Two Tetrachlorocobaltate(II) Salts With Substituted Benzyl Triphenylphosphonium: Syntheses, Crystal Structures, Weak Interactions, and Magnetic Properties

• Published in: Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry Vol. 42; no. 6; pp. 811 - 817
• Main Authors: Chen, Wei-Qiang, Feng, Mei-Hua, Zhou, Dong-Dong, Peng, Yao-Qiong, Han, Song, Liu, Xiao-Ping, Yang, Le-Min, Zhou, Jia-Rong, Ni, Chun-Lin
• Format: Journal Article
• Language: English
• Published: Taylor & Francis Group 01.07.2012
• Subjects: crystal structures; magnetic properties; substituted benzyl triphenylphosphonium; tetrachlorocobaltate(II)
• ISSN: 1553-3174; 1553-3182
• DOI: 10.1080/15533174.2011.617349

Two new tetrachlorocobaltate(II) salts, [BzTPP] 2 [CoCl 4 ]·H 2 O (1) and [4NO 2 BzTPP] 2 [CoCl 4 ]·H 2 O (2) ([BzTPP] + = 1-benzyl- triphenylphosphonium; [4NO 2 BzTPP] + = 1-(4′-nitrobenzyl)tri- phenylphosphonium), have been prepared and characterized by elemental analysis, IR, MS, single-crystal X-ray diffraction, and magnetic susceptibility. Both 1 and 2 crystallize in the monoclinic space group P2 1 /c. The [CoCl 4 ] 2− anion exhibits a distorted tetrahedral coordination geometry. The C-H···Cl, C-H···O, and C-H···π hydrogen bonds in 1 and 2 give rise to a 3D hydrogen-bonded network structure. Magnetic susceptibility measurements in the temperature range 2-300 K show that both 1 and 2 exhibit an antiferromagnetic coupling behavior.