Trigonal bipyramidal (TBP) iridium(I) complexes o-(Ph2P)C6H4}3EIr(CO) (E = Si: 1-Ir, Ge: 2-Ir, Sn: 3-Ir) comprising group 14 element E were synthesized and converted into the corresponding cationic iridium(III) complexes [o-(Ph2P)C6H4}3EIr(H)(CO)][BF4] (E = Si: 4, Ge: 5, Sn: 6) bearing octahedral geometry by protonation using (Et2OH)(BF4). The origin of trans-labilizing abilities of E was investigated through structural analysis, IR and NMR spectroscopic analysis, and density functional theory calculations. Further, the electron-donating abilities of E were investigated through proton transfer reactions.
合成了包含第 14 族元素 E 的三角双锥 (
TBP)
铱 (I) 配合物 o-(Ph2P)
C6H4}3EIr(CO) (E = Si: 1-Ir, Ge: 2-Ir, Sn: 3-Ir)并转化为相应的具有八面体几何结构的阳离子
铱(III)络合物[o-(Ph2P) }3EIr(H)(CO)][ ] (E = Si: 4, Ge: 5, Sn: 6)使用 (Et2OH)(
BF4) 进行质子化。通过结构分析、红外和核磁共振光谱分析以及密度泛函理论计算,研究了 E 反式稳定能力的起源。此外,通过质子转移反应研究了E的给电子能力。