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Viaje a la transformación química multielectrónica y multiprotónica
Shu-Lin Meng1,2, Chen Ye1,2, Xu-Bing Li1,2
1Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China.
Journal of the American Chemical Society
|September 2, 2022
Resumen
Aprovechar la luz para la síntesis química es un desafío debido a la dificultad de las transferencias de múltiples electrones y protones. La catálisis en tándem ofrece un enfoque prometedor para lograr transformaciones eficientes y selectivas utilizando energía luminosa.
Área de la Ciencia:
- La fotoquímica
- Catálisis
- Química sustentable
Sus antecedentes:
- Las transformaciones fotoquímicas de un solo electrón (1e-) han avanzado significativamente.
- Lograr transformaciones fotoquímicas multielectrónicas y protónicas sigue siendo un desafío significativo debido a las limitaciones en la conversión de fotones a excitones y la complejidad de las reacciones de múltiples pasos.
Objetivo del estudio:
- Explorar el potencial de la catálisis en tándem para permitir transformaciones fotoquímicas complejas de multielectrones y protones.
- Para abordar los desafíos en la optimización de la recolección de luz, la transferencia de electrones, las interacciones catalizador-sustrato y la cinética de transferencia de protones.
Principales métodos:
- Orquestación de eventos fotoquímicos y transformaciones catalíticas mediante catálisis en tándem.
- Empleando diseño molecular y material, comprensión mecanicista y modelado teórico.
Principales resultados:
- La catálisis en tándem facilita la química redox multielectrónica mediante la coordinación de los pasos fotoquímicos y catalíticos desde subpicosegundos hasta segundos.
- Este enfoque permite reactividades consecutivas de valor agregado y formaciones selectivas de enlaces.
Conclusiones:
- La catálisis en tándem proporciona una estrategia viable para el avance de la química sintética de multielectrones y protones.
- La investigación futura en diseño molecular, estudios mecanicistas y modelado mejorará la eficiencia, la selectividad y la escalabilidad de la síntesis impulsada por la luz para combustibles, fertilizantes y productos químicos sostenibles.
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