Polymers Assembled by Dithioether and Polythioether Ligands Bearing Heteroelements in the Spacer Unit

Copper Polymers Assembled by Dithioether and Polythioether Ligands Bearing Heteroelements in the Spacer Unit 

The same group has also investigated the reactivity of the related ligand calix[4]bis(thiacrown-5) L39 (Fig. 48) with alternating conformation toward AgPF6 and Cul.159 In the latter case, two 3D polymers with different topologies co-crystallized from an acetonitrile solution. The monoclinic crystals 39 

FIGURE 50. (a) Illustration of the calix[4]bis(thiacrown-5) ligand L39. (b) Solid-state emission spectrum of 3D polymer 39 (298 K) incorporating closed Cu4I4 clusters as connecting nodes. (Modified from Ref. 159.) 

Upon removal of the coordinated MeCN solvent molecule by heating at 175°C, the initial solvent-coordinated polymer 41 undergoes a unique 

3D-linked with Cu3l3(CH3CN) units (nonemissive off) 

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