Synthesis and structural analysis of lanthanide perfluoropinacolates

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Authors
Sclafani, Dominic J.
Issue Date
2022-05-16
Type
Thesis
Language
en_US
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Undergraduate research. , Undergraduate thesis.
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Abstract
Three new lanthanide perfluoropinacolate complexes ([K(THF)2][Ln(pinF)2(THF)x] (x = 3, Ln = Pr; x = 2, Ln = Tb, Ho)) have been synthesized and their solid-state structures were collected via single crystal X-ray diffractometry. Due to the fluorination of the pinacolate ligands, these complexes could display interesting electrochemical and luminescent properties. The bond angles and lengths of all three complexes were analyzed and it was found that the bond lengths in [K(THF)2][Tb(pinF)2(THF)2] and [K(THF)2][Ho(pinF)2(THF)2] were shorter than in [K(THF)2][Pr(pinF)2(THF)3]. As a result of these shorter bond lengths the bond angles in [K(THF)2][Tb(pinF)2(THF)2] and [K(THF)2][Ho(pinF)2(THF)2] were larger than in the [K(THF)2][Pr(pinF)2(THF)3] complex. This is due to a reduction in the radii of the lanthanide metal center, with praseodymium (Pr) being the largest of the three, terbium (Tb) the second, and holmium (Ho) the smallest, having ionic radii of 99.0 pm, 92.3 pm, and 90.1 pm, respectively.
Description
27 leaves; illustrations.
Includes bibliographical references (leaf 24).
Citation
Sclafani, Dominic J. (2022, May 16). Synthesis and structural analysis of lanthanide perfluoropinacolates. Retrieved from:
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Wheaton College. (Norton, Mass.)
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