Abstract
The title new compound, cis-[Cr(tmpcH)Cl2][ZnCl4]·MeOH (1) was prepared by using 1,4,8,11-tetrakis-(2-Methylpyridyl)-1,4,8,11-tetraazacyclotetradecane (tmpc) with Cr(III) and its structure and electronic transition bands were determined. The compound crystallizes in monoclinic crystal system, space group P21/n with a/Å = 16.9284(12), b/Å = 12.9024(9), c/Å = 20.0535(15), β/º = 109.6790(10), Z = 4. In the X-ray structure of the complex, it was found that the ligand bonds with Cr(III) through exo-coordination to form an octahedral geometry. The electronic spectral data also show that even in the solution state, the compound preserves a six coordinated structure around the metal ion as two bands were observed in the visible region of the spectra. The presence of cis-geometrical configuration in the compound was confirmed by the IR spectral studies.
Graphical Abstract
[Cr(tmpcH)Cl2][ZnCl4]·MeOH, which was prepared by using 1,4,8,11-tetrakis-(2-methylpyridyl)-1,4,8,11-tetraazacyclo- tetradecane (tmpc) with Cr(III), exhibits cis-geometrical configuration, where the ligand bonded with Cr(III) through exo-coordination to form an octahedral geometry
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We gratefully acknowledge the USAI (Unidad de Servicios de Apoyo a la Investigación, Facultad de Química, UNAM) for analytical services.
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Narayanan, J., Sosa-Torres, M.E. & Höpfl, H. Synthesis, Spectral and Crystal Structure of Chromium (III) Complex with 1,4,8,11-tetrakis-(2-Methylpyridyl)-1,4,8,11-Tetraazacyclotetradecane. J Chem Crystallogr 41, 236–240 (2011). https://doi.org/10.1007/s10870-010-9870-z
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DOI: https://doi.org/10.1007/s10870-010-9870-z