The 1:1 charge-transfer complex dibenzotetrathiafulvalene–pyromellitic dianhydride (DBTTF–PMDA)

Payne, Margaret E.; Goetz, Katelyn P.; Day, Cyn­thia S.; Jurchescu, Oana D.

doi:10.1107/s1600536814013324

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Indeed, the electron affinity of PMDA is reported to 0.86 eV . It allows PMDA to form various charge-transfer (CT) complexes with tunable electronic properties. − …”

Section: Introductionmentioning

confidence: 99%

Premelting Anomalies in Pyromellitic Dianhydride: Negative Thermal Expansion, Accelerated Radiation Damage, and Polymorphic Phase Transition

et al. 2022

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We have established a comprehensive approach to evaluate the structure−property relationships in solid pyromellitic dianhydride (PMDA) at high temperature. Synchrotron singlecrystal X-ray diffraction experiments have yielded structural models for this volatile compound up to 250 °C. PMDA exhibits negative thermal expansion around 145 °C, which is correlated to geometrical changes in the intermolecular carbonyl−carbonyl interactions. A reversible phase transition above ca. 210 °C was detected by differential scanning calorimetry and is associated with the lowering of the molecular symmetry, as indicated by Raman spectroscopy. X-ray powder and single-crystal diffraction data confirm the formation of a new high-temperature monoclinic phase, with two symmetry-independent anhydride groups in the asymmetric unit. The influence of pyromellitic acid impurities on the formation temperature of the new phase has been investigated, and thermodynamic parameters of pure pyromellitic dianhydride have been revaluated. Additionally, the analysis of the temperatureand time-dependent variations in the diffraction patterns allowed us to track the augmented radiation-driven decarboxylation upon heating. Significantly, the formation of a high-temperature low-symmetry phase in PMDA may challenge the solid-state polymerization that aims for highly oriented materials.

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“…Indeed, the electron affinity of PMDA is reported to 0.86 eV . It allows PMDA to form various charge-transfer (CT) complexes with tunable electronic properties. − …”

Section: Introductionmentioning

confidence: 99%

Premelting Anomalies in Pyromellitic Dianhydride: Negative Thermal Expansion, Accelerated Radiation Damage, and Polymorphic Phase Transition

et al. 2022

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“…Among diverse acceptor molecules already implemented to construct donor–acceptor cocrystals, the vast majority are tetracyanoquinodimethane (TCNQ) derivatives ,, and other small quinone structures; larger acceptor molecules with two or three fused rings are scarce. − …”

Section: Introductionmentioning

confidence: 99%

Charge-Transfer Complexes of Linear Acenes with a New Acceptor Perfluoroanthraquinone. The Interplay of Charge-Transfer and F···F Interactions

Kataeva

Ivshin

Metlushka

et al. 2019

Crystal Growth & Design

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Two charge-transfer bicomponent 1:1 crystals of polycyclic aromatic hydrocarbons (anthracene and tetracene) with a new acceptor molecule (perfluoroanthraquinone) were grown by slow evaporation from solutions in toluene. In both crystals, π−π stacks of alternating donor and acceptor molecules are observed. In the tetracene−perfluoroanthraquinone complex, face-to-face stacking is the prevailing intermolecular interaction, while in the complex of anthracene− perfluoroanthraquinone multiple interactions (stacking, Fsimilar energy are observed, as revealed by the Quantum Theory of Atoms in Molecules method, resulting in the formation of polymorphic modifications, as determined by X-ray single crystal diffraction and differential scanning calorimetry. The charge-transfer degree was estimated to be equal to 0.04 and 0.08 e in anthracene-and tetracene-containing complexes, respectively.

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The 1:1 charge-transfer complex dibenzotetrathiafulvalene–pyromellitic dianhydride (DBTTF–PMDA)

Cited by 2 publications

References 18 publications

Premelting Anomalies in Pyromellitic Dianhydride: Negative Thermal Expansion, Accelerated Radiation Damage, and Polymorphic Phase Transition

Premelting Anomalies in Pyromellitic Dianhydride: Negative Thermal Expansion, Accelerated Radiation Damage, and Polymorphic Phase Transition

Charge-Transfer Complexes of Linear Acenes with a New Acceptor Perfluoroanthraquinone. The Interplay of Charge-Transfer and F···F Interactions

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