Fluorescence enhancement of coordination polymeric gelCrystal data for 4: C14H16NO6.5Zn, M = 367.65, trigonal, P3221, a = 9.0773(5), c = 31.015(3) Å, V = 2213.2(3) Å3, Z = 6, ρcalc = 1.667 g cm−3, T = 223 K, μ = 1.698 mm−1, 3802 independent reflections, final R indices for 3407 reflections [I > 2σ(I)], R1 = 0.0425, wR2 = 0.0895, Rint = 0.0528, GoF = 1.094, Flack parameter = 0.005(15). CCDC 661250. For crystallographic data in CIF or other electronic format see DOI: 10.1039/b807478j

Instant hydrogelation of coumarin-derivatized glycine has been demonstrated in the absence of long-chain hydrophobic groups upon formation of a zinc(ii) coordination polymer, which exhibits fluorescence enhancement upon gelation. [ABSTRACT FROM AUTHOR]