Adele Cerquetella, Effendy, Claudio Pettinari, Riccardo Pettinari, Brian W. Skelton, Allan H. White
Six new adducts of the form AgX:PPh3:H2C(pzx)2 (1:1:1) (H2C(pzx)2 = H2C(pz)2 = bis(pyrazolyl)methane or H2C(pzMe2)2 = bis(3,5-dimethylpyrazolyl)methane; X = ClO4, NO3, SO3CF3) have been synthesized and characterized by analytical, spectroscopic (IR, far-IR, 1H and 31P NMR) and two of them also by single crystal X-ray diffraction studies for comparison with counterpart adducts with 2,2′-bipyridyl ('bpy') derivatives reported in a previous paper, the bpy-derived ligands forming five-membered chelate rings, while the present H2C(pzx)2 should, potentially, form six-membered rings. Such is the case, the two adducts exhibiting quasi-planar N2AgP coordination environments, perturbed by the approach of the oxyanion, unidentate in the case of the perchlorate but, in the case of the nitrate, an interesting disordered aggregate of differing unidentate modes. © 2006 Elsevier B.V. All rights reserved.
Dipartimento di Scienze Chimiche, Università degli Studi di Camerino, 62032 Camerino, MC, via S. Agostino 1, Italy; Chemistry M313, School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, Crawley, WA 6009, Australia; Jurusan Pendidikan Kimia, FMIPA Universitas Negeri Malang, Malang, 65145, Jalan Surabaya 6, Indonesia
