The complex VO（SALEN）was synthesized by the reaction of vanadyl sulfate and H2salen.The complex was dissolved in CH2Cl2 and green needle crystal was obtained.It was characterized by elemental analysis,IR and X-ray diffraction analysis.The complex (C16H14N2O3V,Mr=333.23)belongs to triclinic with space group of Pī.The cell parameters are a=6.678（4）*!,b=1.4663（8）*!,c=15.094,α=102.27（11）°β=92.700（10）°γ=98.387（10）°,V=1424.2（13）*!3,Z=4,Dc=1.554g·cm-3,F（000）=684,μ=0.710mm-1,R1=0.0710,WR2=0.0783.The VO2+ion is five-coordinated to form distorted square pyramid.The thermal decomposition for the complex was investigated and the apparent activation energy was obtained by the Kissinger formula.
A new complex bis[(N-salicylidene-N’-ami noethanol)abstract:dioxovandium (Ⅴ)abstract:,[V (Ⅴ)abstract:(Ⅴ)abstract:(SALAE)abstract:]2 ,was synthesized by the reaction of salicylaldehyde and aminoethanol with va nadyl sulfate.It was characterized by elemental analysis,IR and X-ray single cr ystal diffraction analysis.The crystal of the title complex(C 18 H 20 N 2 O 8 V 2 ,M r =494.24)abstract:be-longs to monoclinic,space group P2 1 /c with the following crystallographic parameters:a=1.7966(6)abstract:nm,b=0.7587(3)abstract:n m,c=2.1539(7)abstract:nm,β =92.551(6)abstract:°,V=2.9329(17)abstract:nm 3 ,Z=6,D c =1.679g · cm -3 ,μ (MoK α )abstract:=1.006mm -1 ,F(000)abstract:=1512,and final R 1 =0.0563,wR 2 =0.1243for observed reflections2861(I>2 σ (I)abstract:)abstract:.The complex is a bis( μ -oxo)abstract:-bridged V schiff base dimer formed by two dioxovandium units,V is six-coordinated and forms a distorted octahedral structure.The thermal d ecomposition for the complex was studied by TG-DTG curves and the apparent acti vation energy was obtained by the Kissinger formula.CCDC:211147.
A new oxovanadium(V) ternary complex, VO(L)(hq) [H2L: N-salicylidene-N′-aminoethanol; hq: 8-hydroxy quinoline], was synthesized by the reaction of salicyaldehyde, aminoethanol and 8-hydroxy quinoline with vanadyl sulfate. It was characterized by elemental analysis, IR and X-ray diffraction analysis. The crystal of the title complex (C18H15N2O4V, Mr=374.26) belongs to monoclinic, space group P21/n with the following crystallographic parameters: a=1.543 5(5) nm, b=0.662 0(2) nm, c=1.648 9(6) nm, β=105.043(7)°, V=1.627 3(10) nm3, Z=4, Dc=1.528 g·cm-3, μ(MoKα)=0.636 mm-1, F(000)=768, and final R1=0.056 8, wR2=0.106 7 for observed reflections 957 (I>2σ(I)). The complex is six-coordinate in distorted octahedral geometry. The thermal decomposition for the complex was studied by TG-DTG curves and the apparent activation energy was obtained by the Kissinger formula. CCDC: 218497.
