New Neutral and Anionic Alkynylgold(I) Complexes via New Synthetic Methods. Crystal and Molecular Structures of [(PPh3)2N][Au(C 详细信息    查看全文

• 作者：José ; Vicente ; Marí ; a-Teresa Chicote ; Marí ; a-Dolores Abrisqueta ; and Peter G. Jones
• 刊名：Organometallics
• 出版年：1997
• 出版时间：December 23, 1997
• 年：1997
• 卷：16
• 期：26
• 页码：5628 - 5636
• 全文大小：338K
• 年卷期：v.16,no.26(December 23, 1997)
• ISSN：1520-6041

文摘

[(PPh₃)₂N][Au(acac)₂](acac = acetylacetonate) reacts with terminal alkynes RCCHtogive [(PPh₃)₂N][Au(CCR)₂] (R= H, ^tBu, SiMe₃, CH₂X (X =Cl, Br, OH)) complexes. Thereactions between[(PPh₃)₂N][Au(CCH)₂]and [(PPh₃)₂N][AuX₂] (X= Cl, Br, I) give[(PPh₃)₂N][Au(CCH)X]complexes. Neutral mononuclear[Au(CCR)(NHEt₂)] (R =SiMe₃,^tBu), [Au(CCR)(PR'₃)] (R= H, R' = Ph, C₆H₄OMe-4; R =CH₂Cl, CH₂Br, CH₂OH,R' = Cy= cyclohexyl; R = SiMe₃, R' = Ph,C₆H₄OMe-4, Cy; R = ^tBu,R' = Ph, Cy, C₆H₄OMe-4),[Au(CCR)(CN^tBu)] (R =SiMe₃, ^tBu), and[Au(CCR){C(NH^tBu)(NEt₂)}](R = H, SiMe₃,^tBu) or dinuclear[(AuL)₂{-CC(CH₂)₅CC}](L = PPh₃, CN^tBu,C(NH^tBu)(NEt₂)) areobtained via a variety of synthetic methods: (i) reaction between[(PPh₃)₂N][Au(CCH)₂]and [Au(PR₃)₂]ClO₄,(ii) reaction of terminal alkynes with [Au(acac)(L)], (iii)reaction of[AuClL] complexes with terminal alkynes in diethylamine, (iv)substitution reactions (e.g.,[Au(CCR)(NHEt₂)] + PR'₃), (v)reaction of diethylamine with alkynyl isocyanidederivativesto give alkynylcarbene complexes. The crystal structures of[(PPh₃)₂N][Au(CCCH₂OH)₂],[Au(CCSiMe₃)(CN^tBu)], and[Au(CCR)(PR'₃)] (R' = Cy, R =CH₂Cl, CH₂Br; R' = Ph, R=SiMe₃, ^tBu) were determined.