l-Cysteinium…l-cysteine phosphite

(being prepared for publication)

ЖСХ, т.65, №6, 2024, 128209

Received: February, 12, 2024
Revised: February, 20, 2024
Accepted for publication: February, 20, 2024
DOI 10.26902/JSC_id128209
EDN: QJJRUP
Views: 70

¹ Institute of Applied Problems of Physics, NAS of Armenia, Yerevan, Armenia

² Institute of Mineralogy and Crystallography, University of Vienna, Vienna, Austria

³ Max-Planck-Institut für Chemie, Mainz, Germany

⁴ Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia

⁵ Novosibirsk State University, Novosibirsk, Russia

In the system l-cysteine-H₃PO₃-H₂O, a new salt with a dimeric cation, (l-CysH···l-Cys)(H₂PO₃), has been obtained. The compound exhibits incongruent solubility and is synthesized using an equimolar ratio of l-cysteine and phosphorous acid. It crystallizes in the orthorhombic space group P2₁2₁2₁. The dimeric (l-CysH···l-Cys) cation is formed due to a strong O-H···O hydrogen bond with an O···O distance of 2.498 (2) Å. Phosphite anions in the structure are linked to infinite chains. An IR spectrum is recorded and discussed based on its structure.

Keywords: Phosphite; L-Cysteine; Crystal structure; Dimeric cation; Infrared spectra

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l-Cysteinium…l-cysteine phosphite (being prepared for publication)

l-Cysteinium…l-cysteine phosphite

(being prepared for publication)