BAYRAKCI, ERTUL
1388
Found, %: C 58.35; H 5.11. C31H33BrKO7. Calculated,
%: C 58.47; H 5.23.
REFERENCES
1. Christensen, A., Jensen, H.S., McKee, V.,
McKenzie, C.J., and Munch, M., Inorg. Chem., 1997,
vol. 36, p. 6080.
Complex IX. A 1 M solution of compound VII in
hot alcohol, 8 ml, was mixed with a 1 M solution of
NaClO4·H2O in alcohol. The mixture was heated to the
boiling point and was left to stand for 2 days. The
precipitate was filtered off, washed with cold metha-
nol, and dried. Yield 2.44 g (45%), mp 285–292°C
(decomp.). IR spectrum (KBr), ν, cm–1: 1722 (C=O),
1586 (C–Carom), 1100–1095 (C–O, ether). Found, %:
C 60.33; H 5.21. Calculated C31H33BrNaO7. Calculat-
ed, %: C 60.01; H 5.36.
2. Curtis N.F., Coord. Chem. Rev., 1968, vol. 3, p. 3;
Busch, D.H., Science, 1971, vol. 171, p. 241; Nel-
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Complex X. A 1 M solution of compound VII in
hot ethyl acetate, 4 ml, was mixed with a 1 M solution
of Pb(SCN)2 in hot water, 4 ml. The precipitate was
filtered off, washed with 50% aqueous alcohol, and
dried. Yield 0.70 g (20%), mp 305–310°C (decomp.).
IR spectrum (KBr), ν, cm–1: 1755 (C=O), 1120 (C–O,
ether). Found, %: C 46.11; H 3.96. C31H33BrO7Pb.
Calculated, %: C 46.27; H 4.13.
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Complex XI. A 1 M solution of compound VII in
hot ethyl acetate, 4 ml, was mixed with a 1 M solution
of Mg(ClO4)·6H2O in hot water, 4 ml. The precipitate
was filtered off, washed with 50% aqueous alcohol,
and dried. Yield 0.15 g (10%), mp 300–307°C
(decomp.). IR spectrum (KBr), ν, cm–1: 1735 (C=O),
1100 (C–O, ether). Found. %: C 60.01; H 5.33.
C31H33BrMgO7. Calculated, %: C 59.87; H 5.35.
vol. 19, p. 364.
11. Blasius, E., Janzen, K.-P., Adrian, W., Klautke, G.,
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Metal picrate extraction study. The detailed
procedure is given in [20–23]. A 1×10–3 M solution of
ligand I–III in chloroform and a solution of picric acid
(2×10–5 M) and the corresponding metal nitrate (or
metal hydroxide for Group IA cations) (1×10–2 M) in
water were prepared. A 50-ml container was charged
with 10 ml of each solution, the container was capped,
and the mixture was shaken for 3 h and left to stand for
phase separation. The concentration of metal picrate in
the aqueous phase was measured by spectrophotom-
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using the equation
14. Tse Lok Ho, Hard and Soft Acids and Bases Principle
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Rappoport, Z., Eds., Chichester: Wiley, 1989.
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% Extraction = (A0 – A)/A0×100,
22. Bradshaw, J.S., Maas, G.E., Izatt, R.M., and Christen-
where A0 is the absorbance of metal picrate in the
aqueous phase prior to extraction, and A is the
absorbance of metal picrate in the aqueous phase after
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port Properties of Macrocyclic Compound in Solution,
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RUSSIAN JOURNAL OF ORGANIC CHEMISTRY Vol. 44 No. 9 2008