Concomitant formation of differently coordinated copper(II) complexes in the same reaction: Structural studies of [trans-Cu(纬-picoline)₂(H₂O)₄](p-toluene sulfonate)₂路2H₂O and [trans-Cu(纬-picoline)<

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• 作者：Raj Pal Sharma^a ; ^{rpsharmapu@yahoo.co.in} ; Anju Saini^a ; Paloth Venugopalan^a ; Valeria Ferretti^b ; ^frt@unife.it
• 关键词：Copper(II) ; p-Toluenesulfonate ; 纬-Picoline ; X-ray
• 刊名：Journal of Molecular Structure
• 出版年：2012
• 期刊代码：62_00222860
• 类别：ch
• 出版时间：16 May, 2012
• 卷：1015
• 期：Complete
• 页码：166-172
• 文件大小：1121 K

摘要

Two new copper(II) complexes comprising of coordinated and non-coordinated p-toluenesulfonate, [trans-Cu(纬-pic)₂(H₂O)₄](pts)₂路2H₂O, 1 and [trans-Cu(纬-pic)₄(pts)₂]路2H₂O, 2 (where p-toluenesulfonate = pts and 纬-picoline = 纬-pic) have been isolated from the same reaction mixture. These complexes have been characterized by spectroscopic techniques, molar conductance, TGA, magnetic susceptibility studies, and single crystal X-ray structure determination. Both complexes crystallize in the monoclinic crystal system with P2₁/c space group having cell dimensions of a = 8.0203(2) 脜, b = 19.4471(4) 脜, c = 10.3000(3) 脜, 尾 = 93.4420(9)掳, V = 1603.61(7) 脜³, (Z = 2) in 1 and a = 10.1473(2) 脜, b = 10.9948(2) 脜, c = 18.0952(5) 脜, 尾 = 93.0340(9)掳, V = 2015.96(8) 脜³, (Z = 2) in 2. Single -crystal X-ray structure determinations revealed the presence of ionic complex, viz: one complex cation [trans-Cu(纬-pic)₂(H₂O)₄], two pts anions and two water molecules of crystallization in the complex 1 and neutral [trans-Cu(纬-pic)₄(pts)₂] and two water molecules of crystallization in 2. The crystal packing in both complexes is stabilized by OH鈰疧, CH鈰疧 hydrogen bonds and CH鈰€ interactions.