Isomerism and coordination mode effects on two-photon absorption of tris(picolyl)amine-based fluorescent probes for zinc ions Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014AM026) and the Taishan Scholar Project of Shandong Province, China. |
Divided parts of the molecules Zn1a, Zn1b, Zn1d, and Zn1e. |