New Stannandiamines Comprising Photoactive Fragments

The reactions of dibutyltin dichloride with potassium amides KNH-pap, KNH-pbt, and KNH-pbt (pap = 4-(phenylazo)phenyl; pbt = 1,3-benzothiazol-2-yl-4-phenyl; pbt = 1,3-benzothiazol-2-yl-2-phenyl) were studied. It was found that in the case of KNH-pap and KNH-pbt, the only products formed were stannanediamines BuSn(NH-pap) (I) and BuSn(NH-pbt) (II). However, in the case of KNH-pbt, an inseparable mixture of stannanediamine BuSn(NH-pbt) ( III) and cyclodistannadiazane [BuSn(N-pbt)] (IV) was obtained. The molecular structures of compounds I-IV were determined by single-crystal X-ray diffraction (SCXRD) analysis of the crystalline phases I · 0.5CH, II · 0.5THF, III, and IV (CCDC No 2367378 (I · 0.5CH), 2367379 (II · 0.5THF), 2367380 (III), and 2367378 (IV)).