Journal
CRYSTAL GROWTH & DESIGN
Volume 18, Issue 1, Pages 7-15Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.7b01385
Keywords
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Funding
- National Natural Science Foundation of China [21722201, 91427303, 21420102005, 21790360]
- National Key R&D Program of China [2017YFA0204701]
- Ministry of Science and Technology of China [2015CB856505]
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Because of their resolvable crystal structure; organic conjugated small molecules are intrinsically ideal for elucidating the relationship between microstructures and charge transport properties. It has been reported that the charge transport properties depend on molecular structure and molecular packing. In the sad state, pi-pi stacking of small molecules is significant in the charge transport procesS. Since pi-pi stacking of conjugated small molecules is influenced at different degrees by other intra-and intermolecular interactions, as a result, pi-pi stacking and further the charge transport properties can be controlled or tuned by crystal engineering through precise chemical modification. In this perspective, we give some typical examples illustrating the strategy of Controlling pi-pi stacking in single crystals. Furthermore, we attempt to clarify the complex relationship between pi-pi stacking and other types of molecular interactions, and its influence on charge transport properties.
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