Synthesis, chemical, and electrochemical characterization of the [Ag13{?3-Fe(CO)4}] n? (n = 3, 4, 5) cluster anions: X-Ray structural determination of [N(PPh3)2]3 [Ag12(?12-Ag){?3Fe(CO)4}8]1

Albano, Vincenzo G.; Calderoni, Francesca; Iapalucci, Maria Carmela; Longoni, Giuliano; Monari, Magda; Zanello, Piero

doi:10.1007/bf01175839

Cited by 31 publications

(29 citation statements)

References 18 publications

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“…[44] This structure is indeed quite prevalent in a number of previously reported bimetal or trimetal M 25 . [45,46] It is worth noting that, between M 13 and M 25 9 ] have been reported, which show an interpenetrated biicosahedral structure. [47] Interestingly, the [Au 39 A C H T U N G T R E N N U N G (PPh 3 ) 14 Cl 6 ]Cl 2 nanocluster does not follow the icosahedral motif, [46] instead, it shows a multiple layered structure (1:9:9:1:9:9:1), resembling bulk Au.…”

Section: Structures Of Ligand-protected Au N Nanoclustersmentioning

confidence: 97%

“…Unfortunately, thus far there has been no report on such a Au 13 structure, though its silver counterpart-cuboctahedral Ag 13 capped by eight Fe(CO) 4 motifs-has indeed been reported. [9] Moreover, a cuboctahedral Au 12 cage was found in [Au 12 S 8 ] 4 + complexes with a linear S-Au-S motif. [10] For ligand-protected Au 13 clusters, Nature indeed prefers an icosahedral structure, rather than the cuboctahedron.…”

Section: Transformation From Fcc Crystalline Structure To Icosahedralmentioning

confidence: 98%

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Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Jin

Zhu

2011

Chemistry A European J

145

116

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This Concept article provides an elementary discussion of a special class of large-sized gold compounds, so-called Au nanoclusters, which lies in between traditional organogold compounds (e.g., few-atom complexes, <1 nm) and face-centered cubic (fcc) crystalline Au nanoparticles (typically >2 nm). The discussion is focused on the relationship between them, including the evolution from the Au⋅⋅⋅Au aurophilic interaction in Au(I) complexes to the direct Au-Au bond in clusters, and the structural transformation from the fcc structure in nanocrystals to non-fcc structures in nanoclusters. Thiolate-protected Au(n)(SR)(m) nanoclusters are used as a paradigm system. Research on such nanoclusters has achieved considerable advances in recent years and is expected to flourish in the near future, which will bring about exciting progress in both fundamental scientific research and technological applications of nanoclusters of gold and other metals.

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Section: Structures Of Ligand-protected Au N Nanoclustersmentioning

confidence: 97%

Section: Transformation From Fcc Crystalline Structure To Icosahedralmentioning

confidence: 98%

Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Jin

Zhu

2011

Chemistry A European J

145

116

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“…Molecular structures of some representative (a–c) 2-D clusters and (d, e) 3-D clusters. (a) [M 3 Fe 3 (CO) 12 ] 3– (M = Cu, Ag, Au), , (b) [M 4 Fe 4 (CO) 16 ] 4– (M = Ag, Au), , (c) [M 5 Fe 4 (CO) 16 ] 3– (M = Cu, Ag, Au), ,, (d) [Ag 13 Fe 8 (CO) 32 ] 3– , , (e) [Au 28 {Fe(CO) 3 } 4 {Fe(CO) 4 } 10 ] 8– …”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structural Characterization, and DFT Investigations of [M_xM′_5–xFe₄(CO)₁₆]^3– (M, M′ = Cu, Ag, Au; M ≠ M′) 2-D Molecular Alloy Clusters

et al. 2020

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Miscellaneous 2-D molecular alloy clusters of the type [M x M′ 5−x Fe 4 (CO) 16 ] 3− (M, M′ = Cu, Ag, Au; M ≠ M′) have been prepared through the reactions of [Cu 3 Fe 3 (CO) 12 ] 3− , [Ag 4 Fe 4 (CO) 16 ] 4− or [M 5 Fe 4 (CO) 16 ] 3− (M = Cu, Ag) with M′(I) salts (M′ = Cu, Ag, Au). Their formation involves a combination of oxidation, condensation, and substitution reactions. The total structures of several [M x M′ 5−x Fe 4 (CO) 16 ] 3− clusters with different compositions have been determined by means of single crystal Xray diffraction (SC-XRD) and their nature in solution elucidated by electron spray ionization mass spectrometry (ESI-MS) and IR and UV−visible spectroscopy. Substitutional and compositional disorder is present in the solid state structures, and ESI-MS analyses point out that mixtures of isostructural clusters differing by a few M/M′ coinage metals are present. SC-XRD studies indicate some site preferences of the coinage metals within the metal cores of these clusters, with Au preferentially in corner sites and Cu in the central site.DFT studies give theoretical support to the experimental structural evidence. The site preference is mainly dictated by the strength of the Fe−M bonds that decreases in the order Fe−Au > Fe−Ag > Fe−Cu, and the preferred structure is the one that maximizes the number of stronger Fe−M interactions. Overall, the molecular nature of these clusters allows their structures to be fully revealed with atomic precision, resulting in the elucidation of the bonding parameters that determine the distribution of the different metals within their metal cores.

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“…To preserve electroneutrality, one cluster in the unit cell is presented as a dianion, whereas the other two are presented as trianions. Their charge cannot be unambiguously inferred from their individual molecular parameters: for the same species, one should expect a slight swelling of the cluster with a higher negative charge 13. However, this is not the case, probably because the cluster ions are very soft and the distances are as much influenced by the charge as by the crystal packing.…”

Section: Resultsmentioning

confidence: 99%

The Chemistry of Ni–Sb Carbonyl Clusters – Synthesis and Characterization of the [Ni₁₉Sb₄(CO)₂₆]^4– Tetraanion and the Viologen Salts of [Ni₁₃Sb₂(CO)₂₄]^n– Carbonyl Clusters

et al. 2014

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Within the reinvestigation of Ni-Sb carbonyl cluster chemistry, we report here the synthesis and characterization of the new [Ni 19 Sb 4 (CO) 26 ] 4cluster and the synthesis, structure, magnetic characterization and electrical resistivity of the viologen salts of the previously known [Ni 13 Sb 2 (CO) 24 ] n-(n = 2, 3) anionic species. The crystal structures of [NEt 4 ] 4 [Ni 19 Sb 4 (CO) 26 ], [EtV] 8 [Ni 13 Sb 2 (CO) 24 ] 3 ·4DMF·2C 6 H 14 and [EtV] 3 [Ni 13 Sb 2 (CO) 24 ]·1.5THF (EtV = 1,1Ј-diethyl-4,4Ј-bipyridilium cation, DMF = N,N-dimethylformamide, THF = tetrahydrofuran) are described. Notably, the unit cell of [EtV] 8 [Ni 13 Sb 2 (CO) 24 ] 3 ·4DMF·2C 6 H 14 involves a mixture of two [Ni 13 Sb 2 (CO) 24 ] 3trianions and one [Ni 13 Sb 2 (CO) 24 ] 2dianion, as it also contains eight [EtV] +· radical monocations, which are assembled in infinite stacks. In contrast, the unit cell of the [EtV] 3 [Ni 13 Sb 2 (CO) 24 ]·1.5THF salt contains four [Ni 13 Sb 2 (CO) 24 ] 3trianions along with twelve [EtV] +· radical [a]

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Synthesis, chemical, and electrochemical characterization of the [Ag13{?3-Fe(CO)4}] n? (n = 3, 4, 5) cluster anions: X-Ray structural determination of [N(PPh3)2]3 [Ag12(?12-Ag){?3Fe(CO)4}8]1

Cited by 31 publications

References 18 publications

Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Synthesis, Structural Characterization, and DFT Investigations of [M_xM′_5–xFe₄(CO)₁₆]^3– (M, M′ = Cu, Ag, Au; M ≠ M′) 2-D Molecular Alloy Clusters

The Chemistry of Ni–Sb Carbonyl Clusters – Synthesis and Characterization of the [Ni₁₉Sb₄(CO)₂₆]^4– Tetraanion and the Viologen Salts of [Ni₁₃Sb₂(CO)₂₄]^n– Carbonyl Clusters

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Synthesis, chemical, and electrochemical characterization of the [Ag13{?3-Fe(CO)4}] n? (n = 3, 4, 5) cluster anions: X-Ray structural determination of [N(PPh3)2]3 [Ag12(?12-Ag){?3Fe(CO)4}8]1

Cited by 31 publications

References 18 publications

Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Quantum‐Sized Gold Nanoclusters: Bridging the Gap between Organometallics and Nanocrystals

Synthesis, Structural Characterization, and DFT Investigations of [MxM′5–xFe4(CO)16]3– (M, M′ = Cu, Ag, Au; M ≠ M′) 2-D Molecular Alloy Clusters

The Chemistry of Ni–Sb Carbonyl Clusters – Synthesis and Characterization of the [Ni19Sb4(CO)26]4– Tetraanion and the Viologen Salts of [Ni13Sb2(CO)24]n– Carbonyl Clusters

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Synthesis, Structural Characterization, and DFT Investigations of [M_xM′_5–xFe₄(CO)₁₆]^3– (M, M′ = Cu, Ag, Au; M ≠ M′) 2-D Molecular Alloy Clusters

The Chemistry of Ni–Sb Carbonyl Clusters – Synthesis and Characterization of the [Ni₁₉Sb₄(CO)₂₆]^4– Tetraanion and the Viologen Salts of [Ni₁₃Sb₂(CO)₂₄]^n– Carbonyl Clusters