Morphology and structure of ZIF-8 during crystallisation measured by dynamic angle-resolved second harmonic scattering

Stijn Van Cleuvenbergen (), Zachary J. Smith, Olivier Deschaume, Carmen Bartic, Sebastian Wachsmann-Hogiu, Thierry Verbiest and Monique A. van der Veen ()
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Stijn Van Cleuvenbergen: KU Leuven
Zachary J. Smith: University of Science and Technology of China
Olivier Deschaume: Soft-Matter Physics and Biophysics Section, KU Leuven
Carmen Bartic: Soft-Matter Physics and Biophysics Section, KU Leuven
Sebastian Wachsmann-Hogiu: McGill University
Thierry Verbiest: KU Leuven
Monique A. van der Veen: Delft University of Technology

Nature Communications, 2018, vol. 9, issue 1, 1-9

Abstract: Abstract Recent developments in nonlinear optical light scattering techniques have opened a window into morphological and structural characteristics for a variety of supramolecular systems. However, for the study of dynamic processes, the current way of measuring is often too slow. Here we present an alternative measurement scheme suitable for following dynamic processes. Fast acquisition times are achieved through Fourier imaging, allowing simultaneous detection at multiple scattering angles for different polarization combinations. This allows us to follow the crystal growth of the metal organic framework ZIF-8 in solution. The angle dependence of the signal provides insight into the growth mechanism by probing the evolution of size, shape and concentration, while polarization analysis yields structural information in terms of point group symmetry. Our findings highlight the potential of dynamic angle-resolved harmonic light scattering to probe crystal growth processes, assembly–disassembly of biological systems, adsorption, transport through membranes and myriad other applications.

Date: 2018
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DOI: 10.1038/s41467-018-05713-4

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