A 1-D Cu(ii)-based perovskite (C5H8N3)[CuCl3], with gap energy “Eg” of 2.21 eV, has been successfully investigated as a good UV–Vis–NIR absorber. The magnetic analysis suggests that this material can be described by the model of S = 1/2 AFM dimers.

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Nowadays, the organic and organic-inorganic supramolecular crystals are potential candidates for lighting applications. In this work, a new molecular crystal (C5H8N3)2[MnCl4(C5H7N3)2] abbreviated (AmpH)2[MnCl4(Amp)2], (C5H7N3 = Amp = 2-amino-4-methylpyrimidine), containing octahedral...