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Stevenson S, Rose CB, Maslenikova JS, et al. Selective synthesis, isolation, and crystallographic characterization of LaSc2N@I(h)-C80. Inorg Chem. 2012;51(24):13096-102doi: 10.1021/ic300888e.
Stevenson, S., Rose, C. B., Maslenikova, J. S., Villarreal, J. R., Mackey, M. A., Mercado, B. Q., Chen, K., Olmstead, M. M., & Balch, A. L. (2012). Selective synthesis, isolation, and crystallographic characterization of LaSc2N@I(h)-C80. Inorganic chemistry, 51(24), 13096-102. https://doi.org/10.1021/ic300888e
Stevenson, Steven, et al. "Selective synthesis, isolation, and crystallographic characterization of LaSc2N@I(h)-C80." Inorganic chemistry vol. 51,24 (2012): 13096-102. doi: https://doi.org/10.1021/ic300888e
Stevenson S, Rose CB, Maslenikova JS, Villarreal JR, Mackey MA, Mercado BQ, Chen K, Olmstead MM, Balch AL. Selective synthesis, isolation, and crystallographic characterization of LaSc2N@I(h)-C80. Inorg Chem. 2012 Dec 17;51(24):13096-102. doi: 10.1021/ic300888e. Epub 2012 Dec 06. PMID: 23214426.
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Inorg Chem. 2012 Dec 17;51(24):13096-102. doi: 10.1021/ic300888e. Epub 2012 Dec 06.

Selective synthesis, isolation, and crystallographic characterization of LaSc2N@I(h)-C80.

Inorganic chemistry

Steven Stevenson, Coralie B Rose, Juliya S Maslenikova, Jimmy R Villarreal, Mary A Mackey, Brandon Q Mercado, Kelly Chen, Marilyn M Olmstead, Alan L Balch

Affiliations

  1. Department of Chemistry, Indiana Purdue University at Fort Wayne (IPFW), 2101 E. Coliseum Blvd., Fort Wayne, Indiana 46805, United States. [email protected]

PMID: 23214426 DOI: 10.1021/ic300888e

Abstract

The successful preparation and isolation of the mixed-metal endohedral fullerene, LaSc(2)N@I(h)-C(80), and its structural characterization by single-crystal X-ray diffraction are reported. Results from chemically adjusting plasma temperature, energy, and reactivity (CAPTEAR) experiments indicate that a 10 wt % addition of Cu(NO(3))(2)·2.5H(2)O to a mixture of La(2)O(3) and Sc(2)O(3) decreases the amount of C(60) and C(70) found in soot extracts by an order of magnitude. By combining a stoichiometric 2-fold excess of La to Sc atoms in the plasma reactor, an extract containing a greater abundance of LaSc(2)N@I(h)-C(80) relative to Sc(3)N@I(h)-C(80) was obtained. Alternatively, the stir and filter approach (SAFA method) can be used to remove the empty cage fullerenes from a carbon soot sample prepared without using Cu(NO(3))(2)·2.5H(2)O. LaSc(2)N@I(h)-C(80) has been characterized by UV/vis absorption spectroscopy and by single-crystal X-ray diffraction. Ordered crystals with nearly identical orientations of the endohedral relative to the porphyrin have been obtained by cocrystallization of LaSc(2)N@I(h)-C(80) with either Ni(II)(OEP) or H(2)(OEP). The LaSc(2)N unit is planar, although earlier computations suggested that it would be pyramidal.

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