Innenrücktitelbild: Multinuclear Ag Clusters Sandwiched by Pt Complex Units: Fluxional Behavior and Chiral‐at‐Cluster Photoluminescence (Angew. Chem. 19/2021)

AbstractUsing a combination of genetic algorithms for the unbiased structure optimization and a Gupta many-body potential for the calculation of the energetic properties of a given structure, we determine the putative total-energy minima for all $$\hbox {Ag}_{m} \hbox {Rh}_n$$ Ag m Rh n clusters with a total number of atoms $$m+n$$ m + n up to 55. Subsequently, we use various descriptors to analyze the obtained structural and energetic properties. With the help of a similarity function, we show that the pure Ag and Rh clusters are structurally similar for sizes up to around 20 atoms. The same approach gives that the mixed clusters tend to possess a larger structural similarity with the pure Rh clusters than with the pure Ag clusters. However, for clusters with $$m\simeq n\ge 25$$ m ≃ n ≥ 25 , other structures dominate. The effective coordination numbers for the Ag and Rh atoms as well as the radial distributions of those atoms indicate that there is a tendency towards segregation with Rh atoms forming an inner part and the Ag atoms forming a shell. Only few clusters, all with a fairly large total number of atoms, are found to be particularly stable.

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Hierarchical architectures of Ag clusters deposited biomimetic membrane: Synthesis, emulsion separation, catalytic and antibacterial performance

Separation and Purification Technology ◽

10.1016/j.seppur.2020.116733 ◽

2020 ◽

Vol 241 ◽

pp. 116733 ◽

Cited By ~ 8

Author(s):

Na Liu ◽

Xiangyu Li ◽

Jiakai Li ◽

Yingze Cao ◽

Lin Feng

Keyword(s):

Membrane Synthesis ◽

Antibacterial Performance ◽

Emulsion Separation ◽

Ag Clusters ◽

Biomimetic Membrane ◽

Hierarchical Architectures

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Oxamide Oxime Complexes: The Structure of the Complex Bis ( oxamide - oximato )nickel( II) - Hydrogen Chloride - Water, and the Characterization of the Analogous Platinum(II) Complex

Zeitschrift für Naturforschung B ◽

10.1515/znb-1982-0607 ◽

1982 ◽

Vol 37 (6) ◽

pp. 702-706 ◽

Cited By ~ 3

Author(s):

Helmut Entires

Keyword(s):

Hydrogen Chloride ◽

Structure Determination ◽

Columnar Structure ◽

Orthorhombic Symmetry ◽

Complete Structure ◽

Complex Molecules ◽

Planar Complex ◽

Pt Complex ◽

Chloride Water

Abstract[Ni(C2H5N4O2)2] · HCl · H2O, C4H10N8NiO4 · HCl · H2O, forms triclinic crystals, Mr = 347.36, P1̄, a = 7.219(2), b = 7.316(1), c = 11.797(3) Å, α = 73.89(2), β = 86.37(2), γ = 85.71(2)°, V = 596 Å3 , Z = 2, dc = 1.93 Mgm-3 ; final Rw = 0.028 for 1957 reflections. The planar complex molecules form equidistant stacks along b, with the molecular planes inclined at ~29° to the stacking axis. Molecules of adjacent stacks are linked along a by an intermolecular H bridge coexistins with the usual intramolecular H bridges. The analogous Pt complex, C4H10N8O4Pt · HCl · H2O, Mr = 483.74, a = 6.480(4), b = 16.115(5), c = 12.194(9) Å, β = 101.27(4)°, V = 1249 Å3 , Z = 4, dc = 2.57 Mgm-3 , P21/a, crystallizes in a columnar structure with a Pt-Pt separation of ~a/2 ≈ 3.24 Å. Due to twinning, faking orthorhombic symmetry, a complete structure determination was not possible.

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