Work

Crystal structure and Hirshfeld analysis of poly[bis( N , O -dimethylhydroxylammonium) [di-μ 2 -iodido-diiodidoplumbate(II)]]

Year: 2025

Type: article

Abstract: The title compound, {(C 2 H 8 NO) 2 [PbI 4 ]} n , represents a layered organic–inorganic perovskite, crystallizing in space group C 2/ c . The asymmetric unit comprises one N , O -dimethylhydroxylammonium cation, one Pb 2+ cation located on a twofold rotation axis, and two iodide anions. The Pb 2+ cation is coordinated by six iodido ligands, generating a slightly distorted octahedral {PbI 6 } unit. The octahedra are connected by corner-sharing of equatorial I − ligands to form polymeric inorganic sheets extending parallel to the ab plane. These sheets are separated by double layers of the organic cations, producing a typical di-periodic perovskite-type arrangement with stacking of the layers along the c axis. Neighbouring inorganic layers are shifted relative to each other along both the a and b axes. The N , O -dimethylhydroxylammonium cation engages in two N—H...I hydrogen bonds directed toward axially bound iodido ligands, which consolidates the packing of the crystal structure.

Source: Acta Crystallographica Section E Crystallographic Communications

DOI: 10.1107/s2056989025009661

Authors: Hanna R. Petrosova, Oleksandr A. Semenikhin, Vadim A. Pavlenko, Dina D. Naumova, Mircea-Odin Apostu

Institutions: Taras Shevchenko National University of Kyiv, Alexandru Ioan Cuza University

Language: English

Topic: Crystal structures of chemical compounds

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $500

Funder: Ministry of Education and Science of Ukraine