Reactions of R2SnCl2 (R = Me, Et, tBu) with NaSeC5H3(R′-3)N (R′ = H or Me) gave complexes of the composition [R2Sn{2-SeC5H3(R′-3)N)}2], which on treatment with R2SnCl2 afforded chloro complexes, [R2Sn{2-SeC5H3(R′-3)N}Cl]. These complexes were characterized by elemental analyses and UV–vis and NMR (1H, 13C, 77Se and 119Sn) spectroscopy. The crystal structures of [R2Sn(SeC5H4N)2] (R = Me or tBu) and [Me2Sn{2-SeC5H3(Me-3)N}Cl] were determined by single crystal X-ray diffraction. The tin atom in the former two structures acquires a skew trapezoidal configuration, whereas in the latter it adopts a distorted trigonal bipyramidal geometry. Thermolysis of [R2Sn(2-SeC5H4N)2] (R = Me, Et or tBu) and [Et2Sn{2-SeC5H3(Me-3)N}2] in oleylamine (OA) afforded tin selenide nanostructures. Thin films of SnSe were deposited on glass and silicon substrates by the AACVD of [tBu2Sn(2-SeC5H4N)2]. The nanostructures and thin films were characterized by XRD, EDX, AFM, SEM, TEM and SAED techniques. The photovoltaic properties of the thin films have been evaluated.
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