Some compounds of the type Cu(TsglyH)2X2 (TsglyH = N-tosylglycinate anion; X = imidazole, N-methylimidazole, andpyridine) have been prepared and characterized by means of magnetic moments and ESR, electronic, and infrared spectra.For one of them, bis(N-tosylglycinato)bis(N-methylimidazole)copper(II), the crystal structure has also been determined. The complex has square-planar coordination via two centrosymmetriccarboxylic oxygens and two imidazole nitrogens. Two weak interactions (2.758 A) with two carboxylic oxygens completethe coordination to a strongly distorted tetragonal bipyramid. Packing is determined by N-H(amide)-.O(carboxylate)hydrogen bonds and by van der Waals contacts. Electronic, infrared, and ESR spectra are consistent with this type ofstructure for all the complexes.
Role of the tosyl group on the coordination ability of N-protected aminoacids. 3. Ternary complexes of copper(II) with N-tosylglycine and aromatic amines. Crystal and molecular structure of bis(N-tosylglycinato) bis(N-methylimidazole)copper(II) / L. P., Battaglia; Corradi, Anna; Marcotrigiano, Giuseppe Onofrio; Menabue, Ledi; Pellacani, Gian Carlo. - In: INORGANIC CHEMISTRY. - ISSN 0020-1669. - STAMPA. - 22:(1983), pp. 1902-1906. [10.1021/ic00155a016]
Role of the tosyl group on the coordination ability of N-protected aminoacids. 3. Ternary complexes of copper(II) with N-tosylglycine and aromatic amines. Crystal and molecular structure of bis(N-tosylglycinato) bis(N-methylimidazole)copper(II).
CORRADI, Anna;MARCOTRIGIANO, Giuseppe Onofrio;MENABUE, Ledi;PELLACANI, Gian Carlo
1983
Abstract
Some compounds of the type Cu(TsglyH)2X2 (TsglyH = N-tosylglycinate anion; X = imidazole, N-methylimidazole, andpyridine) have been prepared and characterized by means of magnetic moments and ESR, electronic, and infrared spectra.For one of them, bis(N-tosylglycinato)bis(N-methylimidazole)copper(II), the crystal structure has also been determined. The complex has square-planar coordination via two centrosymmetriccarboxylic oxygens and two imidazole nitrogens. Two weak interactions (2.758 A) with two carboxylic oxygens completethe coordination to a strongly distorted tetragonal bipyramid. Packing is determined by N-H(amide)-.O(carboxylate)hydrogen bonds and by van der Waals contacts. Electronic, infrared, and ESR spectra are consistent with this type ofstructure for all the complexes.
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