8
72
K. J. DONDE ET AL.
TABLE 6
Electron spin resonance data of copper complexes at liquid nitrogen temperature
a
a
a
2
Complex
gp
g
gav
G
Ap
A
?
Aav
a
?
.
Cu(IMH) ] H O
[
2.069
2.134
2.033
2.034
2.060
2.060
2.091
4.15
60
20
35
15
53.34
18.3
0.286
0.35
2
2
[
Cu(HMHDDO)2]
a
4
ꢂ10 .
range 0.2–0.3, which are less than unity, suggesting the
covalent nature of metal-ligand bonding in the complexes.
pyridyl)benzothiazole-2-thione. Ind. J. Chem. 1997, 36A,
53–156.
1
Khatavkar, S. B.; Haldar, B. C. Structural investigation of Ni(II) com-
plexes of isonitroso-acetylacetone. J. Inorg. Nucl. Chem. 1974, 36,
2239–2245.
CONCLUSION
Kivelson, D.; Neiman, R. R. ESR studies on the bonding in copper
complexes. J. Chem. Phys. 1961, 35, 149–155.
Based on spectroscopic investigations and their correlations
with the available data of known compounds, the proposed
structures of metal complexes have been illustrated in
Figures 3 and 4.
Lever, A. B. P. Inorganic Electronic Spectroscopy; Elsevier:
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Limin, Z. Synthesis and characterisation of copper complexes of
2
,4-dithiouracil. Ind. J. Chem. 1997, 36A, 802–804.
Malve, S. P.; Thakkar, N. V.; Haldar, B. C. Magnetic and spectral
studies of some transition metal complexes of isonitrosothiocam-
phor. Ind. J. Chem. 1990, 29A, 356–360.
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0
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