PMMA-supported near-infrared (NIR) luminescent hybrid materials doped with Zn2Ln2-arrayed Schiff-base complexes

Due to degradative chain transfer of 4,4′-bpe within, the Zn2Ln2-arrayed Schiff-base complexes [Zn2(L)2Ln2(4,4′-bpe)(NO3)6] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) cannot be copolymerized with MMA in the presence of AIBN, while PMMA-supported doped hybrid materials PMMA@[Zn2(L)2Ln2(4,4′-bpe)(NO3)6] are obtained, from which their thermal-stability and film-forming properties are distinctively improved besides the retained NIR luminescent properties.