“…A number of papers concerned with ferrocene-containing liquid crystals have been published already. These papers deal with the thermal and mesomorphic properties of monosubstituted ferrocenes (Malthê te & Billard, 1976;Imrie et al, 2001Imrie et al, , 2003Nakamura, Hanasaki, Onoi & Oida, 1993;Hanasaki et al, 1993;Nakamura et al, 1994Nakamura et al, , 1995Nakamura & Takayama, 1997;Nakamura & Setodoi, 1998a,b, 1999aNakamura & Oida, 1999;Nakamura, Maekawahara et al, 2000;Nakamura, Setodoi & Hanasaki, 2000;Nakamura, Setodoi & Takayama, 2000;Nakamura et al, 2002;Nakamura et al, 2006a,b;Zhao et al, 2001;Deschenaux, Marendaz et al, 1995;Loubser et al, 1993;Loubser & Imrie, 1997), 1,1 0 -, 1,3-and 1,2-disubstituted ferrocenes (see next paragraph), 1,1 0 ,3-trisubstituted ferrocene derivatives (Deschenaux, Kosztics & Nocolet, 1995), polycatenar ferrocenes (Deschenaux, Monnet et al, 1998), and ferrocene-containing liquid crystalline dendromers (Carano et al, 2002;Even et al, 2001;Chuard & Deschenaux, 2003;Deschenaux et al, 1997;Dardel et al, 1999;Deschenaux, Even & Guillon, 1998;Campidelli et al, 2004) [see also the reviews by Donnio et al (2003) and Bruce et al (2007a)].…”