This preprint (arXiv:2603.28834, not peer-reviewed) claims that quantum coherence, rather than classical thermodynamics alone, dictates polymorphism in the organic semiconductor copper phthalocyanine (CuPc). Using atmospheric-pressure organic vapor phase deposition (OVPD), the authors show that preserving molecular matter-wave coherence at room temperature enables growth of ultralong (>1 cm) single-crystalline η-CuPc nanowires and the creation of a previously unknown ω-CuPc polymorph. Their Dissipative structure field-Induced Multipartite Entanglement (DIME) framework combines ambient blackbody radiation, de Broglie wavelengths, and orbital directionality to model how weak decoherence allows multipartite entanglement to guide self-assembly.

The study methodology centers on reactor-scale experiments where environmental decoherence is deliberately tuned; however, the preprint provides no specific sample sizes, statistical replicates, or quantitative coherence lifetime measurements, limiting assessment of robustness. These gaps, typical of early preprints, mean results require independent replication before acceptance.

The work builds on Markus Arndt's landmark 1999 Nature demonstration of wave-particle duality in C60 fullerenes via matter-wave interference, extending quantum behavior from single-molecule diffraction to collective crystal assembly. It also synthesizes insights from reviews on phthalocyanine polymorphism (e.g., RSC Materials Horizons discussions on how phase selection controls charge mobility in organic electronics). Previous coverage and classical models missed the scale-dependent anomalies across reactor sizes, which the authors tie explicitly to quantum coherence rather than impurities or temperature gradients.

Analysis reveals deeper connections to broader quantum-materials trends: similar to long-lived coherence in photosynthetic light-harvesting complexes or recent room-temperature quantum effects in hybrid organic-inorganic systems, this suggests quantum control can operate beyond cryogenic conditions. The finding challenges the assumption that macroscopic material properties are purely classical, offering a deterministic quantum route to engineer optoelectronic performance in solar cells, OLEDs, and flexible transistors. If validated, it could shift organic semiconductor manufacturing from empirical trial-and-error to quantum-informed design, though limitations in current data and the speculative nature of the DIME model warrant cautious optimism.