| Abstract |
The one-pot self-assembly reaction of copper powder. Reineckes salt, acetone and tris(2-aminoethyl)amine (tren) in dmso, affords to obtain a heterometallic compound [Cu(trenac)][Cr(NCS)(4)(NH3)(2)](NCS) center dot 6dmso with novel Schiff-base ligand N-(2-\[(1E)-3-amino-1,3-dimethylbutylidene]amino\ethyl)-N-(2-aminoet hyl)ethane-1,2-diamine (trenac). The ligand trenac is generated by metal-directed condensation of tren, acetone and ammonia, formed during the synthetic procedure. Xray structural investigations showed that the complex consists of [Cu(trenac)](2+) cations, anions of the Reineckes salt [Cr(NCS)(4)(NH3)(2)](-), uncoordinated thiocyanate groups and dmso molecules, which are held together by electrostatic forces and hydrogen-bonded interactions. The compound was characterized by EPR spectroscopic and magnetic susceptibility measurements. (C) 2008 Elsevier B.V. All rights reserved. |