Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.

Versatility in metal substitution is one of the key aspects of metal-organic framework (MOF) chemistry, allowing properties to be tuned in a rational way. As a result, it important to understand why MOF syntheses involving different metals arrive at or fail to produce the same topological outcome. F...

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Päätekijät: Wu, Y, Henke, S, Kieslich, G, Schwedler, I, Yang, M, Fraser, D, O'Hare, D
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: Wiley 2016
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author Wu, Y
Henke, S
Kieslich, G
Schwedler, I
Yang, M
Fraser, D
O'Hare, D
author_facet Wu, Y
Henke, S
Kieslich, G
Schwedler, I
Yang, M
Fraser, D
O'Hare, D
author_sort Wu, Y
collection OXFORD
description Versatility in metal substitution is one of the key aspects of metal-organic framework (MOF) chemistry, allowing properties to be tuned in a rational way. As a result, it important to understand why MOF syntheses involving different metals arrive at or fail to produce the same topological outcome. Frequently, conditions are tuned by trial-and-error to make MOFs with different metal species. We ask: is it possible to adjust synthetic conditions in a systematic way in order to design routes to desired phases? We have used in situ X-ray powder diffraction to study the solvothermal formation of isostructural M2 (bdc)2 dabco (M=Zn, Co, Ni) pillared-paddlewheel MOFs in real time. The metal ion strongly influences both kinetics and intermediates observed, leading in some cases to multiphase reaction profiles of unprecedented complexity. The standard models used for MOF crystallization break down in these cases; we show that a simple kinetic model describes the data and provides important chemical insights on phase selection.
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spelling oxford-uuid:f476f77c-b3ca-4d13-9f95-a648f08c6ce52022-03-27T12:20:04ZTime-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f476f77c-b3ca-4d13-9f95-a648f08c6ce5EnglishSymplectic Elements at OxfordWiley2016Wu, YHenke, SKieslich, GSchwedler, IYang, MFraser, DO'Hare, DVersatility in metal substitution is one of the key aspects of metal-organic framework (MOF) chemistry, allowing properties to be tuned in a rational way. As a result, it important to understand why MOF syntheses involving different metals arrive at or fail to produce the same topological outcome. Frequently, conditions are tuned by trial-and-error to make MOFs with different metal species. We ask: is it possible to adjust synthetic conditions in a systematic way in order to design routes to desired phases? We have used in situ X-ray powder diffraction to study the solvothermal formation of isostructural M2 (bdc)2 dabco (M=Zn, Co, Ni) pillared-paddlewheel MOFs in real time. The metal ion strongly influences both kinetics and intermediates observed, leading in some cases to multiphase reaction profiles of unprecedented complexity. The standard models used for MOF crystallization break down in these cases; we show that a simple kinetic model describes the data and provides important chemical insights on phase selection.
spellingShingle Wu, Y
Henke, S
Kieslich, G
Schwedler, I
Yang, M
Fraser, D
O'Hare, D
Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title_full Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title_fullStr Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title_full_unstemmed Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title_short Time-resolved in situ X-ray diffraction reveals metal-dependent metal-organic framework formation.
title_sort time resolved in situ x ray diffraction reveals metal dependent metal organic framework formation
work_keys_str_mv AT wuy timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT henkes timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT kieslichg timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT schwedleri timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT yangm timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT fraserd timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation
AT ohared timeresolvedinsituxraydiffractionrevealsmetaldependentmetalorganicframeworkformation