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Two-Dimensional Anisotropic Flexibility of Coordination Polymers Crystals


Authors report a variety of morphologies and mechanical responses from crystals obtained from 1D coordination polymers of cadmium(II) with cyanopyridines. Single-crystal X-ray diffraction revealed strength and direction of the hydrogen bondings and their correlation with structural and energy features.

Pisačić et al., Chemistry of Materials, Vol. 34 - 5, pp. 2439-2448 (2022)

 Crystalline molecular materials, although quite fragile, under certain circumstances may adapt to a variety of external stimuli (heat, irradiation, pressure, …) while maintaining their integrity, which makes them candidates for application in emerging technologies and introduced the exploration of crystal flexibility to the forefront of solid-state research.
Authors here considered in particular one-dimensional (1D) Coordination polymers and in particular Crystals of a family of six one-dimensional coordination polymers of cadmium(II) with cyanopyridines, wich demonstrated  a variety of morphologies and mechanical responses with dominant two-dimensional (2D) anisotropic flexibility. The consequences of fine and controlled structural variations on mechanical behavior were additionally explored via microfocus single-crystal X-ray diffraction and 		complementary theoretical studies, revealing that the relative strength and direction of the hydrogen bonding interactions were the key parameters in delivering a specific mechanical response, highlighting the correlation of those with structural and energy features. 


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Two-Dimensional Anisotropic Flexibility of Mechanically Responsive Crystalline Cadmium(II) Coordination Polymers
Pisačić M., Kodrin I., Trninić A., Đaković M., Chemistry of Materials, Vol. 34 - 5, pp. 2439-2448 (2022)

DOI: 10.1021/acs.chemmater.2c00062


Last Updated on Monday, 22 May 2023 15:31