A strategy for the controllable generation of organic superbases from benchtop-stable salts

Sujansky, Stephen J.; Hoteling, Garrett A.; Bandar, Jeffrey S.

doi:10.1039/d4sc02524e

Chem. Sci.

2024

DOI: 10.1039/d4sc02524e

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A strategy for the controllable generation of organic superbases from benchtop-stable salts

Stephen J. Sujansky,

Garrett A. Hoteling,

Jeffrey S. Bandar

Abstract: Benchtop-stable organic superbase (SB) carboxylate salts, when paired with an epoxide in situ, controllably generate netural superbases for reaction applications.

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Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

Wei,

Guo,

Liu

et al. 2024

Adv Elect Materials

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Thermal stability is crucial for doped organic semiconductors (OSCs) and their applications in organic thermoelectric (OTE) devices. However, the capacity of n‐dopants to produce thermally stable n‐doped OSC films has not been thoroughly explored, with few reports of high thermal stability. Here, a novel n‐dopant, phosphazenium tetrafluoroborate (P2BF4) is introduced, which effectively induces n‐doping in N2200, P(PzDPP‐CT2) and several other commonly used OSCs. Remarkably, the electrical conductivity of P2BF4‐doped OSC films remains almost unchanged even after heating at temperatures > 150 °C for 24 h, far superior to the films doped with benchmark N‐DMBI. The exceptional thermal stability observed in P2BF4‐doped P(PzDPP‐CT2) films allows for stable operation of the corresponding organic thermoelectric devices at 150 °C for 16 h, a milestone not previously achieved. This study offers valuable insights into the development of n‐dopants capable of producing OSCs with outstanding thermal stability, paving the way for the practical realization of OTE devices with enhanced operation stability.

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Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

Wei,

Guo,

Liu

et al. 2024

Adv Elect Materials

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show abstract

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A strategy for the controllable generation of organic superbases from benchtop-stable salts

Abstract: Benchtop-stable organic superbase (SB) carboxylate salts, when paired with an epoxide in situ, controllably generate netural superbases for reaction applications.

Cited by 1 publication

References 97 publications

Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

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