The Mixed-Valence Catena-Heteropolycation (Bi2S2)(+)

0545684 - ÚFCH JH 2022 RIV DE eng J - Článek v odborném periodiku
Knies, M. - Nawroth, P. - Golub, Pavlo - Isaeva, A. - Ruck, M.
The Mixed-Valence Catena-Heteropolycation (Bi2S2)(+).
Zeitschrift für anorganische und allgemeine Chemie. Roč. 647, č. 22 (2021), s. 2055-2060. ISSN 0044-2313. E-ISSN 1521-3749
Institucionální podpora: RVO:61388955
Klíčová slova: crystal-structure * ionic liquids * organometallic compounds * intermetallic phase * tellurium cations * polycations * subhalides * sulfides * metal * bi2s3 * catena compounds * ionothermal synthesis * mixed valence compounds * polycations * chemical bonding
Obor OECD: Physical chemistry
Impakt faktor: 1.414, rok: 2021
Způsob publikování: Open access

The reaction of Bi and Bi2S3 in the Lewis-acidic ionic liquid [BMIm]Cl . 4.3AlCl(3) (BMIm=1-n-butyl-3-methylimidazolium) at 200 degrees C yielded air-sensitive black crystals of (Bi2S2)[AlCl4]. X-ray diffraction on single-crystals revealed a monoclinic structure containing infinite chains infinity 1(Bi2S2) + . These polycations contain bismuth(II,III) and sulfur(-II) atoms, connected by polar covalent Bi-S and Bi-Bi bonds. The assignment of bonds is ambiguous as a distinction between primary and secondary interactions is arbitrary based on interatomic distances. A real-space quantum chemical bonding analysis, including delocalization indices, helped to quantify the interactions and charge distribution, confirming that a simple Lewis formula is inappropriate to describe the polycation.
Trvalý link: http://hdl.handle.net/11104/0322356