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2. Hz, 04 (dd, J =1.1 and 3.6 Hz, 2H)80 (dd, J = 3.6 and 1.5 Hz, 2H), p.5351

2. Hz, 08 (dd, J =1.0 and 5.1 Hz, 2H), 2H, vol.784, issue.6, p.56

J. =. (-d, 73 (t, J = 4.2 Hz, 2H), p.4298815709

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2. Hz, 38 (t, J = 6.8 Hz, 8H), 29 (t, J = 7.1 Hz, 12H) Chapter 9 : Material and Methods

1. Hz, 71 (s, 1H)57 (dd, J = 3.6 and 1.0, 1H); 5.78 (s, 1H), p.1

. (-d, 50 (d, J = 3.7 Hz, 2H)92 (s, 1H), p.16

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. Anal, Calcd for C 52 H 38 N 4 S 4 : C, 73.72; H, 4.52; N, 6.61; S, 15.14%. Found: C, 73.34, pp.4-53

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. Bpy, mmol, 3.97 mg) and 3 drops of N-ethylmorpholine were suspended into 10 mL DMF. The mixture was irradiated in the microwave oven (160° C, 250 W, 10 minutes) Green solution was obtained. Solvent was evaporated and the solid residue and 4,4 ? -dicarboxy-2,2 ? -bipyridine (0.015 mmol, 3.66 mg) was dissolved in 10 mL acetic acid. The mixture was refluxed for 16 h. Then the solution was filtered over celite and filterate was evaporated. The crude solid was dissolved in DMF:methanol (50:50) and subjected to a sephadex LH-20 column by using 30 % DMF solution in methanol as eluting agent. The colored bands were collected. Solvent was evaporated and water was added into resulting solid. Few drops of dilute HNO 3 were added to adjust the pH 3. Saturated aqueous solution of KPF 6 was added in this mixture. Few drops of acetone were also added and left at room temperature overnight. The red solid was formed that was filtered

. Bpy, RuCl 3 .3H 2 O (0.017 mmol, 4.63 mg) and 3 drops of N-ethylmorpholine were suspended into 10 mL DMF. The mixture was irradiated in the microwave oven (160° C, 250 W, 10 minutes) Green solution was obtained. Solvent was evaporated and the solid residue and 4,4 ? -dicarboxy-2,2 ? -bipyridine (0.017 mmol, 4.15 mg) was dissolved in 10 mL acetic acid. The mixture was refluxed for 7 h. Then the solution was filtered over celite and filterate was evaporated. The crude solid was dissolved in 10 % triethylamine solution of methanol and subjected to a sephadex LH-20 column by using 10 % triethylamine solution of methanol as eluting agent. The colored bands were collected

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1. Hz, 85 (d, J = 3.1 Hz, 1H), 1H), 2.43 (s, 3H), p.7738

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