| Abstract: | Eight new copper(II) complexes with halo-aspirinate anions have been synthesized: Cu2(Fasp)4(MeCN)2]?·?2MeCN (1), Cu2(Clasp)4(MeCN)2]?·?2MeCN (2), Cu2(Brasp)4(MeCN)2]?·?2MeCN (3), {Cu2(Fasp)4(Pyrz)]?·?2MeCN} n (4), {Cu2(Clasp)4(Pyrz)]?·?2MeCN} n (5), Cu2(Brasp)4(Pyrz)] n (6), Cu2(Clasp)4(4,4′-Bipy)] n (7), and Cu2(Brasp)4(4,4′-Bipy)] n (8) (Fasp: fluor-aspirinate; Clasp: chloro-aspirinate; Brasp: bromo-aspirinate; MeCN: acetonitrile; Pyrz: pyrazine; 4,4′-Bipy: 4,4′-bipyridine). The crystal structure of two 2 and 4 have been determined by X-ray diffraction methods. All compounds have been studied employing elemental analysis, IR, and UV-Visible spectroscopic techniques. The results have been compared with previous data reported for complexes with similar structures. |
