The reactivity of the phosphino-thiosemicarbazone ligand 2-(2-(diphenylphosphino)benzylidene)-N-ethylthiosemicarbazone (HLPEt) toward M(I) halides (M = Cu, Ag, Au) was studied. The complexes obtained, with formulae [Cu(HLPEt)2]Br (1), [Cu(HLPEt)2]I·2H2O (2), [Ag(HLPEt)(LPEt)]·3H2O (3), [Au2(HLPEt)2Cl]Cl·CH3OH (4) were satisfactorily characterized by elemental analysis, IR, ESI and 1H/31P NMR. Moreover, we have obtained the crystal structure of the ligand HLPEt and its sulfide oxidized form HLP(S)Et, which represents a new case of desulfurization process in thiosemicarbazone ligands. In addition, we present the crystal structure of the complexes 1 + H2O + 3MeOH and [Au2(HLPEt)4Cl]Cl·3CH3OH (5), together with their interesting crystal packing. The complex 5 is an interesting case of a pseudo-chloronium gold(I) complex. The ligand HLPEt and the complexes 3 and 4 display intense luminescence at room temperature.
研究了膦-
硫代
氨基
脲配体 2-(2-(
二苯基膦)亚苄基)-N-乙基
硫代
氨基
脲(HLPEt)与 M(I)卤化物(M = Cu、Ag、Au)的反应性。通过元素分析、红外光谱、ESI 和 1H/31P NMR 对所得到的复合物进行了表征,这些复合物的
化学式分别为 [Cu(HLPEt)2]Br (1)、[Cu(HLPEt)2]I-2 (2)、[Ag(HLPEt)(LPEt)]-3 (3)、[Au2(HLPEt)2Cl]Cl-CH3OH (4)。此外,我们还获得了
配体 HLPEt 及其
硫化物氧化形式 HLP(S)Et 的晶体结构,这是
硫代
氨基甲酸配体脱
硫过程的一个新案例。此外,我们还展示了复合物 1 +
H2O + 3MeOH 和 [Au2(HLPEt)4Cl]Cl-3CH3OH (5) 的晶体结构及其有趣的晶体堆积。配合物 5 是一种有趣的伪
氯金(I)配合物。
配体 HLPEt 以及配合物 3 和 4 在室温下会发出强烈的荧光。