Poster presentation
279
SYNTHESIS AND THERMAL ANALYSIS OF THE COMPLEX
COMPOUND OF NICKEL (II) SULPHATE WITH NAPHTHALDINE
DISULFOACID
J.R.
Suyunov
1
, X.X.
Turayev
1
, J.M. Ashurov
2
, A.T.
Djalilov
3
, Y.E. Nazarov
1
1) Termez State University,
2) Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan.,
3) Director of the Tashkent Scientific Research Institute of Chemical Technology,
Tel: +99897-850-05-91,
e-mail: jabbor.suyunov@bk.ru
At present, metal complexes containing a naphthalene ring or synthesized on the basis of
naphthalene derivatives are of great importance in manufacturing enterprises, in the
development of agricultural crops and in the field of medicine of the world and our country.
For example, various concentrations of metal complexes containing a naphthalene ring used
in the division and expansion of plant cells from in the formation of adventitious roots in
plants, in increasing the yield of plant fruits, in preventing early fruit abscission, in changing
the ratio of seed and pollen flowers in plants and in many other areas.
0.01 mol (2.81 g) of hydrated nickel(II) sulfate salt (NiSO
4
*7H
2
O) and 0.01 mol (3.32 g)
of naphthalene-1,5-disulfonic acid sodium salt (C
10
H
6
Na
2
O
6
S
2
) were taken on an analytical
balance. The resulting substances were dissolved in distilled water and formed a solution.
First, 5 ml of a solution of naphthalene-1,5-disulfonic acid was measured from the resulting
solutions and poured into a flat-bottomed flask. Then, 5 ml of nickel (II) sulfate salt solution
was added to the solution in the flask. 1 ml of an ethylenediamine (NH
2
-CH
2
-CH
2
-NH
2
)
solution was added dropwise to the resulting mixture while stirring with a magnetic stirrer and
heated at 50-55°C for 25-30 minutes. The obtained transparent pale pink solution was poured
into glass vials, left at room temperature for evaporation, and the process was observed. As a
result, after 10-15 days, the formation of solid crystals of dark blue color, granular form at the
bottom of the containers was observed. When analyzing the crystals obtained by X-ray
diffraction analysis (XRD), it was found that they are new crystals of the composition
(С
2
H
16
N
2
NiO
4
)
2+
Dostları ilə paylaş: