Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 42, Pages 14860-14864Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201904834
Keywords
[2+2] cycloaddition; crystal engineering; metal-organic frameworks; molecular patterning; strained molecules
Categories
Funding
- Ministry of Education, Singapore (National University of Singapore) [R-143-000-A12-114]
- National Research Foundation (NRF) of South Korea [2017R1A4A1014595, 2019R1A2C1002075]
- Overseas Postdoctoral Fellowship of Foresting Next-Generation Research Program through the NRF [2017R1A6A3A03006579]
- Korean government (MSICT)
- POSTEC
- National Research Foundation of Korea [2017R1A4A1014595, 2019R1A2C1002075, 2017R1A6A3A03006579] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Conventional chemical patterning involves films of polymeric materials. Herein, we demonstrate that the presence or absence of guest solvents in the crystal voids modulates the patterning of the cyclobutane rings in highly strained metal-organic frameworks (MOFs) under UV light. The olefin pairs of the spacer ligands, which resemble a ladder-like structure, in the MOF, undergo a [2+2] cycloaddition reaction in a single-crystal-to-single-crystal manner. For instance, a partial photoreaction in the MOFs in the absence of a guest solvent as well as with dimethylacetamide in the voids generated two different patterns of the cyclobutane rings. Surprisingly, the MOF with the lattice dimethylformamide undergoes 100 % photoreaction, but the photoproduct contains broken chains. Such chemical patterning at the molecular level represents a next step in crystal engineering.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available