International Scholarly Research Notices

Research Article

New Insights into the Chemistry of Oxovanadium(IV) Complexes with N4 Coordinating Ligands

Table 1

Physical and analytical data of the complexes.
ComplexEmpirical formulaDecomp. temp. (°C)C%
Calcd.  
(found)		H%
Calcd.  
(found)		N%
Calcd.  
(found)		V%
Calcd.  
(found)		S%
Calcd.  
(found)		 BM  
(300°K)
VO(L1)]SO4C18H24N6VSO521044.6
(44.3)		 5.0
(4.9)		 17.2
(17.2)		10.5
(10.5)		6.5
(6.4)		1.71
VO(L2)]SO4C18H24N6VSO521244.6
(44.3)		5.0
(4.9)		17.2
(17.2)		10.5
(10.5)		6.5
(6.4)		1.72
VO(mac1a)]SO4C23H28N6VSO521650.1
(50.0)		5.1
(5.0)		15.2
(15.1)		9.2
(9.1)		5.8
(5.7)		1.72
VO(mac1b)]SO4C28H30N6VSO521054.8
(54.7)		4.9
(4.7)		13.7
(13.6)		8.3
(8.2)		5.2
(5.2)		1.72
VO(mac1c)]SO4C26H25N6VS2O5F321246.4
(46.3)		3.7
(3.6)		12.5
(12.4)		7.6
(7.4)		9.5
(9.4)		1.75
VO(mac1d)]SO4C33H32N6VSO521458.7
(58.6)		4.8
(4.8)		12.4
(12.3)		7.5
(7.4)		4.7
(4.6)		1.73
VO(mac2a)]SO4C23H28N6VSO521250.1
(50.1)		5.1
(5.0)		15.2
(15.2)		9.2
(9.1)		5.8
(5.7)		1.72
VO(mac2b)]SO4C28H30N6VSO521254.8
(54.8)		4.9
(4.8)		13.7
(13.6)		8.3
(8.2)		5.2
(5.1)		1.71
VO(mac2c)]SO4C26H25N6VS2O5F321446.4
(46.3)		3.7
(3.6)		12.5
(12.4)		7.6
(7.5)		9.5
(9.4)		1.74
VO(mac2d)]SO4C33H32N6VSO521858.7
(58.6)		4.8
(4.7)		12.4
(12.3)		7.5
(7.4)		4.8
(4.7)		1.74
Where, L1: ligand derived by condensation of 2,2′-pyridil with 1,2-diaminopropane (1 : 2); L2: ligand derived by condensation of 2,2′-pyridil with 1,3-diaminopropane (1 : 2); Mac1a: macrocyclic ligand derived by condensation of L1 with acetylacetone; Mac1b: macrocyclic ligand derived by condensation of L1 with benzoylacetone; Mac1c: macrocyclic ligand derived by condensation of L1 with thenoyltrifluoroacetone; Mac1d: macrocyclic ligand derived by condensation of L1 with dibenzoylmethane; Mac2a: macrocyclic ligand derived by condensation of L2 with acetylacetone; Mac2b: macrocyclic ligand derived by condensation of L2 with benzoylacetone; Mac2c: macrocyclic ligand derived by condensation of L2 with thenoyltrifluoroacetone; Mac2d: macrocyclic ligand derived by condensation of L2 with dibenzoylmethane.