Isolation and spectroscopic characterization of new endohedral fullerenes in the size gap of C-74 to C-76

Haufe O; Hecht M; Grupp A; Mehring M; Jansen M

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Isolation and spectroscopic characterization of new endohedral fullerenes in the size gap of C-74 to C-76

机译：C-74至C-76尺寸间隙中新的内膜富勒烯的分离和光谱表征

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New alkaline earth metal endohedral fullerenes Sr@C-74, Sr@C-76-I,II and Ca@C-74, prepared by means of the RF-method, have been isolated using multistep HPLC. The purity was ascertained by anionic LDI TOF mass spectroscopy, considering the isotopic patterns of the compounds. The influence of the incorporated metal on the electronic structure has been studied by VIS-NIR and Raman spectroscopy. Photoexcited triplet-state EPR spectroscopy was used to investigate the structure of these otherwise EPR-silent fullerenes. Displaying the frequency of the cage vs. en-capsulated metal vibrational modes as a function of the square root of the reciprocal masses of the metals clearly separates the M2+@C-n(3)- and the M2+@C-n(2-) families. This seems to be a generally applicable tool for monitoring the metal to fullerene charge transfer.

机译：已经通过多步HPLC分离了通过RF方法制备的新的碱土金属内表面富勒烯SrC-74，SrC-76-I，II和CaC-74。考虑到化合物的同位素模式，通过阴离子LDI TOF质谱法确定了纯度。 VIS-NIR和拉曼光谱研究了掺入金属对电子结构的影响。光激发三重态EPR光谱用于研究这些EPR沉默的富勒烯的结构。显示笼形频率与封装的金属振动模式的关系是金属的倒数的平方根的函数，清楚地将M2 + @ C-n（3）-和M2 + @ C-n（2-）族分开。这似乎是监测金属到富勒烯电荷转移的通用工具。

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《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2005年第1期|共5页
作者
Haufe O; Hecht M; Grupp A; Mehring M; Jansen M;
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正文语种 eng
中图分类化学;
关键词
fullerenes; UV/Vis spectroscopy; Raman spectroscopy; EPR spectroscopy; SPHEROIDAL CARBON SHELLS; METALLOFULLERENES; TM-AT-C-82; COMPLEXES; RAMAN;

机译：富勒烯;紫外/可见光谱;拉曼光谱;EPR光谱;球状碳壳;金属富勒烯;TM-AT-C-82;络合物;拉曼;

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1. Isolation and spectroscopic characterization of new endohedral fullerenes in the size gap of C-74 to C-76 [J] . Haufe O, Hecht M, Grupp A, Zeitschrift fur Anorganische und Allgemeine Chemie . 2005,第1期

机译：C-74至C-76尺寸间隙中新的内膜富勒烯的分离和光谱表征
2. X-ray Crystallographic Characterization of New Soluble Endohedral Fullerenes Utilizing the Popular C_(82) Bucky Cage. Isolation and Structural Characterization of Sm@C_(3v)(7)-C_(82), Sm@Cs(6)-C_(82), and Sm@ C_2(5)-C_(82) [J] . Hua Yang, Hongxiao Jin, Xinqing Wang, Journal of the American Chemical Society . 2012,第34期

机译：利用流行的C_（82）Bucky笼子的新型可溶性内表面富勒烯的X射线晶体学表征。 Sm @ C_（3v）（7）-C_（82），Sm @ Cs（6）-C_（82）和Sm @ C_2（5）-C_（82）的分离和结构表征
3. Synthesis and Isolation of the Titanium-Scandium Endohedral Fullerenes-Sc2TiC@I-h-C-80, Sc2TiC@D-5h-C-80 and Sc2TiC2@I-h-C-80: Metal Size Tuning of the Ti-IV/Ti-III Redox Potentials [J] . Junghans Katrin, Ghiassi Kamran B., Samoylova Nataliya A., Chemistry: A European journal . 2016,第37期

机译：钛-End内表面富勒烯-Sc2TiC @ I-h-C-80，Sc2TiC @ D-5h-C-80和Sc2TiC2 @ I-h-C-80的合成与分离：Ti-IV / Ti-III氧化还原电位的金属尺寸调节
4. Synthesis, isolation and characterization of new alkaline earth endohedral fullerenes M@C{sub}n(M=Ca,Sr,n=74,76) [C] . A. Grupp, O. Haufe, M. Jansen, International Winterschool on Electronic Properties of Novel Materials . 2002

机译：新碱土地球EndohEtral富勒烯M×C {Sub} n（m = Ca，Sr，n = 74,76）的合成，分离和表征
5. Laser spectroscopic studies of fullerenes, fullerene derivatives and erbium endohedral metallofullerenes. [D] . Ding, Xiaoya. 1997

机译：富勒烯，富勒烯衍生物和内表面金属富勒烯的激光光谱研究。
6. Synthesis and Isolation of the Titanium–Scandium Endohedral Fullerenes—Sc2TiC@Ih‐C80 Sc2TiC@D5h‐C80 and Sc2TiC2@Ih‐C80: Metal Size Tuning of the TiIV/TiIII Redox Potentials [O] . Katrin Junghans, Dr. Kamran B. Ghiassi, Nataliya A. Samoylova, -1

机译：钛-Scan内表面富勒烯-Sc2TiC @ Ih-C80Sc2TiC @ D的合成与分离5h-C80和Sc2TiC2 @ Ih-C80：TiIV / TiIII氧化还原电位的金属尺寸调整
7. Isolation and Crystallographic Characterization of Two, Nonisolated Pentagon Endohedral Fullerenes: Ho 3 N@ C 2 (22010)‐C 78 and Tb 3 N@ C 2 (22010)‐C 78 [O] . Steven Stevenson, Amanda J. Rothgeb, Katelyn R. Tepper, 2019

机译：两种，非固体五角形腹端富勒烯的分离和晶体表征：HO 3 N-C 2（22010）-C 78和TB 3 N-C 2（22010）-C 78
8. Endohedral Rare-Earth Fullerene Complexes. (Reannouncement with New AvailabilityInformation) [R] . Gillan, E. G., Yeretzian, C., Min, K. S., 1992

机译：内嵌稀土富勒烯配合物。（新可用性信息的重新通知）

Isolation and spectroscopic characterization of new endohedral fullerenes in the size gap of C-74 to C-76

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