Physical Sciences and Mathematics Commons^™

Molecular And Supramolecular Structures Of Triiodides And Polyiodobismuthates Of Phenylenediammonium And Its N,N-Dimethyl Derivative, Evgeny V. Dikarev, Zheng Wei, Tatiana A. Shestimerova, Nikita A. Golubev, Mikhail A. Bykov, Andrei V. Mironov, Sergey A. Fateev, Alexey B. Tarasov, Ivan Turkevych, Andrei V. Shevelkov

Chemistry Department Faculty Scholarship

Despite remarkable progress in photoconversion efficiency, the toxicity of lead-based hybrid perovskites remains an important issue hindering their applications in consumer optoelectronic devices, such as solar cells, LED displays, and photodetectors. For that reason, lead-free metal halide complexes have attracted great attention as alternative optoelectronic materials. In this work, we demonstrate that reactions of two aromatic diamines with iodine in hydroiodic acid produced phenylenediammonium (PDA) and N,N-dimethyl-phenylenediammonium (DMPDA) triiodides, PDA(I₃)₂⋅2H₂O and DMPDA(I₃)I, respectively. If the source of bismuth was added, they were converted into previously reported PDA(BiI₄)₂⋅I_{2 …}