By thiolene addition reaction

we successfully synthesized a silylated terpyridine monomer.This compound was characterized by NMR

IR and MS.Two lanthanides inorganicorganic molecular hybrid materials with lanthanide (Eu3+

Tb3+) nicotinate complexes covalently linked to silica were prepared by this monomer and a sol-gel approach.IR

NMR

UV and photoluminescence spectra were applied to characterize the obtained hybrid materials.The above spectroscopic data present that the triplet energy of silylated terpyridine efficiently matches with the emissive energy level of metal ions and initiates the antenna effect.As a result

the intramolecular energy transfer process completed within these molecular based hybrid materials and strong green or red emissions of lanthanide ions (Eu3+

Tb3+) have been obtained.The most prominent emission lines of red (Eu3+) and green (Tb3+) emission hybrid materials were observed at approximately 617 nm and 544 nm.The terbium (Ⅲ) hybrid materials exhibited higher luminescence.Its lifetime was 0.68 ms which suffered a small change.The europium (Ⅲ) hybrid materials’ lifetime was 0.66 ms.All these hybrid materials are homogeneous

and their decay curves can be wellfitted by a single exponential function confirming that all Ln3+ ions are in the same average environment.