AI Article Synopsis
- The study describes a new hybrid material made from 1-propylpyridinium and [ReN(CN)] that undergoes significant structural transformations when exposed to water vapor.
- When water vapor is introduced, the material changes from dehydrated nitrido-bridged chains to hydrated cyanido-bridged tetranuclear clusters, altering the arrangement of the molecules in the crystals.
- These two forms of the material have different light-emitting properties due to metal-centered transitions, with the nitrido-bridged chain emitting near-infrared light at 749 nm and the cyanido-bridged clusters emitting at 561 nm, showcasing a color shift related to temperature changes.
Article Abstract
We synthesized a (1-propylpyridinium) [ReN(CN) ]-type organic-inorganic hybrid exhibiting water-vapor-induced drastic structural changes of the [ReN(CN) ] assemblies. Specifically, upon exposure to water vapor, dehydrated nitrido-bridged chains were converted to hydrated cyanido-bridged tetranuclear clusters via rearrangements of large molecular building units in the crystals. These switchable assembly forms display substantially different photo-physical properties, although in both cases the emission is caused by a metal-centered d-d transition. The nitrido-bridged chain exhibited a near-infrared (749 nm) emission, which blue-shifted as the temperature increased, while a visible (561 nm) emission and its red shift was demonstrated by the cyanido-bridged cluster.
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| http://dx.doi.org/10.1002/anie.202306853 | DOI Listing |
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