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In Situ Observation of Successive Crystallizations and Metastable Intermediates in the Formation of Metal-Organic Frameworks - Deleted

DOI: 10.1002/ange.201508763 DOI Help

Authors: Hamish Yeung (NIMS) , Yue Wu (University of Oxford) , Sebastian Henke (University of Cambridge; Ruhr-Universitat Bochum) , Anthony K. Cheetham (University of Cambridge) , Dermot O' Hare (University of Oxford) , Richard Walton (University of Warwick)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie , VOL 128 , PAGES 2052 - 2056

State: Published (Approved)
Published: February 2016
Diamond Proposal Number(s): 9661

Abstract: Understanding the driving forces controlling crystallization is essential for the efficient synthesis and design ofnew materials,particularly metal–organic frameworks(MOFs), where mild solvothermal synthesis often allowsaccess to various phases from the same reagents.Using high-energy in situ synchrotron X-ray powder diffraction, wemonitor the crystallization of lithium tartrate MOFs,observingthe successive crystallization and dissolution of three compet-ing phases in one reaction. By determining rate constants andactivation energies,wefully quantify the reaction energylandscape,gaining important predictive power for the choice ofreaction conditions.Different reaction rates are explained bythe structural relationships between the products and thereactants;larger changes in conformation result in higheractivation energies.The methods we demonstrate can easily beapplied to other materials,opening the door to agreaterunderstanding of crystallization in general.

Journal Keywords: crystal growth; metal–organic frameworks; metastable compounds; reaction kinetics; X-ray diffraction

Subject Areas: Materials

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing

Added On: 14/03/2016 12:23

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