Research Article
Synthesis and Characterization of Metal Tribromoacetates and Their Alkali Metal Derivatives
Table 3
Infrared spectral bands (cm−1) of Fe2Cl2(O2CCBr3)4, Fe2Cl(O2CCBr3)5, and Fe(O2CCBr)3.
| | Fe2Cl2(O2CCBr3)4 | Fe2Cl(O2CCBr3)5 | Fe(O2CCBr)3 | Assignments |
| | 1655 s | 1635 s | 1680, 1630 | COO asym.str. | | 1480 m | 1470 m | 1488 s | COO sym.str. | | 1200 s | 1195 s | 1205 s | CBr3 str. | | 1180 m | 1160 sh | 1170 | CBr3 str. | | 860 s | 850 w | 862 | C–C str. | | 790 s | 790 m | 800 s | O–C–O deform. | | 730 s | 720 s | 742 s | CBr3 bend. | | 640 s | — | 670 w | — | | 630 s | 610 s | 645 w | CBr3 bend. | | 520 s | 530 m | 545 w | CBr3 bend. | | 475 m | 465 w | 455 | M–O | | 385 m | — | 480 | CCO bend. | | 325 m | — | — | M–Cl | | 240 w | — | 280 w | CBr3 rock. |
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s: strong, m: medium, w: weak.
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