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Doubly Charged Silver Clusters Stabilized by Tryptophan: Ag 4 2+ as an Optical Marker for Monitoring Particle Growth
Author(s) -
Kulesza Alexander,
Mitrić Roland,
BonačićKoutecký Vlasta,
Bellina Bruno,
Compag Isabelle,
Broyer Michel,
Antoine Rodolphe,
Dugourd Philippe
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201005419
Subject(s) - tryptophan , cluster (spacecraft) , molecule , particle (ecology) , nanoparticle , chemistry , fingerprint (computing) , particle size , metal , nanotechnology , chemical physics , materials science , organic chemistry , amino acid , biology , computer science , biochemistry , programming language , ecology , computer security
The effect of the environment on doubly charged metallic subunits has been investigated in the gas phase through a combined experimental and theoretical study. The hybrid system consisting of an Ag 4 2+ cluster and a tryptophan molecule exhibits an unambiguous optical fingerprint, which can be useful to gain mechanistic insights into the aggregation and growth of nanoparticles (see figure; blue N, gray Ag, green C, red O, turquoise H).