Thomas F. Fässler
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View article: Formation of the Unprecedented [Ge <sub>9</sub> Ga–GaGe <sub>9</sub> ] <sup>4−</sup> Cluster Anion through Nido‐[Ge <sub>9</sub> ] <sup>4−</sup> Cluster Extension with GaCp*
Formation of the Unprecedented [Ge <sub>9</sub> Ga–GaGe <sub>9</sub> ] <sup>4−</sup> Cluster Anion through Nido‐[Ge <sub>9</sub> ] <sup>4−</sup> Cluster Extension with GaCp* Open
From a reaction of K 4 Ge 9 , GaCp*, and [18]crown‐6 in ethylenediamine, the new compound [K([18]crown‐6)] 4 [Ga 2 Ge 18 ]·4en has been obtained, containing the novel [Ge 9 Ga–GaGe 9 ] 4− cluster anion. The compound crystallizes in space g…
View article: Synthesis, Crystal Structure, Raman, and Magnetic Properties of Li<sub>4</sub>Sr<sub>2</sub>Mn<sub>2</sub>P<sub>4</sub>
Synthesis, Crystal Structure, Raman, and Magnetic Properties of Li<sub>4</sub>Sr<sub>2</sub>Mn<sub>2</sub>P<sub>4</sub> Open
Recently the crystal chemistry of ternary and quaternary lithium phosphide‐trielates and phosphide‐tetrelates has been investigated due to the remarkable lithium ion conductivity of some representatives. Herein, the extension of the quarte…
View article: Boosting the Lithium-Ion Conductivity in Li<sub>7</sub>TaP<sub>4</sub> by Aliovalent Li versus Ta Substitution by Three Orders of Magnitude
Boosting the Lithium-Ion Conductivity in Li<sub>7</sub>TaP<sub>4</sub> by Aliovalent Li versus Ta Substitution by Three Orders of Magnitude Open
Lithium-ion conductors are one of the key features of all-solid-state lithium-ion batteries. To modify their properties and enable their implementation in high-performance devices, an understanding of the relationship between the crystal s…
View article: Li <sub>5−</sub> <i> <sub>x</sub> </i> Sr <sub>2</sub> Al <sub>1−</sub> <i> <sub>x</sub> </i> Si <i> <sub>x</sub> </i> P <sub>4</sub> and the Influence of Void Filling with Li in the <i>hcp</i> Array of P Atoms on the Ionic Conductivity for <i>x</i> = 0 and 1 as well as Li <sub>2</sub> Sr <sub>2</sub> Al <sub>2</sub> P <sub>4</sub>
Li <sub>5−</sub> <i> <sub>x</sub> </i> Sr <sub>2</sub> Al <sub>1−</sub> <i> <sub>x</sub> </i> Si <i> <sub>x</sub> </i> P <sub>4</sub> and the Influence of Void Filling with Li in the <i>hcp</i> Array of P Atoms on the Ionic Conductivity for <i>x</i> = 0 and 1 as well as Li <sub>2</sub> Sr <sub>2</sub> Al <sub>2</sub> P <sub>4</sub> Open
Lithium‐rich ternary lithium phosphides have proven to be good model systems for ionic conductivity, achieving lithium‐ion conductivities up to 4.5 mS/cm (ω‐Li 9 GaP 4 ). Compounds in which lithium is partially substituted by alkaline‐eart…
View article: Ni‐Metalated Ge <sub>9</sub> <i>Zintl</i> Clusters as Single‐Site Homogeneous Catalysts
Ni‐Metalated Ge <sub>9</sub> <i>Zintl</i> Clusters as Single‐Site Homogeneous Catalysts Open
Homogeneous catalytic reactions performed without or with highly abundant transition metals is an increasing field of research due to cost‐effectiveness and sustainability. Therefore, using main group element Zintl cluster as support mater…
View article: Scandium Induced Structural Disorder and Vacancy Engineering in Li<sub>3</sub>Sb – Superior Ionic Conductivity in Li<sub>3−3</sub><i><sub>x</sub></i>Sc<i><sub>x</sub></i>Sb
Scandium Induced Structural Disorder and Vacancy Engineering in Li<sub>3</sub>Sb – Superior Ionic Conductivity in Li<sub>3−3</sub><i><sub>x</sub></i>Sc<i><sub>x</sub></i>Sb Open
Solid‐state electrolytes are indispensable for all‐solid‐state batteries. Sulfide‐based solid electrolytes, such as Li 10 M P 2 S 12 ( M = Ge, Sn) and Li 6 PS 5 X ( X = Cl, Br, I), exhibit excellent ionic conductivities, with the fastest L…
View article: The Role of Lithium Ions on the Solubility of K <sub>4</sub> <i>E</i> <sub>4</sub> in Ethylenediamine and the Oxidation of the Zintl Anions [E <sub>4</sub> ] <sup>4−</sup> ( <i>E</i> = Ge, Sn, Pb) as well as [Ge <sub>9</sub> ] <sup>4−</sup>
The Role of Lithium Ions on the Solubility of K <sub>4</sub> <i>E</i> <sub>4</sub> in Ethylenediamine and the Oxidation of the Zintl Anions [E <sub>4</sub> ] <sup>4−</sup> ( <i>E</i> = Ge, Sn, Pb) as well as [Ge <sub>9</sub> ] <sup>4−</sup> Open
Zintl phases are excellent precursors for nine atom [ E 9 ] 4− clusters, which are readily accessible by dissolution of A 4 E 9 phases ( A = Na–Rb; E = Ge–Pb) in ethylenediamine ( en ). In contrast, the binary alkali‐metal tetrel phases of…
View article: Fast Sodium Ion Conductivity in Pristine Na<sub>8</sub>SnP<sub>4</sub>: Synthesis, Structure and Properties of the Two Polymorphs LT‐Na<sub>8</sub>SnP<sub>4</sub> and HT‐Na<sub>8</sub>SnP<sub>4</sub>
Fast Sodium Ion Conductivity in Pristine Na<sub>8</sub>SnP<sub>4</sub>: Synthesis, Structure and Properties of the Two Polymorphs LT‐Na<sub>8</sub>SnP<sub>4</sub> and HT‐Na<sub>8</sub>SnP<sub>4</sub> Open
Achieving high ionic conductivities in solid state electrolytes is crucial for the development of efficient all‐solid‐state‐batteries. Considering future availability and sustainability, sodium materials hold promises for an alternative fo…
View article: Fast Sodium Ion Conductivity in Pristine Na<sub>8</sub>SnP<sub>4</sub>: Synthesis, Structure and Properties of the Two Polymorphs LT‐Na<sub>8</sub>SnP<sub>4</sub> and HT‐Na<sub>8</sub>SnP<sub>4</sub>
Fast Sodium Ion Conductivity in Pristine Na<sub>8</sub>SnP<sub>4</sub>: Synthesis, Structure and Properties of the Two Polymorphs LT‐Na<sub>8</sub>SnP<sub>4</sub> and HT‐Na<sub>8</sub>SnP<sub>4</sub> Open
Achieving high ionic conductivities in solid state electrolytes is crucial for the development of efficient all‐solid‐state‐batteries. Considering future availability and sustainability, sodium materials hold promises for an alternative fo…
View article: Ruthenium Decorated Tris-Silylated Germanium Zintl Clusters Featuring an Unexpected Ligand Arrangement
Ruthenium Decorated Tris-Silylated Germanium Zintl Clusters Featuring an Unexpected Ligand Arrangement Open
The incorporation of transition metal atoms into [Ge9] clusters is a widely studied area of Zintl-cluster chemistry. Recently, it was shown that clusters comprising single transition metal atoms in the cluster surface show catalytic proper…
View article: Synthesis, Structure, and Disorder in Na<sub>36</sub>Sn<sub>5</sub><i>Pn</i><sub>18</sub> (<i>Pn</i> = P, Sb)
Synthesis, Structure, and Disorder in Na<sub>36</sub>Sn<sub>5</sub><i>Pn</i><sub>18</sub> (<i>Pn</i> = P, Sb) Open
Solid ion conducting materials are important components for all‐solid‐state batteries. Recently, solid lithium‐ion‐conducting materials with tetrahedral E P 4 units are discovered for E = Si, Ge, Sn, Al, Ga, and In. The increasing demand f…
View article: A Compact Cell for Electrochemical Investigations of Solid-State Materials
A Compact Cell for Electrochemical Investigations of Solid-State Materials Open
View article: Oxidative addition of Si–H bonds to metal-decorated Zintl clusters [Hyp<sub>3</sub>Ge<sub>9</sub>Ir(CO)PR<sub>3</sub>] (R = Ph, <sup><i>p</i></sup>tolyl, Me)
Oxidative addition of Si–H bonds to metal-decorated Zintl clusters [Hyp<sub>3</sub>Ge<sub>9</sub>Ir(CO)PR<sub>3</sub>] (R = Ph, <sup><i>p</i></sup>tolyl, Me) Open
Catalytic reactions with metalated Zintl clusters as catalysts represent a growing research field. In this context the term single-site homogeneous catalyst (SSHoC) has been introduced for this new compound class.
View article: An efficient multi-gram access in a two-step synthesis to soluble, nine-atomic, silylated silicon clusters
An efficient multi-gram access in a two-step synthesis to soluble, nine-atomic, silylated silicon clusters Open
Silicon is by far the most important semiconducting material. However, solution-based synthetic approaches for unsaturated silicon-rich molecules require less efficient multi-step syntheses. We report on a straightforward access to soluble…
View article: Open Sn Framework Structure Hosting Bi Guest atoms–Synthesis, Crystal and Electronic Structure of Na<sub>13</sub>Sn<sub>26</sub>Bi
Open Sn Framework Structure Hosting Bi Guest atoms–Synthesis, Crystal and Electronic Structure of Na<sub>13</sub>Sn<sub>26</sub>Bi Open
The large variety of structures of Zintl phases are generally well understood since their anionic substructures follow bonding rules according to the valence concept. But there are also exceptions, which make the semiconductors especially …
View article: Synthesis, Structure and Catalytic Properties of Hyp<sub>3</sub>[Ge<sub>9</sub>Rh]PPh<sub>3</sub>
Synthesis, Structure and Catalytic Properties of Hyp<sub>3</sub>[Ge<sub>9</sub>Rh]PPh<sub>3</sub> Open
In single‐site homogeneous catalysts (SSHoCs) transition metal atoms are incorporated in the surface of a small homoatomic atom cluster. Within this concept the main group element cluster is considered as innocent support material, while t…
View article: Large Number of Direct or Pseudo-Direct Band Gap Semiconductors among A3TrPn2 Compounds with A = Li, Na, K, Rb, Cs; Tr = Al, Ga, In; Pn = P, As
Large Number of Direct or Pseudo-Direct Band Gap Semiconductors among A3TrPn2 Compounds with A = Li, Na, K, Rb, Cs; Tr = Al, Ga, In; Pn = P, As Open
Due to the high impact of semiconductors with respect to many applications for electronics and energy transformation, the search for new compounds and a deep understanding of the structure–property relationship in such materials has a high…
View article: Na<sub>3</sub>Ge<sub>2</sub>P<sub>3</sub>: A Zintl Phase Featuring [P<sub>3</sub>Ge–GeP<sub>3</sub>] Dimers as Building Blocks
Na<sub>3</sub>Ge<sub>2</sub>P<sub>3</sub>: A Zintl Phase Featuring [P<sub>3</sub>Ge–GeP<sub>3</sub>] Dimers as Building Blocks Open
Recently, ternary lithium phosphidotetrelates have attracted interest particularly due to their high ionic conductivities, while corresponding sodium and heavier alkali metal compounds have been less investigated. Hence, we report the synt…
View article: An Efficient Multi-Gram Access in a Two-step Synthesis to Soluble Nine-atomic Silylated Silicon Clusters
An Efficient Multi-Gram Access in a Two-step Synthesis to Soluble Nine-atomic Silylated Silicon Clusters Open
Silicon is by far the most important semiconducting material. However, solution-based synthetic approaches for unsaturated silicon-rich molecules require less efficient multi-step syntheses. We report on a straightforward access to soluble…
View article: Electronic Structure Analysis of the <i>A</i><sub>10</sub><i>Tt<sub>2</sub></i>P<sub>6</sub> System (<i>A</i>=Li−Cs; <i>Tt</i>=Si, Ge, Sn) and Synthesis of the Direct Band Gap Semiconductor K<sub>10</sub>Sn<sub>2</sub>P<sub>6</sub>
Electronic Structure Analysis of the <i>A</i><sub>10</sub><i>Tt<sub>2</sub></i>P<sub>6</sub> System (<i>A</i>=Li−Cs; <i>Tt</i>=Si, Ge, Sn) and Synthesis of the Direct Band Gap Semiconductor K<sub>10</sub>Sn<sub>2</sub>P<sub>6</sub> Open
Investigating the relationship between atomic and electronic structures is a powerful tool to screen the wide variety of Zintl phases for interesting (opto−)electronic properties. To get an insight in such relations, the A 10 Tt 2 P 6 syst…
View article: La guerre cognitive vue par le Japon : un concept et une posture récents et situés
La guerre cognitive vue par le Japon : un concept et une posture récents et situés Open
International audience
View article: Direct Band Gap Semiconductors with Two‐ and Three‐Dimensional Triel‐Phosphide Frameworks (Triel=Al, Ga, In)
Direct Band Gap Semiconductors with Two‐ and Three‐Dimensional Triel‐Phosphide Frameworks (Triel=Al, Ga, In) Open
Recently, several ternary phosphidotrielates and ‐tetrelates have been investigated with respect to their very good ionic conductivity, while less focus was pointed towards their electronic structures. Here, we report on a novel series of …
View article: Synthesis, Crystal structure, electronic structure, and Raman spectra of Li<sub>4</sub>Sr<sub>2</sub>SiP<sub>4</sub>
Synthesis, Crystal structure, electronic structure, and Raman spectra of Li<sub>4</sub>Sr<sub>2</sub>SiP<sub>4</sub> Open
Recently, ternary lithium phosphides have been studied intensively owing to their high lithium ion conductivities. During investigations aiming for derivatives with less lithium content the new compound Li 4 Sr 2 SiP 4 was obtained. It cry…
View article: CSD 2121630: Experimental Crystal Structure Determination
CSD 2121630: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 2121624: Experimental Crystal Structure Determination
CSD 2121624: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 2121629: Experimental Crystal Structure Determination
CSD 2121629: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 2121628: Experimental Crystal Structure Determination
CSD 2121628: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CCDC 2171747: Experimental Crystal Structure Determination
CCDC 2171747: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2171746: Experimental Crystal Structure Determination
CCDC 2171746: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: 125 Years Eduard Zintl
125 Years Eduard Zintl Open
Eduard Zintl was a pioneer in this regard in introducing the concept of localized chemical bonds for intermetallic compounds, and he did so with the caution and restraint customary at that time. In the 1930s, he deduced from the radius inc…