Synthesis and Characterization of a Novel Unsymmetrical Tetradentate Schiff Base Complex of Zinc(II) Derived from N,N′-bis (5-Bromosalicylidene) 2,3-Diaminopyridine (H2L): Crystal Structure of [Zn(II)L]Pyridine
作者： Kamel Ouari , Ali Ourari , Jean Weiss
DOI: 10.1007/S10870-010-9749-Z
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摘要: Yellow crystals of [Zn(N,N′-bis (5-bromosalicylidene) 2,3-diaminopyridine)] Pyridine, [Zn(C19H11Br2N3O2)]C5H5N, have been obtained and characterized by elemental analysis, FT-IR, UV–Vis, 1H NMR spectroscopy MALDI-TOF mass spectrometry. The structure has determined single crystal X-ray crystallography. complex crystallizes in the triclinic space group P-1 with two molecules asymmetric unit cell dimensions a = 8.0103(3) A, b = 12.8340(5) c = 22.3682(11) α = 91.715(2)°, β = 93.918(2)°, γ = 103.708(2)°. V = 2226.30(16) A3, Z = 4, R 1 = 0.0780 wR 2 = 0.1192. determination revealed that consists a [Zn(C19H11Br2N3O2)] moiety coordinated pyridine molecule on metallic centre. zinc atom adopts distorted square pyramidal geometry as it is shown structure. A description unsymmetrical structure, spectroscopic characterization 2D ROESY spectrum
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