【摘要】：A organotin complex [Ph3Sn(OCOC5H4NO)]n has been synthesized by the reaction of tripnenyltin hydroxide with pyridine-3-carboxylic acid N-oxide in 1∶1 ratio and characterized by elemental analysis, IR and 1H NMR. The crystal structure has been determined by X-ray single crystal diffraction. The crystal belongs to monoclinic space group P21/c, with a=1.378 29(7) nm, b=1.635 85(8) nm, c=1.881 01(9) nm, β=96.048(2)°, Z=8, V=4.217 5(4) nm3, Dc=1.537 Mg·m-3, μ=1.236 mm-1, F(000)=1 952, R=0.034 3, wR=0.106 3, GOF=1.006. In the molecular structure of the title compound, the tin atoms are five-coordinated in a trigonal bipyramidal geometry. A one-dimensional linear polymer is formed through the interaction between the O atoms of N-O and tin atoms of the adjacent molecule. CCDC: 682506.