translate English to French: •arene, where M = B, n = 4; M = P, As, or Sb, n = 6; and arene is hexamethylbenzene, mesitylene, napthalene, or 9,10-dimethylanthracene, have been prepared and characterized.
•arène dans lesquels M = B, n = 4; M = P, As ou Sb, n = 6 et arène = hexaméthylbenzène, mésitylène, naphtalène ou diméthyl-9,10 anthracène.