Efficient near-infrared (NIR) luminescent [Zn(L1)(4-vinyl-Py)Yb(L2)3] complex monomer covalently-bonded into PMMA

Based on the covalently-bonding of a tris-pyrazolonate hetero-binuclear complex monomer [Zn(L1)(4-vinyl-Py)Yb(L2)3] (3) into PMMA, the obtained grafting-type hybrid materials Poly(MMA-co-3) exhibit ideal physical properties including the desirable Yb3+-centered NIR efficiency ΦYbL up to 1.29%.117