The reaction of 4-[(CH2O)2CH]C6H4Br with n-BuLi, followed by the insertion of the chalcogen (S or Se) and in situ reaction with n-BuBr, afforded the formation of (n-Bu){4-[(CH2O)2CH]C6H4}E [E = Se...

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The new ligand (n-Bu)[2-(Me 2 NCH 2)C 6 H 4 ]Se (1) was obtained, in very good yield and its coordination behaviour was investigated towards AgOTf (OTf = trifluoroacetate) and HgCl 2. Ligand 1 and the metal complexes [AgOTf{Se(n-Bu)[C 6 H 4 (CH 2 NMe 2)-2]}] (2) and [HgCl 2 {Se(n-Bu)[C 6 H 4 (CH 2 NMe 2)-2]}] (3) were characterized in solution by multinuclear NMR spectroscopy (1 H, 13 C, 19 F, 77 Se, as appropriate) and mass spectrometry. Single crystal X-ray diffraction studies revealed the formation of a 1D coordination polymer in [AgOTf{Se(n-Bu)[C 6 H 4 (CH 2 NMe 2)-2]}] n (2), when the heteroleptic diorganoselenium(II) ligand present a (N,Se)-bidentate triconective coordination pattern.