Journal of Chemistry

Research Article

Synthesis and Characterization of Some Novel Schiff Base Complexes of Oxovanadium(IV) Cation

Table 1

Physical and analytical data of the complexes.
ComplexEmpirical formulaDecomp. temp. (°C)C% found (Calcd)H% found (Calcd)N% found (Calcd)V% found (Calcd)S% found (Calcd) 𝜇 e ff BM (300°C)
[ VO(L1) ] SO4C20H17N4VSO6F3212 43.6
(43.7)		 3.0
(3.1)		 10.1
(10.2)		9.2
(9.3)		5.7
(5.8)		1.73
[ VO(L2) ] SO4C20H17N4VS2O5F3213 42.4
(42.5)		 2.9
(3.0)		 9.9
(9.9)		9.0
(9.0)		11.2
(11.3)		1.74
[ VO( m a c 1 A ) ] SO4C25H21N4VSO6F3215 48.9
(48.9)		 3.4
(3.5)		 9.0
(9.1)		8.2
(8.3)		5.1
(5.2)		1.72
[ VO( m a c 1 B ) ] SO4C30H23N4VSO6F3217 53.2
(53.3)		 3.3
(3.4)		8.3
(8.3)		7.5
(7.5)		4.5
(4.6)		1.75
[ VO( m a c 1 C ) ] SO4C28H18N4VS2O6F6219 45.6
(45.7)		 2.4
(2.5)		7.5
(7.6)		6.8
(6.9)		8.6
(8.7)		1.74
[ VO( m a c 1 D ) ] SO4C35H25N4VSO6F3227 57.0
(57.0)		 3.3
(3.4)		7.5
(7.6)		6.9
(6.9)		4.3
(4.4)		1.73
[ VO( m a c 2 A ) ] SO4C25H21N4VS2O5F3220 47.6
(47.7)		 3.3
(3.4)		8.8
(8.9)		8.0
(8.1)		10.1
(10.2)		1.72
[ VO( m a c 2 B ) ] SO4C30H23N4VS2O5F3218 52.0
(52.1)		 3.3
(3.4)		8.1
(8.1)		7.4
(7.4)		9.2
(9.3)		1.76
[ VO( m a c 2 C ) ] SO4C28H18N4VS3O5F6221 44.7
(44.8)		 2.3
(2.4)		7.4
(7.5)		6.7
(6.8)		12.7
(12.8)		1.75
[ VO( m a c 2 D ) ] SO4C35H25N4VS2O5F3218 55.7
(55.8)		 3.2
(3.3)		7.4
(7.4)		6.8
(6.8)		8.4
(8.5)		1.74
L1: ligand derived by condensation of 4,4,4-trifluro-1-(2-furyl)-1,3-butanedione and p-phenylenediamine (1:2); L2: ligand derived by condensation of 4,4,4-trifluro-1-(2-thenyl)-1,3-butanedione and p-phenylenediamine (1:2); M a c 1 A : macrocyclic ligand derived by condensation of   L1  with acetylacetone; M a c 1 B : macrocyclic ligand derived by condensation of  L1  with benzoylacetone; M a c 1 C : macrocyclic ligand derived by condensation of  L1  with thenoyltrifluoroacetone; M a c 1 D : macrocyclic ligand derived by condensation of  L1  with dibenzoylmethane; M a c 2 A : macrocyclic ligand derived by condensation of  L2  with acetylacetone; M a c 2 B : macrocyclic ligand derived by condensation of  L2  with benzoylacetone; M a c 2 C :macrocyclic ligand derived by condensation of  L2  with thenoyltrifluoroacetone; M a c 2 D : macrocyclic ligand derived by condensation of  L2  with dibenzoylmethane.