The polydendate bis(phosphino)amine, tris{2-(N,N-bis(diphenylphosphino)aminoethyl}amine 1 has been prepared in a single step from the reaction of tris(2-aminoethyl)amine with six equivalents of PPh 2 Cl in the presence of NEt 3 in THF. Oxidation of 1 with aqueous H 2 O 2 , elemental sulfur or grey selenium gave the corresponding oxide, sulfide or selenide derivatives. [{(P(E)Ph 2 ) 2 NCH 2 CH 2 } 3 N] (E: 2a O, 2b S, 2c Se), respectively. Reaction of [{(PPh 2 ) 2 NCH 2 CH 2 } 3 N] with 3equiv. of PdCl 2 (cod) or PtCl 2 (cod) gave the corresponding chelate complexes, [Pd 3 Cl 6 1] or [Pt 3 Cl 6 1]. The new compounds were fully characterized by NMR, IR spectroscopy and elemental analysis. The catalytic activity of the Pd(II) complex was tested in the Suzuki coupling and Heck reactions. The Pd(II) complex catalyzed the Suzuki coupling and Heck reaction affording biphenyls and stilbenes, respectively, in high yields.