Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Self‐Standing Chiral Covalent Organic Framework Thin Films with Full‐Color Tunable Guest‐Induced Circularly Polarized Luminescence

Journal Article · · Angewandte Chemie
 [1];  [1]; ;  [1];  [1];  [2];  [2];  [1];  [1];  [2];  [2];  [3]
  1. GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine School of Chemistry South China Normal University 510006 Guangzhou P. R. China
  2. GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine School of Chemistry South China Normal University 510006 Guangzhou P. R. China, SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd. 511517 Qingyuan P. R. China
  3. The Molecular Foundry Lawrence Berkeley National Laboratory 94720 Berkeley California United States

Abstract

Exploring self‐standing chiral covalent organic framework (COF) thin films with controllable circularly polarized luminescence (CPL) is of paramount significance but remains a challenging task. Herein, we demonstrate the first example of self‐standing chiral COF films employing a polymerization‐dispersion‐filtration strategy. Pristine, low‐quality chiral COF films were produced by interfacial polymerization and then re‐dispersed into COF colloidal solutions. Via vacuum assisted assembly, these COF colloids were densely stacked and assembled into self‐standing, pure chiral COF films ( L‐ / D‐ CCOF‐F) that were transparent, smooth, crack‐free and highly crystalline. These films were tunable in thicknesses, areas, and roughness, along with strong diffuse reflectance circular dichroism (DRCD) and cyan CPL signals, showing an intrinsic luminescence asymmetric factor ( g lum ) of ~4.3×10 −3 . Furthermore, these COF films served as host adsorbents to load various achiral organic dye guests through adsorption. The effective chiral transfer and energy transfer between CCOF‐F and achiral fluorescent dyes endowed the dyes with strong chirality and tunable DRCD, resulting in intense, full‐color‐tunable solid‐state CPL. Notably, the ordered arrangement of dye guest molecules within the preferentially oriented chiral pores of CCOF‐F contributed to an amplified | g lum | factor of up to 7.2×10 −2 , which is state‐of‐the‐art for COF‐based CPL materials. This work provides new insights into the design and fabrication of self‐standing chiral COF films, demonstrating their great potential for chiroptical applications.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; AC02-05CH11231
OSTI ID:
2475002
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (54)

Chiral Metal–Organic Cluster Induced High Circularly Polarized Luminescence of Metal–Organic Framework Thin Film journal June 2022
Versatile Helical Polymer Films: Chiroptical Inversion Switching and Memory with Re‐Writable (RW) and Write‐Once Read‐Many (WORM) Modes journal September 2004
The Organic Flatland-Recent Advances in Synthetic 2D Organic Layers journal March 2015
Circularly Polarized Luminescence in Nanoassemblies: Generation, Amplification, and Application journal August 2019
Enantiomeric MOF Crystals Using Helical Channels as Palettes with Bright White Circularly Polarized Luminescence journal August 2020
Constructing Chiral Covalent‐Organic Frameworks for Circularly Polarized Light Detection journal September 2023
Turn‐On Circularly Polarized Luminescence in Metal–Organic Frameworks journal January 2021
Emerging Cubic Chirality in γCD‐MOF for Fabricating Circularly Polarized Luminescent Crystalline Materials and the Size Effect journal February 2020
Chemically Delaminated Free-Standing Ultrathin Covalent Organic Nanosheets journal November 2016
Covalent Organic Frameworks with Chirality Enriched by Biomolecules for Efficient Chiral Separation journal November 2018
Counteranion‐ and Solvent‐Mediated Chirality Transfer in the Supramolecular Polymerization of Luminescent Platinum(II) Complexes journal November 2018
2,2′‐Diamino‐6,6′‐diboryl‐1,1′‐binaphthyl: A Versatile Building Block for Temperature‐Dependent Dual Fluorescence and Switchable Circularly Polarized Luminescence journal February 2019
Self‐Assembly through Coordination and π‐Stacking: Controlled Switching of Circularly Polarized Luminescence journal April 2019
Nanoparticle Size‐Fractionation through Self‐Standing Porous Covalent Organic Framework Films journal December 2019
Emerging Cubic Chirality in γCD‐MOF for Fabricating Circularly Polarized Luminescent Crystalline Materials and the Size Effect journal February 2020
Circularly Polarized Fluorescence Resonance Energy Transfer (C‐FRET) for Efficient Chirality Transmission within an Intermolecular System journal October 2021
Stacked Reticular Frame Boosted Circularly Polarized Luminescence of Chiral Covalent Organic Frameworks journal November 2021
Two‐Dimensional Chiral Polyrotaxane Monolayer with Emergent and Steerable Circularly Polarized Luminescence journal November 2021
Chiral Covalent Organic Framework Packed Nanochannel Membrane for Enantioseparation journal May 2022
Self‐Assembly of Helical Nanofibrous Chiral Covalent Organic Frameworks journal December 2022
The use of circular dichroism spectroscopy for studying the chiral molecular self-assembly: An overview journal January 2008
Charge-transfer excited state properties of chiral transition metal coordination compounds studied by chiroptical spectroscopy journal October 1998
Chemically Robust Covalent Organic Frameworks: Progress and Perspective journal November 2020
Chiral induction in carbazole-conjugated covalent organic frameworks: A supersensitive fluorescence sensing platform for chiral recognition journal March 2022
Synergetic Multichiral Covalent Organic Framework for Enantioselective Recognition and Separation journal January 2024
Chiral Carboxyl-Functionalized Covalent Organic Framework for Enantioselective Adsorption of Amino Acids journal June 2021
Postmodification of an Amine-Functionalized Covalent Organic Framework for Enantioselective Adsorption of Tyrosine journal May 2023
Raising the Asymmetric Catalytic Efficiency of Chiral Covalent Organic Frameworks by Tuning the Pore Environment journal February 2024
Inverting the Handedness of Circularly Polarized Luminescence from Light-Emitting Polymers Using Film Thickness journal June 2019
Chemical-Stimuli-Controllable Circularly Polarized Luminescence from Anion-Responsive π-Conjugated Molecules journal June 2011
Polycrystalline Covalent Organic Framework Films Act as Adsorbents, Not Membranes journal January 2021
Are Highly Stable Covalent Organic Frameworks the Key to Universal Chiral Stationary Phases for Liquid and Gas Chromatographic Separations? journal January 2022
Chiral-Induced Ultrathin Covalent Organic Frameworks Nanosheets with Tunable Circularly Polarized Luminescence journal April 2022
Chirality-Controlled Supramolecular Donor–Acceptor Copolymerization with Distinct Energy Transfer Efficiency journal May 2022
Potential Difference-Modulated Synthesis of Self-Standing Covalent Organic Framework Membranes at Liquid/Liquid Interfaces journal June 2022
Bottom–Up Design of Photoactive Chiral Covalent Organic Frameworks for Visible-Light-Driven Asymmetric Catalysis journal August 2023
Symmetry Breaking in the Supramolecular Gels of an Achiral Gelator Exclusively Driven by π–π Stacking journal December 2015
Selective Molecular Separation by Interfacially Crystallized Covalent Organic Framework Thin Films journal September 2017
Chiral BINOL-Based Covalent Organic Frameworks for Enantioselective Sensing journal April 2019
Covalent Self-Assembly in Two Dimensions: Connecting Covalent Organic Framework Nanospheres into Crystalline and Porous Thin Films journal November 2019
Helical Assemblies of One-Dimensional Supramolecular Polymers Composed of Helical Macromolecules: Generation of Circularly Polarized Light Using an Infinitesimal Chiral Source journal January 2020
Morphology and Molecular Conformation in Thin Films of Poly-γ-methyl-l-glutamate at the Air−Water Interface journal December 2001
Covalent organic framework membranes through a mixed-dimensional assembly for molecular separations journal May 2019
Photothermal conversion triggered thermal asymmetric catalysis within metal nanoparticles loaded homochiral covalent organic framework journal July 2019
Laminated self-standing covalent organic framework membrane with uniformly distributed subnanopores for ionic and molecular sieving journal January 2020
The promotion effect of π-π interactions in Pd NPs catalysed selective hydrogenation journal April 2022
Short hydrogen-bond network confined on COF surfaces enables ultrahigh proton conductivity journal November 2022
Covalent organic framework membranes for efficient separation of monovalent cations journal November 2022
Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer journal March 2023
The luminescent and photophysical properties of covalent organic frameworks journal January 2020
Covalent organic framework nanosheets: preparation, properties and applications journal January 2020
The largest CPL enhancement by further assembly of self-assembled superhelices based on the helical TPE macrocycle journal January 2020
Application of electronic circular dichroism in configurational and conformational analysis of organic compounds journal January 2007
Chiral Sign Induction by Vortices During the Formation of Mesophases in Stirred Solutions journal June 2001

Similar Records

Self‐Assembly of Helical Nanofibrous Chiral Covalent Organic Frameworks
Journal Article · Tue Dec 13 23:00:00 EST 2022 · Angewandte Chemie · OSTI ID:1909490

Brilliant Sm, Eu, Tb and Dy chiral lanthanide complexes withstrong circularly polarized luminescence
Journal Article · Mon Jul 10 00:00:00 EDT 2006 · Journal of the American Chemical Society · OSTI ID:923411

Related Subjects