吗啉胍同多十钒酸盐的自组装合成、结构表征及抗菌活性

通过十钒酸盐与吗啉胍在不同pH值水溶液中的自组装,合成了2个新化合物(C6H14N5O)4·H2V10O28]·9H2O(1)和(C6H14N5O)6V10O28]·4H2O(2).通过IR,51VNMR和X射线衍射等方法对其结构进行了表征.结果表明,化合物1和2是通过十钒酸根阴离子与质子化的吗啉胍阳离子以静电力和氢键构筑的,多阴离子及吗啉胍的结构基本保持不变.抗菌试验结果表明,两种化合物对金黄色葡萄球菌、表皮葡萄球菌、耐甲氧西林金黄葡萄球菌和耐甲氧西林表皮葡萄球菌均具有较强的抑制活性.

Self-assembly Synthesis, Structure Characterization and Antibacterial Activity of Complexes (ABOB)4[H2V10O28]·9H2O and (ABOB)6[V10O28]·4H2O(ABOB=Moroxydine)

Two novel complexes（C6H14 N5O）4 H2V10 O28 ] ·9H2O（1） and （C6H14 N5O）6 V10 O28 ] ·4H2O（2） were synthesized by the self-assembly of decavanadate and ABOB in aqueous medium at different pH values for the first time. Their structures were determined by means of IR, 51V NMR and X-ray diffraction. Complex 1 crystallizes in the monoclinic system,space group P21/n with a= 1.339 58（8） nm ,b=1.482 62（9） nm,c=1.713 53（14） nm,β=111.450（3）°,V=3.167 5（4） nm3,Z=2,R1=0.050 0,wR2=0.143 4. Complex 2 crystallizes in the monoclinic system,space group P21/n with a=11.698 8（7） nm,b=2.407 94（11） nm,c=1.313 20（10） nm,β=91.635（2）°,V=3.697 8（4） nm3,Z=2,R1=0.039 7,wR2=0.100 8. The X-ray crystallographic study shows that the crystals are constructed by electrostatic forces and hydrogen bond interactions among decavanadate anions,protonated ABOB cations and lattice water molecules. The polyanions,cations and water molecules arrayed in a good order to form 2D layered arrangements along the c axis in complex 1. The antibacterial trial shows that the two complexes show an good antibacterial activity against Staphylococcus aureus,Staphylococcus epidermis,MRSA and MRSE.