Zn(II), Cu(I), Ag(I)]. The assembly process is a result of metal coordination between two terpyridines that are attached to separate nanoparticles. The stability of the aggregates...

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Bibliographic Details
Published inNano letters Vol. 2; no. 12; pp. 1345 - 1348
Main Authors Norsten, Tyler B, Frankamp, Benjamin L, Rotello, Vincent M
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 01.12.2002
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Multidisciplinary
Chemistry, Physical
Materials Science
Materials Science, Multidisciplinary
Nanoscience & Nanotechnology
Physical Sciences
Physics
Physics, Applied
Physics, Condensed Matter
Science & Technology
Science & Technology - Other Topics
Technology
SELF-ORGANIZATION
RUTHENIUM(II)
BEHAVIOR
MONOLAYERS
COMPLEXES
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Summary:Terpyridine capped gold nanoparticles (ca. 2.0 nm diameter) form large aggregates in the presence of metal ions [Fe(II), Zn(II), Cu(I), Ag(I)]. The assembly process is a result of metal coordination between two terpyridines that are attached to separate nanoparticles. The stability of the aggregates in various solvents and in the presence of excess terpyridine can be controlled through choice of bridging metal. Small angle X-ray scattering experiments indicate regular interparticle distances that increase as the length of the supporting monolayer is extended.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl020217m