Synthesis, Characterization And Catalysis For Degradation Of Methylene Blue Of Complexes With N/O Ligands

As new type of molecular functional materials, coordination compounds are not only a wealth of topology and the accumulation variety of ways, but also have tremendous potential such as in gas in storage, separation, catalytic properties, thermal stability, optical properties, mechanical properties, magnetic properties and so on. Crystal engineering involved in molecule or chemical group in the crystal structure and properties of the design and control as well as the crystal structure prediction. It is an important way to realize from molecular to functional materials. The design and synthesis of novel structure and the potential value of coordination polymers and inorganic - organic hybrid materials are two important aspects of crystal engineering research.In this paper, we have been prepared nine kinds of single crystals using aromatic carboxylic acid and it's substitute as ligands, Cu(phth)₂(H₂O)₂(l),Ni (H₂O)₆·(μ-H₂O)₂·K₂(phth)₄(H₂O)(2),[Cu(H₂O)₆][Na₂(SO₄)₂] (3),Cu(H₂O )(C₆H₆NSO3)2·2H₂O (4),Cd(C₇H₅O₄)₂·3H₂O]·2H₂O (5),[Ni₂(C₇H₅O₄)₄·2H₂O] (6). We also synthesis four kinds of single crystals using imidazole or hexamethylenetetramine as ligands, [Cu(im)₆]Cl₂·4H₂O (7),[Cu(im)₆]Cl₂·2H₂O (8),[Cu(H₂O)₆]Cl₂·2{(CH₂)₆N₄}·4H₂O (9),[Ag2(C₆H₁₂N₄)₂Cr₂O₇·H₂O(10).Complex 1 crystallized in Monoclinic, space group P2(l)/c, Z =2, a = 8.3895(17)(A), b=14.441(3) (A), c = 7.0992(14) (A),α= 90°,β= 112.14(3)°,γ= 90°; 2 crystallized in Monoclinic, space group P2(l)/c, Z=2, a =10.455(2) ((?)), b = 6.8670(14) ((?)), c =29.704(6) ((?)),α= 90°,β=98.14(3)°,γ=90°. 3 crystallized in Monoclinic, space group P2(l)/c, Z=2, a = 6.2345(12) ((?)), b = 12.333(3) ((?)), c = 9.1822(18) ((?)),α= 90°,β= 105.56(3)°,γ= 90°; 4 crystallized in Monoclinic, space group P2(l)/n,Z=2, a = 7.4485(8) ((?)),b= 17.4102(19)((?)), c = 7.6509(9) ((?)),α= 90°,β= 116.6880(10)°,γ= 90°; 5 crystallized in Monoclinic, space group P2(l)/c, Z=4, a= 7.8338(8) ((?)),b=19.8658(19) ((?)), c= 12.2359(12)((?)),α= 90°,β= 105.8920(10)°,γ= 90°; 6 crystallized in Monoclinic, space group P21/n, Z=2, a = 8.2698(2) ((?)),b=19.4936(8) ((?)), c = 9.9987(4)((?)),α= 90°,β= 102.641(3)°,γ= 90°; 7 crystallized in Triclinic, space group P-1, Z=l, a = 8.8097(18) ((?)), b = 9.0812(18) ((?)), c=10.586(2) ((?)),α= 75.08(3)°,β=83.14(3)°, y =61.84(3)°;8 crystallized in Monoclinic, space group P 21/n, Z=2, a =8.073(2) ((?)), b =13.239(2) ((?)), c =15.0810(10) (A),α= 90°,β= 97.940(10)°,γ= 90°; 9 crystallized in Triclinic, space group P-1,Z=1, a =9.321(3) ((?)),b = 9.3923(16) ((?)), c =9.4261(16) ((?)),α= 119.523(2)°,β= 94.153(3)°,γ= 101.065(3)°; 10 crystallized in Monoclinic, space group P 21/n, Z=4, a =11.1095(16) ((?)),b = 10.9848(14) ((?)), c = 14.101(2) ((?)),α=90°,β= 100.131(2)°,γ=90°. All crystals were characterized by X-ray diffraction, elemental analysis, IR, TG X-ray diffraction analysis revealed that synthesis methods, pH value, solvent, temperature, reaction time, hydrogen bonding can significantly affect the environment and accumulation way of coordination compounds.In recent years, seeking a highly efficient, low-cost method of refractory organic wastewater treatment are one of the hot environment for scientific research. This article also studied the iron (â…¢) - oxalic acid complexes degradation of methylthionine, discussed the different concentrations of hydrogen peroxide, the pH value of the solution degradation rate of methylthionine, the degradation of decolorization reaction dynamics is one order reaction. The result showing that transition metal complexes can be more effectively ferrioxalate refractory organic wastewater treatment comparing with advanced oxidation and traditional methods, with a rapid response, simple operation and so on.