Synthesis and Characterization of Copper(II) and Zinc(II) Tricyanomethanide (tcm) Complexes with Di(2‐pyridyl)amine (dpyam) as Co‐ligands: [Cu(dpyam)(tcm)2], [Cu(dpyam)(tcm)(OAc)] and Zn(dpyam)2(tcm)2 |
| |
| Authors: | Jun LUO Xin‐Rong ZHANG En‐Qing GAO Wei‐Quan DAI Li‐Li CUI Bao‐Shu LIU |
| |
| Institution: | 1. Tel.: 0086‐021‐25070380‐5;2. Fax: 0086‐021‐25070379;3. School of Pharmacy, Second Military Medical University of PLA, Shanghai 200433, China;4. Department of Chemistry, East China Normal University, Shanghai 200062, China |
| |
| Abstract: | Three new transition metal tricyanomethanide complexes Cu(dpyam)(tcm)2] ( 1 ), Cu(dpyam)(tcm)(OAc)] ( 2 ) and Zn(dpyam)2(tcm)2 ( 3 ) were synthesized and characterized by single crystal X‐ray diffraction analysis. In 1 each copper(II) atom is coordinated to three tcm anions and one dpyam molecule to form a square pyramide geometry. In 2 the coordination geometry around the central metal is also square pyramidal, and each copper atom is surrounded by two tcm anions, one dpyam ligand and one OAc. Both 1 and 2 display a µ1,5‐tcm bridged infinite chain structure. In 3 each zinc(II) atom is coordinated by two tcm anions and two dpyam molecules to form a distorted octahedral geometry. Different from the former two complexes, 3 shows a mononuclear structure. Magnetic susceptibility measurement in the range 2–300 K indicates that there are weak antiferromagnetic couplings between adjacent copper(II) ions in 1 (J=?0.03 cm?1) and 2 (J=?0.11 cm?1) respectively. |
| |
| Keywords: | tricyanomethanide di(2‐pyridyl)amine copper(II) complex crystal structure magnetic property |
|
|
