Self-assembly in tetrameric 1:1 silver(I) halide:tri-p-tolylphosphine complexes: An in-depth structural investigation

Venter, Gertruida J. S.; Roodt, Andreas; Meijboom, Reinout

doi:10.1016/j.ica.2008.11.004

Cited by 18 publications

(11 citation statements)

References 18 publications

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“…It appears that in all these variations the argentophilic interactions in the silver tetrahedra are maintained and contribute significantly to the stability of the tetramers. [110,111] Ag n X n cores are also present in more complex aggregates and held responsible for the intense luminescence of such systems. An example is shown in 25 representing the anion of (Bu 4 N) 4 -[Ag 10 Br 12 (CN) 2 ].…”

Section: Photoluminescencementioning

confidence: 99%

“…[110,188,189] From this wealth of data it has been concluded that conservation of the Ag-Ag interactions while minimizing the halide-halide repulsions are the determining effects in the formation of the clusters (cubane or distorted arrays as "stella quadrangular patterns"). [110] Interestingly, a decamer has recently also been discovered in a cluster complex of the formula [(NHC) 4 Ag 10 Cl 10 ] where NHC is 1-methyl-3-(2-dimethylaminoethyl)imidazol-2-ylidene. The large aggregate with its multiple Ag-Cl and Ag-Ag contacts is protected from further aggregation by the NHC ligands (50; carbene bridgings shown as bows).…”

Section: Silver Clustering At Halogensmentioning

confidence: 99%

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Argentophilic Interactions

2014

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The decade 1990-2000 saw a growing interest in aurophilic interactions in gold chemistry. These interactions were found to influence significantly a variety of structural and other physical characteristics of gold(I) compounds. The attention paid to this unusual and counterintuitive type of intra- and intermolecular bonding between seemingly closed-shell metal centers has rapidly been extended to also include silver chemistry. Hundreds of experimental and computational studies have since been dedicated to the argentophilicity phenomenon. The results of this development are reviewed herein focusing on molecular systems where two or more silver(I) centers are in close contact leading to specific structural characteristics and a variety of novel physical properties. These include strongly modified ligand-to-metal charge-transfer processes observed in absorption and emission spectroscopy, but also colossal positive and negative thermal expansion on the one hand and unprecedented negative linear compressibility of crystal parameters on the other.

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Section: Photoluminescencementioning

confidence: 99%

Section: Silver Clustering At Halogensmentioning

confidence: 99%

Argentophilic Interactions

2014

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“…Seit langem ist bekannt, dass Silbersalze bei UV-Anregung im festen Zustand und besonders bei tiefen Temperaturen starke Lumineszenz zeigen. [ [110,111] Ag n X n -Gerüste liegen auch in komplexeren Aggregaten vor und werden für die intensive Lumineszenz derartiger Systeme verantwortlich gemacht. Als Beispiel ist das Anion 25 von (Bu 4 N) 4 [Ag 10 Br 12 (CN) 2 ] gezeigt.…”

Section: Photolumineszenzunclassified

“…[110,188,189] Aus dieser Datenfülle wurde geschlossen, dass die Beibehaltung der Ag···Ag-Wechselwirkung bei gleichzeitiger Minimierung der Halogenid-Halogenid-Abstoßungen die Bildung dieser Cluster mitbestimmt (Cubananordnungen oder verzerrte "Quadrangularer-Stern"-Anordnungen). [110] Interessanterweise wurde kürzlich in einem Clusterkomplex der Zusammensetzung [(NHC) 4 Ag 10 Cl 10 ] mit NHC = 1-Methyl-3-(2-dimethylaminoethyl)imidazol-2-yliden auch ein Decamer gefunden. Der große Komplex mit seinen vielen Ag-Cl-und Ag···Ag-Kontakten wird durch die NHC-Liganden vor weiterer Aggregation geschützt (50; Carbenbrücken durch Bçgen dargestellt).…”

Section: Bildung Von Silberclustern An Schwefel-und Selenatomenunclassified

Argentophile Wechselwirkungen

2014

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Zwischen 1990 und 2000 wuchs in der Goldchemie das Interesse an aurophilen Wechselwirkungen, nachdem man festgestellt hatte, dass diese eine Vielzahl struktureller und anderer physikalischer Eigenschaften von Gold(I)‐Verbindungen nennenswert beeinflussen. Die Aufmerksamkeit, die man diesem kontraintuitiven inter‐ und intramolekularen Typ von Bindung zwischen Metallzentren mit scheinbar abgeschlossener Elektronenschale entgegenbrachte, hat sich schnell auch auf die Chemie des Silbers ausgeweitet. Hunderte von Untersuchungen widmeten sich seither dem Phänomen der Argentophilie. Dieser Aufsatz gibt einen Überblick über diese Entwicklung mit Hauptaugenmerk auf molekularen Systemen mit zwei oder mehr in engem Kontakt stehenden Silber(I)‐Zentren, was zu spezifischen strukturellen sowie zu einer Vielzahl neuartiger physikalischer Eigenschaften führt. Diese schließen vor allem stark veränderte Ligand→Metall‐Ladungstransferprozesse ein, aber auch eine überdimensionale thermische Kontraktion auf der einen und eine beispiellose negative lineare Kompressibilität von Kristallparametern auf der anderen Seite.

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“…[43][44][45] As a comparison, the distances of Ag···Ag argentophilic interactions in many coordination complexes are in the range of 3.0-3.4 Å. [46][47][48][49] We hypothesize that Ag-Ag argentophilic interactions exist in complex 3. The unusual feature of this structure is due to the fact that the 1D ladder chains are connected to each other by interchain Ag-Ag interactions, which result in a 2D grid sheet structure shown in Figure 3b.…”

Section: [Ag 2 (Btmb) (N 3 ) 2 ] N (3)mentioning

confidence: 99%

Anion Effects on the Formation of Silver(I) Complexes with the Flexible Ligand 4,4′‐Bis(1,2,4‐triazol‐1‐ylmethyl)biphenyl

Zhao

Shao

Zhu

et al. 2011

Zeitschrift anorg allge chemie

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The reaction of 4,4'-bis(1,2,4-triazol-1-ylmethyl)biphenyl (btmb) with silver(I) salts of BF 4 -, NO 3 and N 3 led to the formation of four new silver(I) coordination polymers {[Ag(btmb)]BF 4 } n (1),. Their coordination number varies from 2 (in 1) to 3 (in 2), 4 (in 3), and 5 (in 4). Different from the single chain structure of 1, complex 2 displays a 1D ladder-like double chain framework, whereas complex 3 exhibits a 2D layered architecture. Complex 4 has the same anion as complex 3 but shows a different metal-toligand ratio and a 1D double-zigzag chain structure. Both 3 and 4 have Ag···Ag argentophilic interactions. The ligand btmb adopts both cis or Scheme 1. The "cis" and "trans" conformations of btmb.

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Self-assembly in tetrameric 1:1 silver(I) halide:tri-p-tolylphosphine complexes: An in-depth structural investigation

Cited by 18 publications

References 18 publications

Argentophilic Interactions

Argentophilic Interactions

Argentophile Wechselwirkungen

Anion Effects on the Formation of Silver(I) Complexes with the Flexible Ligand 4,4′‐Bis(1,2,4‐triazol‐1‐ylmethyl)biphenyl

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