Synthesis, structure and photophysical properties of complexes [1-(9-anthracylmethyl)-3-alkylimidazol-2-ylidene]2Pt(CxCPh)2

1-(9-Anthracenylmethyl)-3-octylimidazolium chloride (1a) or 1-(9-anthracenylmethyl)-3-ethylimidazolium iodide (1b) was treated with (cod)Pt(CxCPh)2 to afford the luminescent complexes [1-(9-anthracylmethyl)-3-alkylimidazol-2-ylidene]2Pt(CxCPh)2 (2a: alkylyC8H17, 2b: alkylyC2H5). Complex 2a crystallizes in triclinic system, space group Pı¯, a ¼ 8.615(3), b ¼ 13.839(5), c ¼ 13.870(5) A ° , a ¼ 85.275(6)8, b ¼ 84.062(6)8, g ¼ 72.901(6)8, Z ¼ 1: The photophysical properties of 2 were determined. q 2004 Elsevier B.V. All rights reserved.