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000615554 1001_ $$0P:(DE-H253)PIP1107295$$aCao, Fengming$$b0
000615554 245__ $$aContinuous structure modification of metal- organic framework glasses via halide salts
000615554 260__ $$c2024
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000615554 520__ $$aMelting and glass formation of metal-organic frameworks (MOFs) allow them to be processed into bulk materials. However, two major challenges remain: only a small fraction of MOF crystals undergo melting and glass-formation, and no well-established strategies exist for tuning MOF glass structures and properties. Here, we address both challenges through co-melting of zeolitic imidazole frameworks (ZIFs), a subset of MOFs, with heterocycle-based halide salts. The salt acts as a chemical “modifier”, akin to the role of alkali modifiers in traditional silicate glasses, allowing the melting of ZIF-8 that otherwise decomposes prior to melting. Through experimental and computational analyses, we show that the salts depolymerize the ZIFs, enabling continuous tuning of the fraction of bridging to non-bridging imidazolate linkers and, thereby, the thermal and mechanical properties. The proposed strategy enables diversification of MOF glass chemistry, tunable structures and properties, and ultimately an increased number of glass-forming MOFs with new functionalities. 
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000615554 536__ $$0G:(EU-Grant)101044664$$aNewGLASS - New Horizons in Glass Structure Prediction and Mechanics (101044664)$$c101044664$$fERC-2021-COG$$x3
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000615554 7001_ $$0P:(DE-HGF)0$$aSørensen, Søren Strandskov$$b1
000615554 7001_ $$0P:(DE-H253)PIP1108136$$aChristensen, Anders K. R.$$b2
000615554 7001_ $$0P:(DE-H253)PIP1109777$$aMollick, Samraj$$b3
000615554 7001_ $$0P:(DE-H253)PIP1108150$$aGe, Xuan$$b4
000615554 7001_ $$0P:(DE-H253)PIP1112316$$aSun, Daming$$b5
000615554 7001_ $$0P:(DE-HGF)0$$aNielsen, Anders B.$$b6
000615554 7001_ $$aNielsen, Niels Christian$$b7
000615554 7001_ $$aKristensen, Peter K.$$b8
000615554 7001_ $$aJensen, Lars R.$$b9
000615554 7001_ $$0P:(DE-H253)PIP1027104$$aDallari, Francesco$$b10
000615554 7001_ $$0P:(DE-H253)PIP1098736$$aBaglioni, Jacopo$$b11
000615554 7001_ $$0P:(DE-H253)PIP1027208$$aMonaco, Giulio$$b12
000615554 7001_ $$0P:(DE-H253)PIP1089139$$aKarlsen, Martin A.$$b13
000615554 7001_ $$0P:(DE-H253)PIP1031172$$aBaran, Volodymyr$$b14
000615554 7001_ $$0P:(DE-H253)PIP1031535$$aSmedskjaer, Morten M.$$b15$$eCorresponding author
000615554 773__ $$a10.26434/chemrxiv-2024-bgf8b
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