Anion-templated self-assembly of highly stable Fe(II) pentagonal metallacycles with short anion-pi contacts

作者：Giles Ian D; Chifotides Helen T^*; Shatruk Michael; Dunbar Kim R

来源：Chemical Communications, 2011, 47(47): 12604-12606.

DOI：10.1039/c1cc15868f

The crystal structures of the self-assembled metallapentacycles [{Fe-5(bptz)(5)(CH3CN)(10)} subset of 2SbF(6)][SbF6](8) (1) and [{Fe-5(bmtz)(5)(CH3CN)(10)} subset of SbF6][SbF6](9) (2) with the pi-acidic ligands bptz (3,6-bis(2-pyridyl)-1,2,4,5-tetrazine) and bmtz (3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine), respectively, revealed cationic pentagons templated by [SbF6](-) ions. The short anion-pi contacts established between the anions and the tetrazine rings play an important role in the stability of the pentagons.

• 出版日期2011