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Kang J, Lee Y, Lee S, Ki H, Kim J, Gu J, Cha Y, Heo J, Lee KW, Kim SO, Park J, Park SY, Kim S, Ma R, Eom I, Kim M, Kim J, Lee JH, Ihee H. Dynamic three-dimensional structures of a metal-organic framework captured with femtosecond serial crystallography. Nat Chem 2024; 16:693-699. [PMID: 38528103 PMCID: PMC11087265 DOI: 10.1038/s41557-024-01460-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 01/25/2024] [Indexed: 03/27/2024]
Abstract
Crystalline systems consisting of small-molecule building blocks have emerged as promising materials with diverse applications. It is of great importance to characterize not only their static structures but also the conversion of their structures in response to external stimuli. Femtosecond time-resolved crystallography has the potential to probe the real-time dynamics of structural transitions, but, thus far, this has not been realized for chemical reactions in non-biological crystals. In this study, we applied time-resolved serial femtosecond crystallography (TR-SFX), a powerful technique for visualizing protein structural dynamics, to a metal-organic framework, consisting of Fe porphyrins and hexazirconium nodes, and elucidated its structural dynamics. The time-resolved electron density maps derived from the TR-SFX data unveil trifurcating structural pathways: coherent oscillatory movements of Zr and Fe atoms, a transient structure with the Fe porphyrins and Zr6 nodes undergoing doming and disordering movements, respectively, and a vibrationally hot structure with isotropic structural disorder. These findings demonstrate the feasibility of using TR-SFX to study chemical systems.
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Affiliation(s)
- Jaedong Kang
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Yunbeom Lee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Seonggon Lee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Hosung Ki
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Jungmin Kim
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Jain Gu
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Yongjun Cha
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Jun Heo
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Kyung Won Lee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Seong Ok Kim
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Jaehyun Park
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Sang-Youn Park
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Sangsoo Kim
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Rory Ma
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Intae Eom
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Minseok Kim
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Jeongho Kim
- Department of Chemistry, Inha University, Incheon, Republic of Korea
| | - Jae Hyuk Lee
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - Hyotcherl Ihee
- Department of Chemistry and KI for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
- Center for Advanced Reaction Dynamics, Institute for Basic Science (IBS), Daejeon, Republic of Korea.
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Hoffman AJ, Temmerman W, Campbell E, Damin AA, Lezcano-Gonzalez I, Beale AM, Bordiga S, Hofkens J, Van Speybroeck V. A Critical Assessment on Calculating Vibrational Spectra in Nanostructured Materials. J Chem Theory Comput 2024; 20:513-531. [PMID: 38157404 PMCID: PMC10809426 DOI: 10.1021/acs.jctc.3c00942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
Vibrational spectroscopy is an omnipresent spectroscopic technique to characterize functional nanostructured materials such as zeolites, metal-organic frameworks (MOFs), and metal-halide perovskites (MHPs). The resulting experimental spectra are usually complex, with both low-frequency framework modes and high-frequency functional group vibrations. Therefore, theoretically calculated spectra are often an essential element to elucidate the vibrational fingerprint. In principle, there are two possible approaches to calculate vibrational spectra: (i) a static approach that approximates the potential energy surface (PES) as a set of independent harmonic oscillators and (ii) a dynamic approach that explicitly samples the PES around equilibrium by integrating Newton's equations of motions. The dynamic approach considers anharmonic and temperature effects and provides a more genuine representation of materials at true operating conditions; however, such simulations come at a substantially increased computational cost. This is certainly true when forces and energy evaluations are performed at the quantum mechanical level. Molecular dynamics (MD) techniques have become more established within the field of computational chemistry. Yet, for the prediction of infrared (IR) and Raman spectra of nanostructured materials, their usage has been less explored and remain restricted to some isolated successes. Therefore, it is currently not a priori clear which methodology should be used to accurately predict vibrational spectra for a given system. A comprehensive comparative study between various theoretical methods and experimental spectra for a broad set of nanostructured materials is so far lacking. To fill this gap, we herein present a concise overview on which methodology is suited to accurately predict vibrational spectra for a broad range of nanostructured materials and formulate a series of theoretical guidelines to this purpose. To this end, four different case studies are considered, each treating a particular material aspect, namely breathing in flexible MOFs, characterization of defects in the rigid MOF UiO-66, anharmonic vibrations in the metal-halide perovskite CsPbBr3, and guest adsorption on the pores of the zeolite H-SSZ-13. For all four materials, in their guest- and defect-free state and at sufficiently low temperatures, both the static and dynamic approach yield qualitatively similar spectra in agreement with experimental results. When the temperature is increased, the harmonic approximation starts to fail for CsPbBr3 due to the presence of anharmonic phonon modes. Also, the spectroscopic fingerprints of defects and guest species are insufficiently well predicted by a simple harmonic model. Both phenomena flatten the potential energy surface (PES), which facilitates the transitions between metastable states, necessitating dynamic sampling. On the basis of the four case studies treated in this Review, we can propose the following theoretical guidelines to simulate accurate vibrational spectra of functional solid-state materials: (i) For nanostructured crystalline framework materials at low temperature, insights into the lattice dynamics can be obtained using a static approach relying on a few points on the PES and an independent set of harmonic oscillators. (ii) When the material is evaluated at higher temperatures or when additional complexity enters the system, e.g., strong anharmonicity, defects, or guest species, the harmonic regime breaks down and dynamic sampling is required for a correct prediction of the phonon spectrum. These guidelines and their illustrations for prototype material classes can help experimental and theoretical researchers to enhance the knowledge obtained from a lattice dynamics study.
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Affiliation(s)
| | - Wim Temmerman
- Center
for Molecular Modeling, Ghent University, 9000 Ghent, Belgium
| | - Emma Campbell
- Cardiff
Catalysis Institute, Cardiff University, Cardiff CF10 3AT, United Kingdom
- Research
Complex at Harwell, Didcot OX11 0FA, United
Kingdom
| | | | - Ines Lezcano-Gonzalez
- Research
Complex at Harwell, Didcot OX11 0FA, United
Kingdom
- Department
of Chemistry, University College London, London WC1E 6BT, United Kingdom
| | - Andrew M. Beale
- Research
Complex at Harwell, Didcot OX11 0FA, United
Kingdom
- Department
of Chemistry, University College London, London WC1E 6BT, United Kingdom
| | - Silvia Bordiga
- Department
of Chemistry, University of Turin, 10124 Turin, Italy
| | - Johan Hofkens
- Department
of Chemistry, KU Leuven, 3000 Leuven, Belgium
- Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
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Jain P, Kumari G, Bhogra M, Yanda P, Joseph B, Waghmare UV, Narayana C. Raman Evidence of Multiple Adsorption Sites and Structural Transformation in ZIF-4. Inorg Chem 2023; 62:7703-7715. [PMID: 37163305 DOI: 10.1021/acs.inorgchem.3c00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The zeolitic imidazolate framework, ZIF-4, exhibits soft porosity and is known to show pore volume changes with temperatures, pressures, and guest adsorption. However, the mechanism and adsorption behavior of ZIF-4 are not completely understood. In this work, we report an open to narrow pore transition in ZIF-4 around T ∼ 253 K upon lowering the temperature under vacuum (10-6 Torr) conditions, facilitated by C-H···π interactions. In the gaseous environment of N2 and CO2 around the framework, characteristic Raman peaks of adsorbed gases were observed under ambient conditions of 293 K and 1 atm. A guest-induced transition at ∼153 K resulting in the opening of new adsorption sites was inferred from the Raman spectral changes in the C-H stretching modes and low-frequency modes (<200 cm-1). In contrast to a single vibrational mode generally reported for entrapped N2, we show three Raman modes of adsorbed N2 in ZIF-4. The adsorption is facilitated by dispersive and quadrupolar interactions. From our temperature-dependent Raman results and theoretical analysis based on the density functional tight-binding approach, we conclude that the C-Hs are the preferred adsorption sites on ZIF-4 in the following order: C4-H, C5-H > C2-H > center of the Im ring (interacting with C-H centers) > center of the cavity. We also show that with an increasing concentration of N2 adsorbed at low temperatures, the ZIF-4 structure undergoes shear distortion of the window formed by 4-imidazole rings and consequent volumetric expansion. Our results have immediate implications in the field of porous materials and could be vital in identifying subtle structural transformations that may favor or hinder guest adsorption.
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Affiliation(s)
- Priyanka Jain
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
| | - Gayatri Kumari
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
| | - Meha Bhogra
- Theoretical Science Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
- Department of Mechanical Engineering, Shiv Nadar University, Gautam Budh Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Premakumar Yanda
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
| | - Boby Joseph
- Elettra-Sincrotrone Trieste S.C. p. A., S.S. 14, Km 163.5 in Area Science Park, Basovizza 34149, Italy
| | - Umesh V Waghmare
- Theoretical Science Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
| | - Chandrabhas Narayana
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
- School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Karnataka 560064, India
- Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
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Gutiérrez M, Zhang Y, Tan JC. Confinement of Luminescent Guests in Metal–Organic Frameworks: Understanding Pathways from Synthesis and Multimodal Characterization to Potential Applications of LG@MOF Systems. Chem Rev 2022; 122:10438-10483. [PMID: 35427119 PMCID: PMC9185685 DOI: 10.1021/acs.chemrev.1c00980] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
This
review gives an authoritative, critical, and accessible overview
of an emergent class of fluorescent materials termed “LG@MOF”,
engineered from the nanoscale confinement of luminescent guests (LG)
in a metal–organic framework (MOF) host, realizing a myriad
of unconventional materials with fascinating photophysical and photochemical
properties. We begin by summarizing the synthetic methodologies and
design guidelines for representative LG@MOF systems, where the major
types of fluorescent guest encompass organic dyes, metal ions, metal
complexes, metal nanoclusters, quantum dots, and hybrid perovskites.
Subsequently, we discuss the methods for characterizing the resultant
guest–host structures, guest loading, photophysical properties,
and review local-scale techniques recently employed to elucidate guest
positions. A special emphasis is paid to the pros and cons of the
various methods in the context of LG@MOF. In the following section,
we provide a brief tutorial on the basic guest–host phenomena,
focusing on the excited state events and nanoscale confinement effects
underpinning the exceptional behavior of LG@MOF systems. The review
finally culminates in the most striking applications of LG@MOF materials,
particularly the “turn-on” type fluorochromic chemo-
and mechano-sensors, noninvasive thermometry and optical pH sensors,
electroluminescence, and innovative security devices. This review
offers a comprehensive coverage of general interest to the multidisciplinary
materials community to stimulate frontier research in the vibrant
sector of light-emitting MOF composite systems.
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Affiliation(s)
- Mario Gutiérrez
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
- Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
| | - Yang Zhang
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
| | - Jin-Chong Tan
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
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Krylov A, Yushina I, Slyusareva E, Krylova S, Vtyurin A, Kaskel S, Senkovska I. Structural phase transitions in flexible DUT-8(Ni) under high hydrostatic pressure. Phys Chem Chem Phys 2022; 24:3788-3798. [PMID: 35084013 DOI: 10.1039/d1cp05021d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The behaviours of the open pore (op) and closed pore (cp) phases of the flexible Ni2(ndc)2(dabco) (ndc - 2,6-naphthalene dicarboxylate, dabco - 1,4-diazabicyclo[2.2.2]octane, DUT-8(Ni)) metal-organic framework under high hydrostatic pressures up to 10 GPa in isopropanol and silicone oil were studied by Raman spectroscopy. Ab initio simulations of vibrational spectra were performed for the open and closed pore phases, which allowed us to disclose the characteristic vibrational modes affected by the structural transitions under pressure. Analysis of theoretical and experimental Raman data suggests that the op-cp transition involves gateway vibrations at 25 and 67 cm-1, corresponding to trampoline/rotational motions of aromatic linkers. The experiments reveal the formation of new distorted cp phases at pressures higher than 2 GPa, which are formed without amorphisation. The transition between the cp phase and the distorted cp phase is reversible. The experiments also reveal the pivotal role of the pressure transmitting medium on the phase transition behaviour.
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Affiliation(s)
- Alexander Krylov
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia.
| | - Irina Yushina
- South Ural State University, SEC Nahenotechnology, 454080, Lenin Avenue, 76, Chelyabinsk, Russia
| | - Evgenia Slyusareva
- Siberian Federal University, Svobodny Prospect 79, 660041 Krasnoyarsk, Russia
| | - Svetlana Krylova
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia.
| | - Alexander Vtyurin
- Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia. .,Siberian Federal University, Svobodny Prospect 79, 660041 Krasnoyarsk, Russia
| | - Stefan Kaskel
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
| | - Irena Senkovska
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
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