TY - JOUR
T1 - Growth of Two-Dimensional Metal–Organic Framework Nanosheet Crystals on Graphite Substrates by Thermal Equilibrium Treatment in Acetic Acid Vapor
AU - Sakata, Kouhei
AU - Kashiyama, Soichiro
AU - Matsuo, Gento
AU - Uemura, Shinobu
AU - Kimizuka, Nobuo
AU - Kunitake, Masashi
N1 - Funding Information:
This work was supported by Core Research for Evolutional Science and Technology, Japan Science and Technology Agency (JST-CREST) and a Grant-in-Aid for Scientific Research on Innovative Areas: “New Polymeric Materials Based on Element-Blocks (No.2401)” (24102006) from MEXT.
Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2015/8
Y1 - 2015/8
N2 - Large two-dimensional (2D) nanosheets of crystalline coordination frameworks were prepared on highly oriented pyrolytic graphite (HOPG) by re-crystallization induced by thermal equilibrium treatment in acetic acid vapor. The nanosheets comprised 5,10,15,20-tetrakis(4-carboxyphenyl)-porphyrin (H2TCPP) cross-linked by copper ions. We found that an acetic acid vapor environment dramatically decreased the activation energy and accelerated the recombination of coordination bonds between metal ions and carboxylate ligands in the H2TCPP-Cu frameworks. Ultimately, two-dimensional horizontal crystal growth was induced to form monomolecular sheets as the most thermodynamically stable crystal structure on a well-defined surface.
AB - Large two-dimensional (2D) nanosheets of crystalline coordination frameworks were prepared on highly oriented pyrolytic graphite (HOPG) by re-crystallization induced by thermal equilibrium treatment in acetic acid vapor. The nanosheets comprised 5,10,15,20-tetrakis(4-carboxyphenyl)-porphyrin (H2TCPP) cross-linked by copper ions. We found that an acetic acid vapor environment dramatically decreased the activation energy and accelerated the recombination of coordination bonds between metal ions and carboxylate ligands in the H2TCPP-Cu frameworks. Ultimately, two-dimensional horizontal crystal growth was induced to form monomolecular sheets as the most thermodynamically stable crystal structure on a well-defined surface.
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U2 - 10.1002/cnma.201500062
DO - 10.1002/cnma.201500062
M3 - Article
AN - SCOPUS:85028778315
VL - 1
SP - 259
EP - 263
JO - ChemNanoMat
JF - ChemNanoMat
SN - 2199-692X
IS - 4
ER -
