TY - JOUR
T1 - A ladder polysilane as a template for folding palladium nanosheets
AU - Sunada, Yusuke
AU - Haige, Ryohei
AU - Otsuka, Kyohei
AU - Kyushin, Soichiro
AU - Nagashima, Hideo
N1 - Funding Information:
This work was supported by the Core Research Evolutional Science and Technology (CREST) Program of Japan Science and Technology Agency (JST) Japan, and this work was performed under the Cooperative Research Program of ‘Network Joint Research Center for Materials and Devices’.
PY - 2013
Y1 - 2013
N2 - Although discrete nano-sized compounds consisting of a monolayer sheet of multiple atoms have attracted much attention, monolayer transition metal nanosheets are difficult to access. Here we report a template synthesis of the folding metal nanosheet (2) consisting of 11 palladium atoms by treatment of a ladder polysilane, decaisopropylbicyclo[2.2.0]hexasilane (1), with Pd(CN t Bu) 2. Crystallographic analysis reveals that the compound is composed of two monolayer Pd 7 sheets sharing three palladium atoms at the junction. Each Pd atom is stabilized by Pd-Si σ-bonds, Pd-Pd bonds and coordination of isocyanides. Ligand exchange of 2 from CN t Bu to CN(2,4,6-Me 3 -C 6 H 2) is accompanied by structural rearrangement, leading to the formation of another folding Pd 11 nanosheet (3) consisting of two edge-sharing Pd 7 sheets. The shapes of the Pd 7 sheets as well as the dihedral angle between the two Pd 7 sheets are dependent on the substituent of the isocyanide ligand.
AB - Although discrete nano-sized compounds consisting of a monolayer sheet of multiple atoms have attracted much attention, monolayer transition metal nanosheets are difficult to access. Here we report a template synthesis of the folding metal nanosheet (2) consisting of 11 palladium atoms by treatment of a ladder polysilane, decaisopropylbicyclo[2.2.0]hexasilane (1), with Pd(CN t Bu) 2. Crystallographic analysis reveals that the compound is composed of two monolayer Pd 7 sheets sharing three palladium atoms at the junction. Each Pd atom is stabilized by Pd-Si σ-bonds, Pd-Pd bonds and coordination of isocyanides. Ligand exchange of 2 from CN t Bu to CN(2,4,6-Me 3 -C 6 H 2) is accompanied by structural rearrangement, leading to the formation of another folding Pd 11 nanosheet (3) consisting of two edge-sharing Pd 7 sheets. The shapes of the Pd 7 sheets as well as the dihedral angle between the two Pd 7 sheets are dependent on the substituent of the isocyanide ligand.
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U2 - 10.1038/ncomms3014
DO - 10.1038/ncomms3014
M3 - Article
C2 - 23764831
AN - SCOPUS:84879654929
SN - 2041-1723
VL - 4
JO - Nature Communications
JF - Nature Communications
M1 - 2014
ER -