Synthesis, Characterization, and Crystal Structure Analysis of the First Terdentate [C,N,S] Thiosemicarbazone Complex with a Six‐Membered Palladacycle: Influence of Steric Effects on Ring Size
作者:Adriana Amoedo、Luis A. Adrio、José M. Antelo、Javier Martínez、M. Teresa Pereira、Alberto Fernández、José M. Vila
DOI:10.1002/ejic.200501100
日期:2006.8
thiosemicarbazone ligands 1-(COMe)-3-[C(H)=NN(H)C(=S)NHR]C8H5N, (R = H a, Me b, Et c) with potassium tetrachloropalladate in an ethanol/water mixture led to the new tetranuclear palladium(II) compounds [Pd1-(COMe)-3-[C(H)=NN=C(S)NHR]C8H4N-k3C5,N,S}]4 (R = H 1a, Me 1b, Et 1c) which contain six-membered metallacycles. The thiosemicarbazone ligands in these complexes are terdentate through the C, N, and S atoms and
缩氨基硫脲配体 1-(COMe)-3-[C(H)=NN(H)C(=S)NHR]C8H5N, (R = H a, Me b, Et c) 与四氯钯酸钾在乙醇/水混合物产生了新的四核钯 (II) 化合物 [Pd1-(COMe)-3-[C(H)=NN=C(S)NHR]C8H4N-k3C5,N,S}]4 ( R = H 1a, Me 1b, Et 1c) 包含六元金属环。这些复合物中的缩氨基硫脲配体通过 C、N 和 S 原子是三齿的,并在 NH 基团处去质子化。形成的 Pd-S 键足够强,可以与亲核试剂发生反应而不会断裂。1a 和 1b 与 1,2-双(二苯基膦酰基)乙烷 (dppe) 反应得到双核物质 [Pd[1-(COMe)-3-C(H)=NN=C(S)NHR}C8H4N] }2(μ-Ph2P(CH2)2PPh2)] (R = H 2a, Me 2b)。配合物 1b 的分子结构已通过 X