Synthesis, characterization, crystal structures, Hirshfeld surface analysis and theoretical calculations of some new bisphosphoramidate derivatives and novel binuclear triorganotin(IV) complexes with diphosphoryl ligand

A series of new bisphosphoramidate and (thio)phosphoramidate derivatives with the general formula R1R2P(X)–Y–P(X)R1R2 have been synthesized and characterized by IR and NMR spectroscopies (L1–L12). The crystal structure of compound 1,4-[(C2H5O)2P(S)(CH2)3NH]2C4H8N2 (L4) is also investigated by X-ray diffraction analysis. Two novel organotin(IV) complexes μ-{1,4-[(C6H5)2P(O)(CH2)3NH]2C4H8N2}[SnR3Cl]2, R3SnCl (R = phenyl/butyl), C1 and C2,...