Orthorhombic modification of tri­phenyl­tin 3‐ureidopropionate

The Sn atom in catena‐poly­tri­phenyl­tin(IV)‐μ‐(3‐ureidopropionato‐O¹:O³)], Sn(C₆H₅)₃(C₄H₇N₂O₃)]_n, is five‐coordinate and has a trans‐C₃SnO₂ trigonal‐bipyrmidal geometry arising from bridging through the O atom of the ureido fragment of an adjacent carboxyl­ate group. Infinite chains propagate helically along the c axis and adjacent chains are linked by N—H?O N?O 2.851 (4) Å] hydrogen bonds into layers.