Mixed-Halide Iodoargentate Anions: the Structural Characterization of (Ag3I3X)-, X= Cl, Br, I

Bowmaker, GA; Effend, y; Kildea, JD; Skelton, Brian W.; White, AH

doi:10.1071/ch9902113

Cited by 11 publications

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“…The average Ag–I t (I t = terminal I atom) bond length of 2.759(1) Å is noticeably shorter (about 0.146 Å) than the average Ag–μ 3 ‐I bond length of 2.905(1) Å. The Ag–μ 3 ‐I and Ag–I t bond lengths in 3 and the Ag–μ 2 ‐I bond lengths in 1 and 2 are consistent with those found in other hybrid iodoargentates7b,8b and have the order of d (Ag–μ 3 ‐I) > d (Ag–μ 2 ‐I) > d (Ag–I t ). Notably, the β‐type (AgI 2 ) – polyanionic chain in 3 , built up by each tetrahedral (AgI 4 ) unit sharing two adjacent edges with a neighboring (AgI 4 ) tetrahedron, is distinctively different from the α‐type (AgI 2 ) – chain in 1 and 2 , whereby the chain is formed by each tetrahedral (AgI 4 ) sharing two opposite edges.…”

Section: Resultssupporting

confidence: 83%

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain

et al. 2014

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Three new hybrid iodoargentates (H 2 pipe) 0.5 (α-AgI 2 ) (1), (Me 2 teda) 0.5 (α-AgI 2 ) (2), and (H 2 dpe) 0.5 (β-AgI 2 ) (3) have been synthesized under solvothermal conditions, whereby the aliphatic organic cations (H 2 pipe) 2+ and (Me 2 teda) 2+ (pipe = piperazine, teda = triethylenediamine) and the conjugated organic cation (H 2 dpe) 2+ [dpe = 1,2-di(4-pyridyl)ethylene] exhibit different contributions to both the crystal and electronic structures. The (H 2 pipe) 2+ and (Me 2 teda) 2+ cations direct the formation of α-type (AgI 2 ) -polyanionic chains and influence the bandgaps of 1 and 2 indirectly by modulating the iodoargentate anionic structures. By contrast, the (H 2 dpe) 2+

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Section: Resultssupporting

confidence: 83%

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain

et al. 2014

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“…By addition of diethyl ether, a white precipitate was recovered by filtration and dried under vacuum. Characterization of compounds 6, 9, and 10 is in agreement with data already reported in the literature for analogous complexes differing only for the anion, namely [Ag(PTA) 4 ]PF 6 [9,26], [Ag(PCN) 2 ]NO 3 [22], [Ag(PPh 3 ) 4 ]PF 6 [40] and [Ag(PPh 3 ) 4 ]ClO 4 [41].…”

Section: Synthesis and Characterization Of Homoleptic Phosphino Silvesupporting

confidence: 89%

Antiproliferative Homoleptic and Heteroleptic Phosphino Silver(I) Complexes: Effect of Ligand Combination on Their Biological Mechanism of Action

et al. 2020

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A series of neutral mixed-ligand [HB(pz)3]Ag(PR3) silver(I) complexes (PR3 = tertiary phosphine, [HB(pz)3]− = tris(pyrazolyl)borate anion), and the corresponding homoleptic [Ag(PR3)4]BF4 compounds have been synthesized and fully characterized. Silver compounds were screened for their antiproliferative activities against a wide panel of human cancer cells derived from solid tumors and endowed with different platinum drug sensitivity. Mixed-ligand complexes were generally more effective than the corresponding homoleptic derivatives, but the most active compounds were [HB(pz)3]Ag(PPh3) (5) and [Ag(PPh3)4]BF4 (10), both comprising the lipophilic PPh3 phosphine ligand. Detailed mechanistic studies revealed that both homoleptic and heteroleptic silver complexes strongly and selectively inhibit the selenoenzyme thioredoxin reductase both as isolated enzyme and in human ovarian cancer cells (half inhibition concentration values in the nanomolar range) causing the disruption of cellular thiol-redox homeostasis, and leading to apoptotic cell death. Moreover, for heteroleptic Ag(I) derivatives, an additional ability to damage nuclear DNA has been detected. These results confirm the importance of the type of silver ion coordinating ligands in affecting the biological behavior of the overall corresponding silver complexes, besides in terms of hydrophilic–lipophilic balance, also in terms of biological mechanism of action, such as interaction with DNA and/or thioredoxin reductase.

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Silver: Inorganic & Coordination ChemistryBased in part on the article Silver: Inorganic & Coordination Chemistry by W. Ewen Smith which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

Mak

Zhao

2005

Encyclopedia of Inorganic Chemistry

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The present review is a complete rewrite of the original article in the first edition. The new version provides concise and up‐to‐date information on the inorganic and coordination compounds of silver in oxidation states ranging from subvalent to Ag(IV). Literature coverage is extended to October 2004, and pertinent references are listed for the convenience of the interested reader. The presentation is organized under the following headings: 1. Introduction; 2. Subvalent silver compounds; 3. Silver(I) compounds (under subheadings: 3.1 Halides and pseudohalides; 3.2 Phosphorus donor ligands; 3.3 Nitrogen donor ligands; 3.4 Oxygen donor ligands; 3.5 Chalcogen donor ligands; 3.6 Silver‐rich compounds); 4. Silver(II) compounds; 5. Silver(III) and silver(IV) compounds; 6. Catalysis. The structural features of the compounds are described, and specific examples are illustrated with five figures. For the most important +1 oxidation state of silver, particular emphasis is placed on recent highlights and advances in new areas such as double and multiple salts of silver, silver(I) polyhedra with encapsulated acetylenediide (C 2 2− ) species (symbolized as C 2 @Ag n ), argentophilic Ag(I)⋯Ag(I) interaction in supramolecular assembly, halide‐centered Ag n cages, mixed‐metal clusters, and silver‐rich chalcogenide supercluster complexes. Modern application of inorganic silver catalysts, of both achiral and chiral types, to organic synthesis is presented with selected examples from the recent literature.

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Mixed-Halide Iodoargentate Anions: the Structural Characterization of (Ag3I3X)-, X= Cl, Br, I

Cited by 11 publications

References 0 publications

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain

Antiproliferative Homoleptic and Heteroleptic Phosphino Silver(I) Complexes: Effect of Ligand Combination on Their Biological Mechanism of Action

Silver: Inorganic & Coordination ChemistryBased in part on the article Silver: Inorganic & Coordination Chemistry by W. Ewen Smith which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

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Mixed-Halide Iodoargentate Anions: the Structural Characterization of (Ag3I3X)-, X= Cl, Br, I

Cited by 11 publications

References 0 publications

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI2)– Chain

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI2)– Chain

Antiproliferative Homoleptic and Heteroleptic Phosphino Silver(I) Complexes: Effect of Ligand Combination on Their Biological Mechanism of Action

Silver: Inorganic & Coordination ChemistryBased in part on the article Silver: Inorganic & Coordination Chemistry by W. Ewen Smith which appeared in the Encyclopedia of Inorganic Chemistry, First Edition .

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Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI₂)^– Chain