New Binary Alkaline Metal Stannides A52Sn82 (A: K, Cs) with Sn44- Zintl and Sn94- Cluster Anions.

ChemInform ◽  
2004 ◽  
Vol 35 (13) ◽  
Author(s):  
Constantin Hoch ◽  
Marco Wendorff ◽  
Caroline Roehr
Keyword(s):  
Cluster Anions ◽  
Alkaline Metal ◽  
Binary Alkaline

Supramolecular Assembly of U(IV) Clusters and Superatoms

2020 ◽  
Author(s):  
Ian Colliard ◽  
Gregory Morrosin ◽  
Hans-Conrad zur Loye ◽  
May Nyman
Keyword(s):  
Quantum Dots ◽  
Supramolecular Assembly ◽  
Emergent Properties ◽  
Organic Media ◽  
Body Centered Cubic ◽  
Cluster Anions ◽  
Charge Balance ◽  
Interpenetrating Networks ◽  
Hierarchical Assembly ◽  
Two Parameters

Superatoms are nanometer-sized molecules or particles that can form ordered lattices, mimicking their atomic counterparts. Hierarchical assembly of superatoms gives rise to emergent properties in superlattices of quantum-dots, p-block clusters, and fullerenes. Here, we introduce a family of uranium-oxysulfate cluster anions whose hierarchical assembly in water is controlled by two parameters; acidity and the countercation. In acid, larger Ln<sup>III</sup> (Ln=La-Ho) link hexamer (U<sub>6</sub>) oxoclusters into body-centered cubic frameworks, while smaller Ln<sup>III</sup> (Ln=Er-Lu &Y) promote linking of fourteen U<sub>6</sub>-clusters into hollow superclusters (U<sub>84</sub> superatoms). U<sub>84</sub> assembles into superlattices including cubic-closest packed, body-centered cubic, and interpenetrating networks, bridged by interstitial countercations, and U<sub>6</sub>-clusters. Divalent transition metals (TM=Mn<sup>II </sup>and Zn<sup>II</sup>), with no added acid, charge-balance and promote the fusion of 10 U<sub>6</sub> and 10 U-monomers into a wheel–shaped cluster (U<sub>70</sub>). Dissolution of U<sub>70</sub> in organic media reveals (by small-angle Xray scattering) that differing supramolecular assemblies are accessed, controlled by TM-linking of U<sub>70</sub>-clusters. <br>

SYNTHESIS AND STRUCTURE OF TWO NOVEL METAL-ORGANIC FRAMEWORKS BASED ON CLUSTER ANIONS [Re6Se8(CN)6]4–, CATIONS Tb3+, AND ISONICOTINATE ANIONS

2020 ◽  
Vol 61 (10) ◽  
pp. 1630-1638
Author(s):  
Yu. M. Litvinova ◽  
Ya. M. Gayfulin ◽  
D. G. Samsonenko ◽  
P. V. Dorovatovsky ◽  
V. A. Lazarenko ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Cluster Anions ◽  
Metal Organic

scholarly journals Synthesis and post-annealing effects of alkaline-metal-ethylenediamine-intercalated superconductors A(C2H8N2) Fe2−Se2 (A= Li, Na) with Tc= 45 K

2014 ◽  
Vol 504 ◽  
pp. 8-11 ◽  
Author(s):  
Takashi Noji ◽  
Takehiro Hatakeda ◽  
Shohei Hosono ◽  
Takayuki Kawamata ◽  
Masatsune Kato ◽  
...  
Keyword(s):  
Alkaline Metal ◽  
Post Annealing ◽  
Annealing Effects

Ionic Liquids Containing Boron Cluster Anions

2009 ◽  
Vol 48 (3) ◽  
pp. 889-901 ◽  
Author(s):  
Mark Nieuwenhuyzen ◽  
Kenneth R. Seddon ◽  
Francesc Teixidor ◽  
Alberto V. Puga ◽  
Clara Viñas
Keyword(s):  
Ionic Liquids ◽  
Cluster Anions ◽  
Boron Cluster

Synthesis and properties of alkaline metal complexes with new overcrowded β-diketiminato ligands

2007 ◽  
Vol 692 (1-3) ◽  
pp. 44-54 ◽  
Author(s):  
Hirofumi Hamaki ◽  
Nobuhiro Takeda ◽  
Takayuki Yamasaki ◽  
Takahiro Sasamori ◽  
Norihiro Tokitoh
Keyword(s):  
Metal Complexes ◽  
Alkaline Metal
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