X-ray Investigation and Coordination Behaviour of the 1,3-Diallylbenzimidazolium Cation in [C13H15N2]+2 [CuCl2.58Br1.42]2– and [C13H15N2]+[Cu2Cl0.67Br2.33]– Complexes

✍ Scribed by E. A. Goreshnik; D. Schollmeyer; M. G. Mys'kiv; O. V. Pavl'uk

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: German
• Weight: 97 KB
• Volume: 626
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/(sici)1521-3749(200004)626:4<1016::aid-zaac1016>3.0.co;2-z

✦ Synopsis

By means of alternating current electrochemical synthesis crystals of [C 13 H 15 N 2 ] + 2 [CuCl 2.58 Br 1.42 ] ± (I) and [C 13 H 15 N 2 ] + [Cu 2 Cl 0.67 Br 2.33 ] ± (II) have been obtained and structurally characterized. Compound I crystallizes in the orthorhombic system, space group Fddd, a = 7.828(1) A Ê , b = 26.402(2) A Ê , c = 28.595(3) A Ê , D c = 1.4995(5) g/cm 3 , Z = 8, R = 0.067 for 2157 reflections. The CuX 4 2± tetrahedra are connected with the organic cations through an electrostatic interaction. Crystals of II are monoclinic, space group P2 1 /c, a = 9.2293(8) A Ê , b = 22.1332(9) A Ê , c = 9.2939(9) A Ê , b = 118.021(4)°, D c = 2.1251(5) g/cm 3 , Z = 4, R = 0.042 for 2858 reflections. A tetrahedral environment of the Cu1 atom involves four halide atoms, whereas Cu2 possesses a trigonalpyramidal coordination with the C=C-bond and three halide atoms.