We report on synthesis of a series of new push-pull compounds of the type A
-X-D, where: Ais polynitrofluorene acceptor moiety, D is donor ferrocene mo
iety and X is various kind of bridges between them. Electronic absorption s
pectra (lambda(ICT)(max) similar or equal to 450-700 nm) and second order p
olarisabilities (EFISH, mu beta(0) = 100-2400 x 10(-48) esu) of these compo
unds are reported.