Aurophilic Interactions in Cationic Gold Complexes with Two Isocyanide Ligands. Polymorphic Yellow and Colorless Forms of [(Cyclohexyl Isocyanide)2AuI](PF6) with Distinct Luminescence

2003 ◽  
Vol 125 (4) ◽  
pp. 1033-1040 ◽  
Author(s):  
Rochelle L. White-Morris ◽  
Marilyn M. Olmstead ◽  
Alan L. Balch
Keyword(s):  
Gold Complexes ◽  
Isocyanide Ligands ◽  
Aurophilic Interactions ◽  
Cationic Gold

Synthesis and solid-state structures of gold(i) complexes of diphosphines

2016 ◽  
Vol 40 (7) ◽  
pp. 6467-6474 ◽  
Author(s):  
Sebastian Molitor ◽  
Christoph Mahler ◽  
Viktoria H. Gessner
Keyword(s):  
Solid State ◽  
Structure Formation ◽  
Gold Complexes ◽  
Solid State Structures ◽  
Aurophilic Interactions

A series of diphosphine bis(gold) complexes were synthesised and the importance of aurophilic interactions for their structure formation was studied.

Ligand Exchange at a Gold(I) Carbene Complex

2013 ◽  
Vol 68 (5-6) ◽  
pp. 467-473 ◽  
Author(s):  
Mareike C. Jahnke ◽  
Tania Pape ◽  
F. Ekkehardt Hahn
Keyword(s):  
Ligand Exchange ◽  
Gold Complex ◽  
X Ray Diffraction ◽  
Substitution Reactions ◽  
Gold Complexes ◽  
X Ray ◽  
Linear Fashion ◽  
Product Mixture ◽  
Diffraction Structure ◽  
Cationic Gold

Gold complex [AuCl(NHC)] (NHC=N,N0-dipropylbenzimidazolin-2-ylidene) 1 undergoes facile substitution reactions at the gold(I) center. Treatment of 1 with anionic phenylacetylide or thiophenolate led to the neutral gold complexes 2 and 3, respectively. The cationic gold complexes [Au(NHC)(pyridine)](BF4) [4]BF4 and [Au2(NHC)2(4,4'-bipyridine)](BF4)2 [5](BF4)2 were obtained via abstraction of the chloro ligand from 1 and reaction with the appropriate amine. Reaction of 1 with AgBF4 in the presence of PPh3 instead of an amine led to an inseparable product mixture of the mixed NHC=PPh3 complex [6]BF4, the dicarbene complex [Au(NHC)2]BF4, [7]BF4, and [Au(PPh3)2]BF4, [8]BF4. Crystals of 2 and [6]BF4 were obtained, and X-ray diffraction structure analyses revealed that the gold(I) atoms are coordinated in a linear fashion by the NHC and the co-ligand

Digold(I) Complexes Derived from 5,5′-Bibenzimidazolin-2-ylidene Ligands

2014 ◽  
Vol 69 (11-12) ◽  
pp. 1248-1252 ◽  
Author(s):  
Mareike C. Jahnke ◽  
Christian Schulte to Brinke ◽  
F. Ekkehardt Hahn
Keyword(s):  
Molecular Structure ◽  
Silver Oxide ◽  
Silver Complexes ◽  
X Ray Diffraction ◽  
Gold Complexes ◽  
Metal Centers ◽  
X Ray ◽  
Steric Crowding ◽  
Aurophilic Interactions

Abstract The 5,5′-bibenzimidazolium dibromide salts 2 and 3 have been prepared by fourfold N-alkylation of 5,5′-bibenzimidazole (2: R=Pr; 3: R=Bu). The diazolium salts were treated with silver oxide, and the in situ-formed silver complexes were subsequently reacted with [AuCl(SMe2)] to give the dinuclear gold complexes 4 and 5. The molecular structure of complex 5 has been determined by X-ray diffraction showing linearly coordinated gold(I) centers and, most likely due to steric crowding around the metal centers, no aurophilic interactions.

ChemInform Abstract: Anion-Induced Enantioselective Cyclization of Diynamides to Pyrrolidines Catalyzed by Cationic Gold Complexes.

ChemInform ◽  
2013 ◽  
Vol 44 (12) ◽  
pp. no-no
Author(s):  
Asmaa Kamal Mourad ◽  
Juliane Leutzow ◽  
Constantin Czekelius
Keyword(s):  
Gold Complexes ◽  
Cationic Gold

The synthesis of pyrroles and oxazoles based on gold α-imino carbene complexes

2016 ◽  
Vol 52 (46) ◽  
pp. 7336-7339 ◽  
Author(s):  
Nicole S. Y. Loy ◽  
Subin Choi ◽  
Sunggak Kim ◽  
Cheol-Min Park
Keyword(s):  
Gold Complexes ◽  
Enol Ethers ◽  
Carbene Complexes ◽  
Cationic Gold

Cationic gold complexes of α-oximimino carbenes have been identified to react with weak nucleophiles including enol ethers and nitriles.

Encapsulation Studies of Cationic Gold Complexes within a Self-Assembled Hexameric Resorcin[4]arene Capsule

2013 ◽  
Vol 2013 (8) ◽  
pp. 1494-1500 ◽  
Author(s):  
Louis Adriaenssens ◽  
Ana Escribano-Cuesta ◽  
Anna Homs ◽  
Antonio M. Echavarren ◽  
Pablo Ballester
Keyword(s):  
Gold Complexes ◽  
Self Assembled ◽  
Cationic Gold

Mechanism of the Dehydrogenative Silylation of Alcohols Catalyzed by Cationic Gold Complexes: An Experimental and Theoretical Study

2011 ◽  
Vol 17 (7) ◽  
pp. 2256-2265 ◽  
Author(s):  
Stéphanie Labouille ◽  
Aurélie Escalle-Lewis ◽  
Yves Jean ◽  
Nicolas Mézailles ◽  
Pascal Le Floch
Keyword(s):  
Theoretical Study ◽  
Gold Complexes ◽  
Cationic Gold

Unexpected Anion Effect in the Alkoxylation of Alkynes Catalyzed by N-Heterocyclic Carbene (NHC) Cationic Gold Complexes

2014 ◽  
Vol 20 (45) ◽  
pp. 14594-14598 ◽  
Author(s):  
Luca Biasiolo ◽  
Marina Trinchillo ◽  
Paola Belanzoni ◽  
Leonardo Belpassi ◽  
Vincenzo Busico ◽  
...  
Keyword(s):  
Gold Complexes ◽  
Anion Effect ◽  
Cationic Gold

Intramolecular aurophilic interactions in dinuclear gold(i) complexes with twisted bridging 2,2′-bipyridine ligands

2021 ◽  
Author(s):  
Nikita Y. Shmelev ◽  
Tesfu H. Okubazghi ◽  
Pavel A. Abramov ◽  
Vladislav Y. Komarov ◽  
Mariana I. Rakhmanova ◽  
...  
Keyword(s):  
Gold Complexes ◽  
Bipyridine Ligand ◽  
Aurophilic Interactions

Five new luminescent dinuclear gold(i) complexes with an atypical twisted bridging 2,2′-bipyridine ligand have been obtained and structurally characterized. The structures of these gold complexes have some similarities with a crab body.

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