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CrystEngComm, 2007, 9, 847 - 851, DOI: 10.1039/b709260c
Survival of the fittest polymorph: how fast nucleater can lose to fast grower
Lian Yu
Controlling the crystallization of a liquid able to yield multiple polymorphs is often assumed to be a matter of controlling the initial nucleation. Recent studies found that this view is flawed because an early nucleating polymorph can nucleate another, faster-growing polymorph. We review how the phenomenon is controlled by thermodynamic and kinetic factors and how it can aid the discovery of new polymorphs. The selective crystallization of a polymorph depends not only on the initial nucleation but also on the cross-nucleation between polymorphs and the relative growth rates of polymorphs.
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