Crystal Structure, Spectroscopic and Thermal Investigations of a New 4‐Ammonio‐2,2,6,6‐tetramethylpiperidinium Tetrachlorozincate(II)

• Published in: E-journal of chemistry 2010, Vol.7 (4), p.1562-1570
• Main Authors: El Glaoui, M., Mrad, M. L., Jeanneau, E., Nasr, C.
• Format: Article
• Language: English
• ISSN: 2090-9063; 0973-4945; 2090-9071; 2090-9810
• DOI: 10.1155/2010/962121

The new complex of Zn(II) with 4‐ammino‐2,2,6,6‐tetramethylpiperidine, [C 9 H 22 N 2 ]ZnCl 4 , has been prepared and characterized by various physicochemical studies. This compound crystallizes in the monoclinic system, with the space group P2 1 /c and the following cell parameters: a = 9.8682(7), b = 7.5164(5), c = 21.019(2) Å, β = 99.003 (7) ° , V = 1539.8(2) Å 3 and Z = 4. The crystal structure was solved and refined to R = 0.024 using 3070 reflections. The atomic arrangement can be described by slightly distorted tetrahedral ZnCl 4 2- anions and 4‐ammmonio‐2,2,6,6‐tetramethylpiperidinium cations holding together by different interactions. The four chlorine atoms of the ZnCl 4 2- tetrahedron are acting as acceptors of hydrogen bonds. The crystal packing is influenced by cation‐to‐anion N‐H…Cl and C‐H…Cl hydrogen bonds leading to open framework architecture.