TY - JOUR
T1 - Dynamic hetero-metallic bondings visualized by sequential atom imaging
AU - Inazu, Minori
AU - Akada, Yuji
AU - Imaoka, Takane
AU - Hayashi, Yoko
AU - Takashima, Chinami
AU - Nakai, Hiromi
AU - Yamamoto, Kimihisa
N1 - Funding Information:
This study was supported in part by JST ERATO Grant Number JPMJER1503, Japan (K.Y.), JSPS KAKENHI Grant Nos. JP 15H05757, 21H05023 (K.Y.), and JP 19H02535 (T.I.) and the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”. We thank Ms. M. Morita (Tokyo Institute of Technology) for assistance with the high-resolution STEM observations.
Funding Information:
This study was supported in part by JST ERATO Grant Number JPMJER1503, Japan (K.Y.), JSPS KAKENHI Grant Nos. JP 15H05757, 21H05023 (K.Y.), and JP 19H02535 (T.I.) and the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”. We thank Ms. M. Morita (Tokyo Institute of Technology) for assistance with the high-resolution STEM observations.
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - Traditionally, chemistry has been developed to obtain thermodynamically stable and isolable compounds such as molecules and solids by chemical reactions. However, recent developments in computational chemistry have placed increased importance on studying the dynamic assembly and disassembly of atoms and molecules formed in situ. This study directly visualizes the formation and dissociation dynamics of labile dimers and trimers at atomic resolution with elemental identification. The video recordings of many homo- and hetero-metallic dimers are carried out by combining scanning transmission electron microscopy (STEM) with elemental identification based on the Z-contrast principle. Even short-lived molecules with low probability of existence such as AuAg, AgCu, and AuAgCu are directly visualized as a result of identifying moving atoms at low electron doses.
AB - Traditionally, chemistry has been developed to obtain thermodynamically stable and isolable compounds such as molecules and solids by chemical reactions. However, recent developments in computational chemistry have placed increased importance on studying the dynamic assembly and disassembly of atoms and molecules formed in situ. This study directly visualizes the formation and dissociation dynamics of labile dimers and trimers at atomic resolution with elemental identification. The video recordings of many homo- and hetero-metallic dimers are carried out by combining scanning transmission electron microscopy (STEM) with elemental identification based on the Z-contrast principle. Even short-lived molecules with low probability of existence such as AuAg, AgCu, and AuAgCu are directly visualized as a result of identifying moving atoms at low electron doses.
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U2 - 10.1038/s41467-022-30533-y
DO - 10.1038/s41467-022-30533-y
M3 - Article
C2 - 35624108
AN - SCOPUS:85130702710
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 2968
ER -