N,N-bis(1H-benzimidazol-2-ylmethyl)-N-methylamine chromium (III) chloride → N,N-bis(1H-benzimidazol-2-ylmethyl)-N-methylamine chromium (III) chloride hexafluoroantimonate tetrahydrofuran

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Reaction Steps

4b was synthesised by an analogous procedure to that described for 4a using silver hexafluoroantimonate (0.762 g, 2.22 mmol) and complex 3b (1 g, 2.22 mmol). Yield 1.09 g, 72%. Anal. Calc. for C21H25Cl2CrF6N5OSb: C, 34.93; H, 3.49; N, 9.70. Found C, 34.89; H, 3.58; N, 9.58. IR (cm−1), υ 3220 (NH, s), υ 3050 (Ar—H, s), υ 1597 (ArC═C, m), δ 1480, 1457 (N—H, m), υ 1277 (CN, m), δ 753 (CH, s), υ 664 (Sb—F, s). FAB(+) mass spectrum, m/z 413 [M+-THF], 378 ([M+-Cl, THF], 288 [M+-Cr(THF)C2]. FAB(−) mass spectrum, m/z 235 [M−]. μeff·=3.77 MB.

Provenance & Evidence