Activation of Group 14 El−H Bonds at Platinum(0)
Activation of Group 14 El−H Bonds at Platinum(0)
复制标题
铂金级 14 El−H 债券的激活(0)
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
N. Rath
中科院分区：
文献类型：
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作者：
C. White;J. Braddock;J. Y. Corey;Huan Xu;E. Redekop;and Sergey Sedinkin;N. Rath
无环氢化锗烷[Ar 2GeH 2; Ar = Ph（1），Mes（8）]和氢化锡烷（Ph 2SnH 2，5）与Pt（0）前体（Ph 3 P）2 Pt（η2-C2 H4）（2）反应。在这些反应中形成单核配合物（Ph 3 P）2 Pt（H）（GePh 2 H）（3）、（Ph 3 P）2 Pt（H）（SnPh 2 H）（6）和（Ph 3 P）2 Pt（H）（GeMes 2 H）（9）以及双核配合物[（Ph 3 P）Pt（μ-η-H-GePh 2）]2（4）和[（Ph 3 P）2（H）Pt（μ-SnPh 2）（μ-η2-H-SnPh 2）Pt（PPh 3）]（7）。制备了环状前体9，9-二氢锗芴（Ar_2GeH_2; Ar_2 = C_1_2H_8，10），并与（Ph_3P）_2Pt（η_2-C_2H_4）反应。单核、双核和三核铂锗产品，（Ph 3 P）2 Pt（H）[Ge（C12 H8）H]（11）、（Ph 3 P）2 Pt [Ge（C12 H8）H]2（14）、[（Ph 3 P）2（H）Pt（C12 H8 GeGeC 12 H8）Pt（H）（PPh 3）2]（12）、[（Ph 3 P）2（H）Pt（μ-GeC 20 H24）（μ-m2-H-GeC 20 H24）Pt（PPh 3）]（15）和[（Ph 3 P）Pt（μ-GeC 12 H8）]3（13）被鉴定为反应产物。含有Si-Pt、Ge-Pt和Sn-Pt键的配合物也是通过从双核配合物[（Ph 3 P）2（H）Pt（μ-SiC 20 H24）（μ-η2-H-SiC 20 H24）Pt（PPh 3）]（16）开始的交换反应形成的。
Acyclic hydrogermanes [Ar2GeH2; Ar = Ph (1), Mes (8)] and a hydrostannane (Ph2SnH2, 5) were reacted with the Pt(0) precursor (Ph3P)2Pt(η2-C2H4) (2). The mononuclear complexes (Ph3P)2Pt(H)(GePh2H) (3), (Ph3P)2Pt(H)(SnPh2H) (6), and (Ph3P)2Pt(H)(GeMes2H) (9) and the dinuclear complexes [(Ph3P)Pt(μ-η-H-GePh2)]2 (4) and [(Ph3P)2(H)Pt(μ-SnPh2)(μ-η2-H-SnPh2)Pt(PPh3)] (7) were formed in these reactions. The cyclic precursor 9,9-dihydrogermafluorene (Ar2GeH2; Ar2 = C12H8, 10) was prepared and also reacted with (Ph3P)2Pt(η2-C2H4). Mono-, di-, and trinuclear platinum−germanium products, (Ph3P)2Pt(H)[Ge(C12H8)H] (11), (Ph3P)2Pt[Ge(C12H8)H]2 (14), [(Ph3P)2(H)Pt(C12H8GeGeC12H8)Pt(H)(PPh3)2] (12), [(Ph3P)2(H)Pt(μ-GeC20H24)(μ-η2-H-GeC20H24)Pt(PPh3)] (15), and [(Ph3P)Pt(μ-GeC12H8)]3 (13), were identified as products from the reaction. Complexes containing Si−Pt, Ge−Pt, and Sn−Pt bonds were also formed via an exchange reaction starting from the dinuclear complex [(Ph3P)2(H)Pt(μ-SiC20H24)(μ-η2-H−SiC20H24)Pt(PPh3)] (16) and...