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This paper investigates the role of quantum coherence in determining the macroscopic polymorphism of copper phthalocyanine (CuPc) during organic vapor phase deposition. They introduce the Dissipative structure field-Induced Multipartite Entanglement (DIME) framework, integrating blackbody radiation, de Broglie wavelengths, and orbital directionality to model field-driven quantum entanglement. By manipulating environmental decoherence using the DIME framework, they synthesized a previously undiscovered polymorph of CuPc, demonstrating that quantum entanglement governs organic crystal assembly.
Quantum entanglement, not classical thermodynamics, decisively regulates organic crystal assembly, opening a new path to engineer organic semiconductor polymorphism.
The wave-particle duality of massive macromolecules -- such as the fullerene C$_{60}$ -- is a well-established quantum phenomenon. However, whether the quantum behavior of large organic molecules actively dictates the macroscopic structure and function of synthetic materials remains unknown. In organic semiconductors, crystal polymorphism fundamentally determines optoelectronic performance, yet classical thermodynamic models consistently fail to resolve the microscopic origins of phase selection. This includes the long-standing anomaly of divergent polymorph formation under identical thermodynamic parameters across different reactor scales. Here we show that the polymorphism of copper phthalocyanine (CuPc, 576 Da) -- a planar macromolecule comparable in mass to C$_{60}$ -- is governed by quantum coherence during atmospheric-pressure organic vapor phase deposition (OVPD). We establish the Dissipative structure field-Induced Multipartite Entanglement (DIME) framework, which integrates ambient blackbody radiation, molecular de Broglie wavelengths, and frontier orbital directionality to model field-driven quantum entanglement. We demonstrate that exceptionally weak environmental decoherence at room temperature preserves the coherence of molecular matter waves, enabling the self-assembly of ultralong ($>1$ cm) single-crystalline $\eta$-CuPc nanowires. By leveraging the DIME framework to manipulate environmental decoherence, we rationally designed an OVPD reactor to synthesize a previously undiscovered polymorph, designated $\omega$-CuPc. Our findings reveal that multipartite quantum entanglement acts as the decisive regulator of organic crystal assembly, opening a deterministic, quantum-level pathway for engineering organic semiconductor polymorphism.
