Crystal formation in tetracyanoquinodimethane on the nanoscale: polymorphism and progression of self-assembly

Nishida, Maki; Keuren, Edward Van

doi:10.1557/mrc.2011.5

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…If the change is due to the latter effect, it would suggest that two-step nucleation, in which a solid phase forms initially, followed by molecular rearrangement into crystals, may play a role in the cocrystal formation. (Erdemir et al, 2009;Nishida and Van Keuren, 2011).…”

Section: Resultsmentioning

confidence: 99%

Formation of hexamethylbenzene: chloranil charge transfer nanocrystals

Bennett¹,

Khatib²,

Sierchio³

et al. 2019

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The nucleation and growth of nanoparticles can be induced using the reprecipitation method, in which a solution is rapidly mixed with a miscible non-solvent. This method has been used to create a wide variety of organic nanoparticles, including those comprised of polymers or of small molecules. Here we demonstrate the formation of charge transfer nanocrystals of the electron donor hexamethylbenzene and electron acceptor chloranil using the reprecipitation method. We achieve the rapid mixing needed for nanoparticle formation in a number of ways: using a 3D printed vortex micro-mixer, a double impinging jet mixer or direct jet injection of the solution into the non-solvent. The crystal formation kinetics are characterized over times scales from 10 ms to tens of minutes using UV-Vis absorption spectroscopy and dynamic light scattering.

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Section: Resultsmentioning

confidence: 99%

Formation of hexamethylbenzene: chloranil charge transfer nanocrystals

Bennett¹,

Khatib²,

Sierchio³

et al. 2019

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show abstract

“…The crystals prepared by the reprecipitation method often form a metastable state because of their fast crystallization, and crystals change from metastable to stable states over time. [40][41][42] The transition can observe the size change of the crystals. Fig.…”

Section: Materials Advances Accepted Manuscriptmentioning

confidence: 99%