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Color, melting point, yield, and elemental analysis of 1–4.
| Complex | Color | Melting Point (°C) | Yield (%) | Found (Calculated) (%) | |||
|---|---|---|---|---|---|---|---|
| C | H | N | Sn | ||||
| 1 | white | 257–259 | 82 | 64.29 (64.30) | 5.50 (5.52) | 8.92 (8.93) | 15.10 (15.13) |
| 2 | white | 112–114 | 79 | 59.65 (59.68) | 7.62 (7.65) | 9.64 (9.67) | 16.34 (16.38) |
| 3 | off- white | 103–105 | 75 | 63.07 (63.11) | 5.79 (5.83) | 12.23 (12.27) | 10.37 (10.40) |
| 4 | off- white | 76–78 | 88 | 61.01 (61.04) | 6.74 (6.77) | 12.68 (12.71) | 10.73 (10.77) |
