期刊
CRYSTAL GROWTH & DESIGN
卷 14, 期 9, 页码 4859-4863出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg501025g
关键词
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资金
- DFG Priority Program 1362 Porous Metal-Organic Frameworks [F1502121-1, HU807112-1]
A small angle neutron scattering (SANS) study is presented, which investigates the impact of a modulator on nucleation and growth of MOF-5 nanopartides. Two DMF solutions, one with the secondary building unit Zn4O(C6H5COO)(6) (SBU) and one with terephthalic acid (BDC) as a linker, were mixed, and 5 min after generation of the mixture, monodentate 4-n-decylbenzoic acid was added as a modulator agent. Time-resolved SANS during the initial stages of the particle formation process offered insight into morphological transformations during the first hours. Subsequently, it could be demonstrated that a shell is formed by the modulator wrapping around the growing MOF-5 particles while directing the formation of MOP-5 nanopartides. This has been made possible by an identification of a mixture of deuterated and hydrogenated solvent (DMF), which matches the scattering contrast of MOF-5, thus giving access to the scattering signal of the modulator.
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