Abstract
The crystal structure and some physico-chemical properties of MnCl2·Pro·H2O (Pro=L-proline) were studied. This compound is stable up to approximately 313 K. Upon heating the complex loses a molecule of water and is transformed into the oxide in two steps. The IR spectrum was recorded. The compound crystallizes in the orthorhombic space groupP212121 witha=7.112(2) Å,b=10.196(2) Å,c=13.249(3) Å andZ=4. The manganese atoms in the polymeric chain are bridged by two chlorine atoms and oxygen atoms from the carboxylate group of L-proline. The Mn−Cl bond distances range from 2.535(1) Å to 2.581(1) Å, the Mn−O bond distances range from 2.135(2) Å to 2.153(2) Å and Mn−Mn bond distances are 3.556(1) Å. One molecule of water is hydrogen-bonded with a nitrogen atom of the L-proline ring.
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Rzączyńska, Z., Mrozek, R. & G/klowiak, T. Crystal structure and properties ofcatena-poly[manganese(II)-μ-dichloro-μ-L-proline-k 2 o,o′] monohydrate. J Chem Crystallogr 27, 417–422 (1997). https://doi.org/10.1007/BF02576477
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DOI: https://doi.org/10.1007/BF02576477