Abstract
Three-dimensional oriented metal-organic frameworks, or 3D-oriented MOFs, feature precisely arranged pores that extend over large areas. This order is essential for enhancing directed diffusion and arranging functional guest species within the oriented pore channels. [1] For example, pore orientation in porous MOF matrices is desired for photonics and ion conductivity uses.[2] Yet, 3D-oriented MOF films and patterns can rapidly decompose in the presence of moisture and acidic environments. [3] This propensity to degradation limits their applicability.Here, by starting with MOF films that are N3-functionalized and heteroepitaxially aligned, we promote the formation of an oriented polymeric film. With X-ray lithography, we target the azide groups for selective degradation thus enabling the crosslink in defined regions: this fabrication process enables the preparation of porous polymeric patterns. The water-stable porous polymer patterns showed unique fluorescent behaviour when exposed to polarized light, which holds promise for advancing optical and photonic devices. [4] References [1] M. Linares‐Moreau, L. A Brandner, M. de J Velásquez‐Hernández, J. Fonseca, Y. Benseghir, J.M. Chin, D. Maspoch, C. Doonan, P. Falcaro Adv.Mater. 2024, 36, 2309645[2] M.d.J. Velásquez-Hernández, M. Linares-Moreau, L.A. Brandner, B. Marmiroli, M. Barella, G.P. Acuna, S.D, Zilio, M.F.K. Verstreken, D.E. Kravchenko, O.M. Linder-Patton, J.D. Evans, H. Wiltsche, F. Carraro, H. Wolinski, R. Ameloot, C. Doonan and P. Falcaro. Adv.Mater. 2023, 35, 2211478.[3] L.A Brandner, M. Linares-Moreau, G. Zhou, H. Amenitsch, S. Dal Zilio, Z. Huang, C. Doonan, P. Falcaro Chem.Sci., 2023, 14, 12056.[4] L.A. Brandner, B. Marmiroli, M. Linares-Moreau, M. Barella, B. Abbasgholi-NA, M.de J. Velásquez-Hernández, K. L. Flint, S.Dal Zilio, G. P. Acuna, H. Wolinski, C. J. Doonan, P. Falcaro, Submitted.
Published Version
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