Synthesis and X-Ray Structural Characterization of Dioxomolybdenum(VI) Complexes with 2a??-(5-Chloro-2-hydroxybenzylidene)isonicotinohydrazide and 2a??-(2-Hydroxy-3-methoxybenzylidene)isonicotinohydrazide

摘要

Two new dioxomolybdenum(VI) complexes, [MoO₂ (Cinh)(CH₃OH)] (1) and [MoO₂(Minh)(CH₃OH)] (2), with the isonicotinohydrazone ligands H₂Cinh and H₂Minh derived from isonicotinohydrazide with 5-chlorosalicylaldehyde and 3-methoxysalicylaldehyde, respectively, have been synthesized and structurally characterized by physico-chemical methods and single crystal X-ray determination. The crystal of (1) crystallizes in triclinic space group P-1, with a = 6.553(2), b = 10.737(4), c = 12.907(4) ? , ?± = 68.021(2), ?2 = 83.788(3), ?3 = 75.072(3)?°, V = 813.6(5) ? 3, Z = 2, R ₁ = 0.0291, wR ₂ = 0.0617, S = 1.044. The crystal of (2) crystallizes in monoclinic space group P2₁, with a = 6.792(2), b = 30.259(4), c = 7.920(3) ? , ?2 = 93.703(3)?°, V = 1624.3(8) ? 3, Z = 4, R ₁ = 0.0501, wR ₂ = 0.1250, S = 1.087. X-ray analysis indicates that the structures of both complexes are similar to each other. The molybdenum atom in each complex is in an octahedral coordination environment, constructed by two oxo groups and NO₂ donor set of the isonicotinohydrazone ligand, and one methanol O atom.View full textDownload full textKeywordscrystal structure, isonicotinohydrazone ligand, molybdenum complex, synthesisRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/15533174.2011.568465