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通过激光烧蚀铂原子使甲烷进行氧化C-H插入反应制备的固态氩中CH₃-PtH络合物的红外光谱。

Infrared spectrum of the CH3-PtH complex in solid argon prepared in the oxidative C-H insertion of methane by laser-ablated Pt atoms.

作者信息

Cho Han-Gook, Andrews Lester

出版信息

J Phys Chem A. 2008 Dec 4;112(48):12293-5. doi: 10.1021/jp8088325.

DOI:10.1021/jp8088325
PMID:19006283
Abstract

Reactions of laser-ablated Pt atoms with CH(4) during condensation in excess argon form CH(3)-PtH through oxidative C-H insertion show and that the late transition-metal atom Pt is an effective methane activation reagent, in agreement with gas phase investigations. Six observed infrared absorptions correlate with the six strongest calculated harmonic frequencies. The computed C-Pt bond length is slightly shorter than those of Pt complexes with large ligands. In addition, the strongest absorption of the CH(2)=PtH(2) methylidene is detected.

摘要

在过量氩气中冷凝期间，激光烧蚀的铂原子与甲烷反应通过氧化C-H插入形成CH₃-PtH，这表明晚期过渡金属原子铂是一种有效的甲烷活化试剂，这与气相研究结果一致。观察到的六个红外吸收与计算出的六个最强谐波频率相关。计算出的C-Pt键长略短于具有大配体的铂配合物的键长。此外，还检测到了CH₂=PtH₂亚甲基的最强吸收。

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