10.1021/acs.cgd.6b00732.s001
Ting He
Ting
He
Huiqiong Wu
Huiqiong
Wu
Xiaojuan Wang
Xiaojuan
Wang
Qiguang Zang
Qiguang
Zang
Peng Xue
Peng
Xue
Rujuan Shen
Rujuan
Shen
Li Dang
Li
Dang
Yi Zhang
Yi
Zhang
Juan Xiang
Juan
Xiang
Shape-Controlled Synthesis of Organometallic Microcrystal-Based
Hollow Hexagonal Micromotors through Evaporation-Induced Supramolecular
Self-Assembly
American Chemical Society
2016
Organometallic Microcrystal-Based Hollow Hexagonal Micromotors
novel maneuverability
Evaporation-Induced Supramolecular Self-Assembly
microrod
microcrystal
intermolecule hydrogen bonds
microtube
evaporation-induced self-assembly
Shape-Controlled Synthesis
surface energies
catalyzing H 2 O 2
single-helix structure
O 2 bubbles
energy surfaces
H 2 O 2
Fc-Ala-BCB molecules
chemical activity
X-ray diffraction analysis
Theoretical analysis
molecule self-assembled
2016-09-27 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Shape-Controlled_Synthesis_of_Organometallic_Microcrystal-Based_Hollow_Hexagonal_Micromotors_through_Evaporation-Induced_Supramolecular_Self-Assembly/3987084
A facile strategy
was developed to fabricate structure controllable
microcrystals of ferrocene-based metal–organic (Fc-Ala-BCB)
materials through evaporation-induced self-assembly. Two distinctive
microcrystals, microrods and microtubes had been achieved by tuning
the solvents during the self-assemblies. X-ray diffraction analysis
was conducted on single crystals to investigate the packing mode of
Fc-Ala-BCB molecules, which indicated the two crystals with the hexagonal
system. Inheriting the aromaticity and chirality of ferrocenyl and l-Ala, this organic molecule self-assembled into a single-helix
structure through intermolecule hydrogen bonds and π–π
stacking. Theoretical analysis and stimulated computations were carried
out to compare the surface energies of certain planes. Among those
microcrystals, the microrods exhibited a higher chemical activity
in catalyzing the decomposition of H<sub>2</sub>O<sub>2</sub>, due
to the high-density atomic steps and kinks on the high energy surfaces.
However, the hollow hexagonal tubes displayed appropriate catalytic
activity and novel maneuverability toward catalyzing H<sub>2</sub>O<sub>2</sub>. The O<sub>2</sub> bubbles accumulated at the inner
walls of the microtube were periodically released as individual bubbles,
suggesting their potential application as a new kind of microengine
(e.g., the microrotor).