The title compound is a germanium-based hybrid metal halide that represents a less-toxic alternative to more popular lead-based analogues in optoelectronic applications. {(2-ICHNH)[GeI]} is composed of infinite inorganic layers that are formed by [GeI] octa-hedra connected in a corner-sharing manner with four equatorial I atoms. The organic (2-ICHNH) cations inter-leave the inorganic layers. There are two types of 2-iodo-ethyl-ammonium cations, with synclinal and anti-periplanar conformations. The organic cations inter-act with the inorganic layers through hydrogen bonds and I⋯I contacts. The crystal under investigation was twinned by a 180° rotation around [100].

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11701769PMC
http://dx.doi.org/10.1107/S2056989024011800DOI Listing

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