Abstract

In the presence of KOBu t , 1-(9-anthracenylmethyl)-3-ethylimidazolium iodide ( 1) is treated with PdCl 2 and Pt(cod)Cl 2 in acetonitrile and THF to afford the luminescent complexes [1-(9-anthracylmethyl)-3-ethylimidazol-2-ylidene] 2PdCl 2 ( 2) and [1-(9-anthracylmethyl)-3-ethylimidazol-2-ylidene] 2PtCl 2 ( 3), respectively, and an analogous treatment with iodine affords [1-(9-anthracylmethyl)-3-ethylimidazol-2-ylidene I] + I 3 − ( 4). In a refluxed CH 2Cl 2 solution imidazolium salt 1 is transformed into another salt 1-(9-anthracylmethyl)-3-ethylimidazol-2-ylidene chloride ( 5). The luminescent emission spectra of 1, 2, 3 and 4 are determined.

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