(1,3-Dimethylimidazolidine-2-selone-κSe)bis(1,10-phenanthroline-κ2N,N′)copper(II) bis(perchlorate) and bis(2,2′-bipyridyl-κ2N,N′)(imidazolidine-2-thione-κS)copper(II) bis(perchlorate)

• Published in: Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2007-08, Vol.63 (8), p.m364-m367
• Main Authors: Blake, Alexander J., Lippolis, Vito, Pivetta, Tiziana, Verani, Gaetano
• Format: Article
• Language: English
• Subjects: Carbon - chemistry; Chlorine - chemistry; Copper - chemistry; Crystal structure; Crystallization; Crystallography, X-Ray - methods; Hydrogen - chemistry; Hydrogen Bonding; Hydrogen bonds; Models, Chemical; Molecular Conformation; Molecular Structure; Organometallic Compounds - chemistry; Perchlorates - chemistry; Platinum - chemistry; Polycyclic aromatic hydrocarbons; Probability
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270107026753

In the first title salt, [Cu(C12H8N2)2(C5H10N2Se)](ClO4)2, the CuII centre occupies a distorted trigonal–bipyramidal environment defined by four N donors from two 1,10‐phenanthroline (phen) ligands and by the Se donor of a 1,3‐dimethylimidazolidine‐2‐selone ligand, with the equatorial plane defined by the Se and by two N donors from different phen ligands and the axial sites occupied by the two remaining N donors, one from each phen ligand. The Cu—N distances span the range 1.980 (10)–2.114 (11) Å and the Cu—Se distance is 2.491 (3) Å. Intermolecular π–π contacts between imidazolidine rings and the central rings of phen ligands generate chains of cations. In the second salt, [Cu(C10H8N2)2(C3H6N2S)](ClO4)2, the CuII centre occupies a similar distorted trigonal–bipyramidal environment comprising four N donors from two 2,2′‐bipyridyl (bipy) ligands and an S donor from an imidazolidine‐2‐thione ligand. The equatorial plane is defined by the S donor and two N donors from different bipy ligands. The Cu—N distances span the range 1.984 (6)–2.069 (7) Å and the Cu—S distance is 2.366 (3) Å. Intermolecular π–π contacts between imidazolidine and pyridyl rings form chains of cations. A major difference between the two structures is due to the presence in the second complex of two N—H...O hydrogen bonds linking the imidazolidine N—H hydrogen‐bond donors to perchlorate O‐atom acceptors.