Bonding models for ligated and bare clusters

Mingos, D. Mike P.; Slee, Tom; Lin, Zhenyang

doi:10.1021/cr00100a003

Cited by 164 publications

(102 citation statements)

References 34 publications

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“…The overall shape of these clusters can be categorized into toroidal (ellipsoidal, 2D) and hemispherical/spherical (3D), which have been accounted for in terms of polyhedral electron counting and molecular orbital calculations [34,51].…”

Section: N # 13mentioning

confidence: 99%

“…Most of these clusters exploited monodentate phosphines as the ligands, revealing the general trend of the geometrical preference in the formation of ultrasmall clusters under unconstrained conditions. Through these studies, fundamental structure and bonding of this class of compounds were comprehensively established and were also interpreted theoretically [50][51][52]. Thereafter, major interests in ligand-coordinated gold clusters moved to heterometallic, higher-nuclearity (e.g., Au 39 , Au 55 ), and thiolate-capped families.…”

Section: Introductionmentioning

confidence: 99%

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Phosphine-Coordinated Pure-Gold Clusters: Diverse Geometrical Structures and Unique Optical Properties/Responses

Konishi

2014

Structure and Bonding

114

125

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Synthetic techniques, geometrical structures, and electronic absorption spectra of phosphine-coordinated pure-gold molecular clusters (PGCs) accumulated over 40 years are comprehensively collected especially for those with unambiguous X-ray crystal structures available. Inspection of the electronic absorption spectra from geometrical aspects reveals that their optical properties are highly dependent on the cluster geometries rather than the nuclearity. Recent examples of unusual clusters that show unique color / photoluminescence properties and their utilization for stimuli-responsive modules are also presented.

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Section: N # 13mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phosphine-Coordinated Pure-Gold Clusters: Diverse Geometrical Structures and Unique Optical Properties/Responses

Konishi

2014

Structure and Bonding

114

125

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“…The introduction of relativistic effects in more advanced calculations in the 1970s has shown that bonding between closed-shell metal atoms or ions may be strongly enhanced by these effects (56)(57)(58)(59)(60)(61)(62). Since relativistic effects have been known to be particularly strong for the heavy elements in the Periodic Table in general, and to reach a local maximum for gold in particular (6, 7), aurophilicity was accepted as a logical consequence of these contributions (5).…”

Section: Theoretical Contributionsmentioning

confidence: 99%

The aurophilicity phenomenon: A decade of experimental findings, theoretical concepts and emerging applications

2000

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The term 'aurophilicity' was introduced in 1989 to describe phenomena in the structural chemistry of gold which could not be readily rationalized by conventional concepts of chemical bonding. In the following decade the aurophilicity concept has been widely applied and supported by the results of many experimental as well as theoretical studies. It will be carried over into the new millennium as a continued incentive for investigations that will help in the understanding of the unique properties of gold.

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“…The crystalline structures of Sb 4 molecules have been observed in the condensed phase using scanning tunneling microscopy [4]. Antimony cluster ions, Sb n + , obtained after fragmentation following ionization with a large excess of energy, have a deltahedron structure and their stability is explained by Wade's rule or polyhedral skeletal electronic pair theory (PSEPT) [5]. Among oxides of the group 15 elements, P and As mainly form molecular oxides, whereas Sb and Bi tend to form polymeric oxide structures.…”

Section: Introductionmentioning

confidence: 99%