Study of New Ternary Rare-Earth Intermetallic Germanides with Polar Covalent Bonding
Beyond the Zintl Picture
(Sprache: Englisch)
The thesis focuses on the syntheses, structural characterizations and chemical bonding analyses for several ternary R-M-Ge (R = rare earth metal; M = another metal) intermetallics. The challenges in understanding the main interactions governing the...
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The thesis focuses on the syntheses, structural characterizations and chemical bonding analyses for several ternary R-M-Ge (R = rare earth metal; M = another metal) intermetallics. The challenges in understanding the main interactions governing the chemistry of these compounds, which lead to our inability to predict their formation, structure and properties, are what provided the motivation for this study. In particular, the R2MGe6 (M = Li, Mg, Al, Cu, Zn, Pd, Ag), R4MGe10-x (M = Li, Mg), R2Pd3Ge5, Lu5Pd4Ge8, Lu3Pd4Ge4 and Yb2PdGe3 phases were synthesized and structurally characterized. Much effort was put into the stabilization of metastable phases, employing the innovative metal flux method, and into the accurate structure solution of twinned crystals. Cutting-edge position-space chemical bonding techniques were combined with newmethodologies conceived to correctly describe the Ge-M, Ge-La and also La-M polar-covalent interactions for the La2MGe6 (M = Li, Mg, Al, Cu, Zn, Pd, Ag) series. The present results constitute a step forward in our comprehension of ternary germanide chemistry as well as providing a good playground for further investigations.Inhaltsverzeichnis zu „Study of New Ternary Rare-Earth Intermetallic Germanides with Polar Covalent Bonding “
Introduction.- Experimental Methods.- Theoretical Methods.- The R2MGe6 (R = rare earth metal; M = another metal) Compounds: An Experimental and Theoretical Study on Their Synthesis, Crystal Structure and Chemical Bonding.- On the Existence, Crystal Structure and Physical Properties of R2Pd3Ge5 (R = rare earth metal) Intermetallic Germanides.- Lu5Pd4Ge8, Lu3Pd4Ge4 and Yb2PdGe3: Three More Germanides among Polar Intermetallics.
Autoren-Porträt von Riccardo Freccero
Riccardo Freccero received his M.Sc. and Ph.D. in Chemistry at the University of Genoa, Italy, in 2015 and 2018, respectively. The Ph.D. thesis was performed under the supervision of Prof. Adriana Saccone (University of Genoa) and Dr. Frank R. Wagner (Max Planck Institute for Chemical Physics of Solids, Dresden, Germany - MPI-CPfS), focusing on the synthesis, crystal structure determination and chemical bonding analysis of ternary intermetallic germanides. He is now working as a post-doctoral researcher in the ChemBond group of the Chemical Metals Science department, headed by prof. Yuri Grin, at the MPI-CPfS.
Bibliographische Angaben
- Autor: Riccardo Freccero
- 2020, 1st ed. 2020, XXI, 221 Seiten, 32 farbige Abbildungen, Masse: 16,3 x 24 cm, Gebunden, Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3030589919
- ISBN-13: 9783030589912
Sprache:
Englisch
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