Search Results

You searched for all publications:

with publication states 'Published (Approved)'

Search Again...

These results only include publications that have been reviewed and processed by Diamond Light Source. To also view papers that have not yet been processed click here.

You can use the folder icon under Actions to collate papers as required. You can then click on View Folder in the left-hand navigation to review and/or download your folder.

Exact matches
Related results

2 items found (0 items not approved), displaying all items.1

Instruments / Technical Area	Publication Details	Published	Actions
B22-Multimode InfraRed imaging And Microspectroscopy	Guest-controlled incommensurate modulation in a meta-rigid metal–organic framework material Jiangnan Li , Zhengyang Zhou , Xue Han , Xinran Zhang , Yong Yan , Weiyao Li , Gemma L. Smith , Yongqiang Cheng , Laura J. Mcormick Mpherson , Simon J. Teat , Mark D. Frogley , Svemir Rudic , Anibal J. Ramirez-Cuesta , Alexander J. Blake , Junliang Sun , Martin Schroeder , Sihai Yang Journal Of The American Chemical Society DOI: 10.1021/jacs.0c08794 Diamond Proposal Number(s): [22137] Open Access Show Abstract ▼ Abstract: Structural transitions of host systems in response to guest binding dominate many chemical processes. We report an unprecedented type of structural flexibility within a meta-rigid material, MFM-520, which exhibits a reversible periodic-to-aperiodic structural transition resulting from a drastic distortion of a [ZnO4N] node controlled by the specific host–guest interactions. The aperiodic crystal structure of MFM-520 has no three-dimensional (3D) lattice periodicity but shows translational symmetry in higher-dimensional (3 + 2)D space. We have directly visualized the aperiodic state which is induced by incommensurate modulation of the periodic framework of MFM-520·H2O upon dehydration to give MFM-520. Filling MFM-520 with CO2 and SO2 reveals that, while CO2 has a minimal structural influence, SO2 can further modulate the structure incommensurately. MFM-520 shows exceptional selectivity for SO2 under flue-gas desulfurization conditions, and the facile release of captured SO2 from MFM-520 enabled the conversion to valuable sulfonamide products. MFM-520 can thus be used as a highly efficient capture and delivery system for SO2.	Oct 2020
I11-High Resolution Powder Diffraction I19-Small Molecule Single Crystal Diffraction	Amino acid residues determine the response of flexible metal-organic frameworks to guests Yong Yan , Elliot J. Carrington , Rémi Pétuya , George F. S. Whitehead , Ajay Verma , Rebecca K. Hylton , Chiu C. Tang , Neil G. Berry , George R. Darling , Matthew S. Dyer , Dmytro Antypov , Alexandros P. Katsoulidis , Matthew J. Rosseinsky Journal Of The American Chemical Society DOI: 10.1021/jacs.0c03853 Open Access Show Abstract ▼ Abstract: Flexible metal-organic frameworks (MOFs) undergo structural transformations in response to physical and chemical stimuli. This is hard to control because of feedback between guest uptake and host structure change. We report a family of flexible MOFs based on derivatized amino acid linkers. Their porosity consists of a one-dimensional channel connected to three peripheral pockets. This network structure amplifies small local changes in linker conformation, which are strongly coupled to the guest packing in and the shape of the peripheral pockets, to afford large changes in the global pore geometry that can, for example, segment the pore into four isolated components. The synergy between pore volume, guest packing and linker conformation that characterises this family of structures can be determined by the amino acid sidechain, because it is repositioned by linker torsion. The resulting control optimises non-covalent interactions to differentiate the uptake and structure response of host-guest pairs with similar chemistries.	Jul 2020

Publications Database

Search Results

You searched for all publications:

Search Again...

Subject Areas (check all that apply) select all

Instruments used to collect data (check all that apply) select all

Collaborations involved (check all that apply) select all

Diamond Offline Facilities used

Relevant Technical Areas (check all that apply) select all

Menu for Anonymous User