ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Copper(II) complexes with organic ligands. IX. o-Cresotato copper(II) complexes with nitrogen-containing ligands

J. Krätsmár-Šmogrovič and J. Sokolík

Lehrstuhl für anorganische und organische Chemie der Pharmazeutischen Fakultät der Komenský- Universität, Bratislava

Abstract: The reactions of Cu2(cres)4(H2O)3 (cres = 0-cresotate) with N-ligands of the pyridine and aniline type in EtOH, Me2CO, or C6H6, at room temp. and at the b.p. of the solvent, were described. Compds. of the type Cu(cres)2L2 (L = pyridine, α-, β-, γ-picoline, 2,4-, 2,6-lutidine, 2,4,6-collidine, quinoline, isoquinoline, PhNH2, and o-, m-, p-toluidine) were prepd. Rose-violet Cu(cres)2L2, L = β-picoline, was isolated from C6H6; in EtOH the complex was blue. Both show a pronounced difference in x-ray powder patterns. The β-picoline complex crystallizes from the C6H6 soln. with 2 mols. of solvated C6H6. The heterogenonous reactions of Cu2(cres)4(H2O)3 or Cu(cres)2(py)2 with pyridine vapor produce the unstable higher coordination no. complex, Cu(cres)2py3, which gradually liberates a part of the bound pyridine to form Cu(cres)2(py)2. Similar reactions occurred with vapors of β-picoline or γ-picoline, but α-picoline did not react further.

Full paper in Portable Document Format: 228a561.pdf (in German)

Chemical Papers 22 (8) 561–570 (1968)