Can zinc(II) ions be doped into the crystal structure of L-proline cadmium chloride monohydrate?
The bivalent metals Cd(II) and Zn(II) exhibit different stereochemical requirements for the set of chloride and L-proline ligands, which precludes the doping of Zn(II) ions into the crystal structure of dichloro(l-proline)cadmium(II) hydrate also referred to as L-proline cadmium chloride monohydrate (L-PCCM). Hence, the reported claim of growth of zinc doped L-PCCM crystals namely Zn(0.4 mol):LPCCM and Zn(0.2 mol):LPCCM by Vetrivel et al. (S. Vetrivel, P. Anandan, K. Kanagasabapathy, S. Bhattacharya, S. Gopinath, R. Rajasekaran, Effect of zinc chloride on the growth and characterization of l-proline cadmium chloride monohydrate semiorganic NLO single crystals, Spectrochim. Acta 110A (2013) 317-323), is untenable.
Department of Chemistry, Goa University, Goa 403206, India. Electronic address: srini@unigoa.ac.in.
Bikshandarkoil R
BR
Srinivasan
D002104:Cadmium / Q000737:chemistry; D019256:Cadmium Chloride / Q000737:chemistry*; D003460:Crystallization; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D011392:Proline / Q000031:analogs & derivatives* / Q000737:chemistry
D008024:Ligands; D009942:Organometallic Compounds; C522676:Zn-proline; D002104:Cadmium; D011392:Proline; D019256:Cadmium Chloride
Cadmium; Dichloro(l-proline)cadmium(II) hydrate; Doping; Zinc; l-Proline; l-Proline cadmium chloride monohydrate