ListarINAM_Articles por tema "N-heterocyclic carbenes"
Mostrando ítems 1-12 de 12
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1H-1,2,3-Triazol-5-ylidenes: Readily Available Mesoionic Carbenes
American Chemical Society (2018)Classical carbenes are usually described as neutral compounds featuring a divalent carbon with only six electrons in their valence shell. It was only in 1988 that our group prepared the first isolable example, in which the ... -
A D3h-symmetry hexaazatriphenylene-tris-N-heterocyclic carbene ligand and its coordination to iridium and gold: preliminary catalytic studies
Royal Society of Chemistry (2017)A new D3h-symmetry tris-N-heterocyclic carbene ligand has been prepared and coordinated to iridium and gold. The ligand contains an electron-poor hexaazatriphenylene core; thus, the resulting tris-NHC ligand is a poor ... -
A Matter of Fidelity: Self‐Sorting Behavior of Di‐Gold Metallotweezers
Wiley (2019-06)Cation‐induced high selective self‐sorting is observed for reactions involving a series of di‐gold metallotweezers. The variation of the nature of the arms of the tweezers (benzo‐imidazolylidene or pyrene‐imidazolylidene), ... -
A Rigid Trigonal‐Prismatic Hexagold Metallocage That Behaves as a Coronene Trap
Wiley (2019-05-13)A trigonal‐prismatic hexagold cage was obtained by combining a triphenylene‐tris(N‐heterocyclic carbene) ligand and a carbazolyl‐bis(alkynyl) linker. The metallocage has a slot‐like cavity with a volume of about 300 Å3. ... -
A Size‐Flexible Organometallic Box for the Encapsulation of Fullerenes
Wiley (2019-04-19)A palladium‐cornered molecular square with four pyrene‐bis(imidazolylidene) bridging ligands is reported. This metallo‐polygon can encapsulate C60 and C70. The X‐ray diffraction structures of the empty cage as well as the ... -
Cation-Driven Self-Assembly of a Gold(I)-Based Metallo-Tweezer
Wiley (2017-08-07)A combination of self-complementary pi-pi-stacking interactions and metallophilic interactions triggered the self-assembly of a new digold(I) metallo-tweezer in the presence of several types of M+ ions. Titrations by ... -
Dimensional Matching versus Induced‐Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle
Wiley (2020-04-20)A tetragold(I) rectangle‐like metallocage containing two pyrene‐bis‐imidazolylidene ligands and two carbazolyl‐bis‐alkynyl linkers is used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs), ... -
Guest-shuttling in a nanosized metallobox
Wiley (2024-01-05)An iridium-conjoined long and narrow metallorectangle was obtained by combining a quinoxalinophenanthrophenazine-connected Janus-di-imidazolylidene ligand and pyrazine. The size and shape of this assembly together with the ... -
Platinum-Based Organometallic Folders for the Recognition of Electron-Deficient Aromatic Substrates
Wiley (2017-05-29)A series of platinum complexes with cis-oriented polyaromatic N-heterocyclic carbene ligands were prepared and characterized. The relative disposition of the polyaromatic ligands about the metal cause these compounds to ... -
Preparation and self-aggregation properties of a series of pyrene-imidazolylidene complexes of gold (I)
Elsevier (2020-06-21)This article describes the preparation of three different Au(I) complexes bearing a pyrene-imidazolylidene ligand, two of which are bound to phenyl-acetylene ligands. The supramolecular and photophysical properties of all ... -
Redox-Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide-Derived N-Heterocyclic Carbene Complexes
Wiley (2021-09-01)Two naphthalene-diimide (NDI) bis-imidazolium salts have been used as N-heterocyclic carbene (NHC) precursors for the preparation of NDI-functionalized complexes of rhodium and iridium of general formula [MCl(NDI-NHC)(COD)] ... -
The Complex Coordination Landscape of a Digold(I) U‐Shaped Metalloligand
Wiley (2018)A U‐shaped di‐gold metallotweezer with two pyrene‐imidazolylidene edges and a xanthenyl‐bis‐alkynyl connector was prepared. This metallotweezer acts as metalloligand in the presence of Cu+, Tl+, or Ag+, showing three clearly ...