Dithiolene complexes as metalloligands: [Cu(en)(2)][Cu(mnt)(2)], an S=1/2 spin chain

作者：Jeannin Olivier; Clerac Rodolphe; Fourmigue Marc^*

来源：Comptes Rendus Chimie, 2012, 15(10): 845-848.

DOI：10.1016/j.crci.2012.04.004

• S ligands
• Magnetic properties
• Copper
• Structure elucidation
• Through-space interactions

The paramagnetic dithiolene complex [Cu(mnt)(2)](2-) (mnt: 1,2-dicyanoethylene-1,2-dithiolate) is used as metalloligand for coordination of dicationic [Cu(en)(2)](2+) (en: ethylenediamine) complex, leading to the formation of chains of alternating [Cu(mnt)(2)](2-) and [Cu(en)(2)](2+) moieties through C N center dot center dot center dot Cu center dot center dot center dot N C trans coordination with N center dot center dot center dot Cu distance of 2.664(4) angstrom and a noticeable deviation from linearity as the C N center dot center dot center dot Cu angle amounts to 146.3(3)degrees. The [Cu(en)(2)][Cu(mnt)(2)] salt exhibits weak antiferromagnetic interactions between spin carriers along the chains and slightly stronger inter-chain [Cu(mnt)(2)]center dot center dot center dot[Cu(mnt)(2)] antiferromagnetic interactions through intermolecular S center dot center dot center dot S contacts.

• 出版日期2012-10