TY - JOUR
T1 - A rational synthesis of a new discrete anion [trans-CdBr 4Cl 2] 4- and its comparison with newly synthesized anion [CdBr 6] 4-
AU - Sharma, Raj Pal
AU - Shashni, Rohini
AU - Singh, Ajnesh
AU - Venugopalan, Paloth
AU - Yu, Jihong
AU - Yanan, Guo
AU - Ferretti, Valeria
PY - 2011/12/14
Y1 - 2011/12/14
N2 - Two new cobalt(III) complex salts, [Co(en) 3] 2[CdBr 6]·Br 2·2H 2O (1) and [Co(en) 3] 2[trans-CdBr 4Cl 2]·Br 2·2H 2O (2) have been synthesized while attempting to synthesize [CdBr 5] 3- complex ion. The newly synthesized complex salts have been characterized by elemental analyses, spectroscopic techniques (e.g. UV/Visible, IR and NMR), solubility product, conductance measurements and luminescent studies. Both the complex salts 1 and 2 crystallize in monoclinic crystal system with space group P2 1/c. Single crystal X-ray structure determination revealed the presence of ionic structures and discrete anions [CdBr 6] 4- and [trans-CdBr 4Cl 2] 4- in 1 and 2, respectively. This is the first report of synthesis and single crystal X-ray structure determination of discrete and mixed halogenocadmate(II) anion, [trans-CdBr 4Cl 2] 4-. The crystal lattices of both complex salts are stabilized by N-H⋯Br/Cl, C-H⋯Br/Cl and O-H⋯Br hydrogen bonds besides electrostatic forces of attraction.
AB - Two new cobalt(III) complex salts, [Co(en) 3] 2[CdBr 6]·Br 2·2H 2O (1) and [Co(en) 3] 2[trans-CdBr 4Cl 2]·Br 2·2H 2O (2) have been synthesized while attempting to synthesize [CdBr 5] 3- complex ion. The newly synthesized complex salts have been characterized by elemental analyses, spectroscopic techniques (e.g. UV/Visible, IR and NMR), solubility product, conductance measurements and luminescent studies. Both the complex salts 1 and 2 crystallize in monoclinic crystal system with space group P2 1/c. Single crystal X-ray structure determination revealed the presence of ionic structures and discrete anions [CdBr 6] 4- and [trans-CdBr 4Cl 2] 4- in 1 and 2, respectively. This is the first report of synthesis and single crystal X-ray structure determination of discrete and mixed halogenocadmate(II) anion, [trans-CdBr 4Cl 2] 4-. The crystal lattices of both complex salts are stabilized by N-H⋯Br/Cl, C-H⋯Br/Cl and O-H⋯Br hydrogen bonds besides electrostatic forces of attraction.
KW - Cobalt(III)
KW - Coordination chemistry
KW - Hexabromocadmate(II)
KW - Tetrabromodichlorocadmate(II)
KW - X-ray crystallography
UR - http://www.scopus.com/inward/record.url?scp=82755197681&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2011.08.057
DO - 10.1016/j.molstruc.2011.08.057
M3 - Article
AN - SCOPUS:82755197681
SN - 0022-2860
VL - 1006
SP - 121
EP - 127
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
IS - 1-3
ER -