[Sm6O4(cbz)10(thf)6]·2C7H8: A Polynuclear Samarium Oxo Cluster Obtained from Carbazole-Driven Oxidation of Samarium Nanoparticles.
[Sm6O4(cbz)10(thf)6]·2C7H8: A Polynuclear Samarium Oxo Cluster Obtained from Carbazole-Driven Oxidation of Samarium Nanoparticles.
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DOI：
10.1021/acs.inorgchem.1c03238
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发表时间：
2022-02
影响因子：
4.6
通讯作者：
Daniel Bartenbach;R. Popescu;D. Gerthsen;C. Feldmann
中科院分区：
文献类型：
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作者：
Daniel Bartenbach;R. Popescu;D. Gerthsen;C. Feldmann
以零价钐纳米粒子（1.7 ± 0.2 nm）为原料，制备了新型多核钐氧簇合物[Sm 6 O 4（cbz）10（thf）6]·2C 7 H8单晶。该反应通过在50 °C下在四氢呋喃（THF）中用咔唑（CbzH）氧化，随后在甲苯（C7 H8）中结晶来进行。氧簇含有不带电的分子单元与中央Sm 6 O 4核心。单晶结构分析和红外光谱证实了CbzH的氧化，形成（cbz）-。多核咔唑配合物通常是罕见的，这里首次使用金属纳米颗粒作为反应性起始材料制备。与CbzH作为空间要求高的配体的反应示例性地显示了稀土金属纳米颗粒用于获得具有复杂组成和结构的新化合物的可行性。
Zerovalent samarium nanoparticles (1.7 ± 0.2 nm in size) are used as the starting material to prepare single crystals of the novel polynuclear samarium oxo cluster [Sm6O4(cbz)10(thf)6]·2C7H8. The reaction is performed by oxidation with carbazole (CbzH) in tetrahydrofuran (THF) at 50 °C with subsequent crystallization in toluene (C7H8). The oxo cluster contains noncharged molecular units with a central Sm6O4 core. Single-crystal structure analysis and infrared spectroscopy confirm the oxidation of CbzH with the formation of (cbz)-. Polynuclear carbazole complexes are generally rare and here prepared using metal nanoparticles as a reactive starting material for the first time. The reaction with CbzH as a sterically demanding ligand exemplarily shows the feasibility of rare-earth-metal nanoparticles for obtaining new compounds with complex composition and structure.