Effect of t-BuS vs. n-BuS on the topology, Cu?Cu distances and luminescence properties of 2D Cu4I4/RS(CH2)4SR metal–organic frameworks??

New Journal of Chemistry Pub Date: 2011-01-31 DOI: 10.1039/C0NJ00923G

Abstract

CuI reacts with RS(CH2)4SR (R = n-Bu (L1); t-Bu (L2)) to afford the 2D coordination polymers [Cu4I4{μ-RS(CH2)4SR}2]n (R = n-Bu (1); t-Bu (2)). Their grid networks exhibit nodal Cu4(μ3-I)4 clusters interconnected by dithioethers with mean Cu?Cu distances of 2.7265(10) and 2.911(2) ? for 1 and 2, respectively. This difference translates in a blue shift of the solid state emission bands and a decrease in emission lifetimes when trading R = n-Bu to the bulky t-Bu.

Graphical abstract: Effect of t-BuS vs. n-BuS on the topology, Cu?Cu distances and luminescence properties of 2D Cu4I4/RS(CH2)4SR metal–organic frameworks
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