Syntheses,Crystal Structures,Spectral Properties And Antibacterial Activities Of Novel Schiff Base Ligands And Its Zn(?)and Mn(?) Complexes

Oxime compounds are a type of extremely important schiff base ligands,since they contains a C=N-OR group which is formed by the condensation reation of aldehydes or ketones with hydroxylamine,and these compounds have lone pair electrons with free valence electron orbit d zone transitional metals?such as Cu,Zn,Co,Ni,Mn,etc.?.They are easy to form a structural diversity and excellent performance mononuclear,dinuclear and multinuclear metal-organic complexes.At the same time,a large number of studies have shown that such compounds have a extensively range of applications,such as antibacterial,antibacterial,anti-cancer,catalytic oxidation,corrosion inhibitor and some important applications.Therefore,the preparation of compounds,the investgation of structure and characteristics,ligand with metal ions in the coordination of the coordination chemistry has an indispensable role.In this paper,4-amino acetophenone was used as raw material with diverse ammonium salts synthesize three different intermediates,and Schiff base ligands were synthesized by three classes of intermediate with distinct substituents of salicylaldehyde,respectively,HL¹:1-?4-{[?E?-4-diethyl amino-2-hydroxy benzene methylene]amino}acetophenone oxime?,HL²:1-?4-{[?E?-3,5-dichloro-2-hydroxy benzene methylene]amino}acetophenone methoxy oxime?,HL³:1-?4-{[?E?-3,5-dichloro-2-hydroxy benzene methylene]amino}acetophenone oxime?,HL⁴:1-?4-{[?E?-3,5-dibromo-2-hydroxy benzene methylene chloride]amino}acetophenone oxime?,HL⁵:1-?4-{[?E?-2-hydroxy benzene methylene]amino}acetophenone oxime?,the synthesis of compounds were characterizated by melting point,solubility analysis,elemental analysis,IR,UV absorption spectroscopy and analytical testing methods conventionally.We are adopt the way of natural volatilization,train ligand and metal complexes of single crystal in the different solvent system,get six single crystals,respectively HL¹-Zn???complexes,HL²-Zn???complexes,HL³-Mn???complexes,HL⁴-Mn???complexes,HL⁵,HL⁶,These complexes were measured by using of X-ray single crystal diffraction analysis in purpose to determine their spatial configuration and composition.Its crystallography data are as follows:HL¹-Zn???:Empirical formula,C₄₀H₅₀N₆O₇Zn,Formula weight,790,Crystal system,Monoclinic,Space group,P2?1?/c,Unit cell dimensions:a=25.8672?16??,b=17.6054?11??,c=20.6030?19??,?=90°,?=104.063?8?°,?=90°,Z=8.V=9101.5?12??³,R₁=0.0824,w R₂=0.2084?HL²-Zn???:Empirical formula,C₃₂H₂₆Cl₄Zn N₄O₄,Formula weight,736,Crystal system,triclinic,Space group,???1,Unit cell dimensions:a=10.9526?7??,b=17.4751?14??,c=21.9435?14??,?=104.198?6?°,?=100.022?5?°,?=104.249?6?°,Z=4,V=3821.6?5??³,R₁=0.0791,w R₂=0.2061?HL³-Mn???:Empirical formula,C₄₀H₄₀Cl₈Mn₄O₁₆,Formula weight,1280,Crystal system,triclinic,Space group,???1,Unit cell dimensions:a=9.2586?5??,b=11.6798?10??,c=12.3267?8??,?=70.237?7?°,?=75.557?5?°,?=81.358?6?°,Z=4,V=1211.6?16??³,R₁=0.0333,w R₂=0.0906?HL⁴-Mn???:Empirical formula,C₄₀H₄₀Br₈Mn₄O₁₆,Formula weight:1635,Crystal system,triclinic,Space group,???1,Unit cell dimensions:a=9.3446?11??,b=11.6799?11??,c=12.5833?16??,?=70.937?10?°,?=76.049?11?°,?=80.984?9?°,Z=1,V=1255.2?3??³,R₁=0.0641,w R₂=0.1246?HL⁵:Empirical formula,C₁₅H₁₄N₂O₂,Formula weight,254,Crystal system,Monoclinic,Space group,P2?1?/c,Unit cell dimensions:a=13.5809?12??,b=9.7794?14??,c=9.8883?9??,?=90°,?=97.972°,?=90°,Z=4,V=1300.6?3??³,R₁=0.0635,w R₂=0.1758?HL⁶:Empirical formula,C₁₆H₁₆N₂O₃,Formula weight,284.31,Crystal system,Monoclinic,Space group,P2?1?/c,Unit cell dimensions:a=12.929?13??,b=11.966?12??,c=9.742?9??,?=90°,?=107.449?19?°,?=90°,Z=4,V=1438?2??³,R₁=0.0515,w R₂=0.1767?...