Table 3 Tabulation of the physical and chemical properties of the compounds purified by preparative Thin Layer Chromatography

Color

Red

Orange

Reddish Orange

Yellowish Orange

Orange

Pink

Violet

Predicted Molecular formula

ND

ND

C₄₂H₅₁NO₁₆

C₄₂H₅₃NO₁₅

C₃₆H₄₈N₂O₁₂

C₄₀H₅₃NO₁₅

C₃₆H₄₈N₂O₁₂

Melting point (˚C)

ND

184-190

175-178

151-153

185-190

160-163

134-137

UV λ _max (nm)

237(2.014),

297(0.508),

237(1.963),

287(1.751),

297(1.023),

297(1.072),

297(0.552),

257(2.11),

463(sh),

257(sh),

317 (1.74),

497(1.923),

492(0.834),

377(0.101),

284(1.957),

492(0.472),

495(0.483),

375 (1.59),

517(sh),

527(sh)

497(0.304)

492(0.614),

526(sh),

522(0.415),

412 (1.401)

561(0.792)

522(0.635),

562(sh)

562(sh)

437 (1.172)

557(0.461)

IR _max (KBr) (cm ^-1 )

3780,

3763,

3760, 3432,

ND

3394, 2922,

3780, 2924,

ND

2924,

2922,

2924,

1736,

1736,

2131,

1723,

1634, 1363,

1577,1490,

1600, 1459,

1450, 1218, 1120,971, 823

1570, 1458, 1192,1044, 827

1218, 1117, 998

1458, 1190,1024, 825

1363, 1189, 1034, 823

Rf value ^a

0.88

0.80

0.79

0.68

0.62

0.48

0.17