TY - JOUR
T1 - Controlling the Packing of Metal-Organic Layers by Inclusion of Polymer Guests
AU - Le Ouay, Benjamin
AU - Takaya, Hikaru
AU - Uemura, Takashi
N1 - Funding Information:
This work was supported by the JST-CREST program (JPMJCR1321) and a Grant-in Aid for Science Research on Innovative Area “Coordination Asymmetry” (JP16H06517) from the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan.
Publisher Copyright:
Copyright © 2019 American Chemical Society.
PY - 2019/9/18
Y1 - 2019/9/18
N2 - The preparation of metal-organic structures with a controlled degree of disorder is currently one of the most promising fields of materials science. Here, we describe the effect of guest polymer chains on the transformation of a metal-organic framework (MOF). Heating a pillared MOF at a controlled temperature resulted in the exclusive removal of the pillar ligands, while the connectivity of the metal-organic square-grid layers was maintained. In the absence of a polymer, 2D-layers rearranged to form a new crystalline phase. In contrast, the presence of a polymer in the MOF inhibited totally the recrystallization, leading to a turbostratic phase with layers threaded and maintained apart by the polymer chains. This work demonstrates a new synthetic approach toward the preparation of anisotropic metal-organic materials with controlled disorder. It also reveals how guests can dramatically modify the conversion of host MOFs, even though no chemical reaction occurs between them.
AB - The preparation of metal-organic structures with a controlled degree of disorder is currently one of the most promising fields of materials science. Here, we describe the effect of guest polymer chains on the transformation of a metal-organic framework (MOF). Heating a pillared MOF at a controlled temperature resulted in the exclusive removal of the pillar ligands, while the connectivity of the metal-organic square-grid layers was maintained. In the absence of a polymer, 2D-layers rearranged to form a new crystalline phase. In contrast, the presence of a polymer in the MOF inhibited totally the recrystallization, leading to a turbostratic phase with layers threaded and maintained apart by the polymer chains. This work demonstrates a new synthetic approach toward the preparation of anisotropic metal-organic materials with controlled disorder. It also reveals how guests can dramatically modify the conversion of host MOFs, even though no chemical reaction occurs between them.
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U2 - 10.1021/jacs.9b07563
DO - 10.1021/jacs.9b07563
M3 - Article
C2 - 31469958
AN - SCOPUS:85072363611
VL - 141
SP - 14549
EP - 14553
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 37
ER -