Browsing Química Inorgànica i Orgànica by Subject "Absorption"

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Aggregation-Induced Emission with Alkynylcoumarin Dinuclear Gold(I) Complexes: Photophysical, Dynamic Light Scattering, and Time-Dependent Density Functional Theory Studies

Cunha, Carla; Pinto Martínez, Andrea; Galvã, Adelino; Rodríguez Raurell, Laura; Seixas de Melo, J. Sérgio (2023-03-15)

Aggregation-induced emission (AIE) has gained a remarkable amount of interest in the past 20 years, but the majority of the studies are based on organic structures. Herein, three dinuclear gold(I) complexes, with the general ...

Intra- vs Intermolecular Aurophilic Contacts in Dinuclear Gold(I) Compounds: Impact on the Population of the Triplet Excited State

Aquino Samper, Araceli de; Ward, Jas S.; Rissanen, Kari; Aullón López, Gabriel; Lima, João Carlos; Rodríguez Raurell, Laura (2024-07-04)

Two series of dinuclear gold(I) complexes that contain two Au–chromophore units (chromophore = dibenzofurane or dimethylfluorene) connected through a diphosphane bridge that differs in the flexibility and length (diphosphane ...

Role of the hydrophobic effect in the transfer of chirality from molecules to complex systems. From chiral surfactants to porphyrin/surfactant aggregates

El Hachemi, Zoubir; Mancini, Giovanna; Ribó i Trujillo, Josep M.; Sorrenti, Alessandro (2023-03-22)

The interaction between the achiral sulfonated porphyrin 5,10,15,20-tetrakis(4-sulfonatophenyl) porphyrin, H2TPPS4, and two chiral cationic surfactants has been studied by optical absorption, fluorescence, and circular ...

Structure vs. excitonic transitions in self-assembled porphyrin nanotubes and their effect on light absorption and scattering

Arteaga Barriel, Oriol; Canillas i Biosca, Adolf; El Hachemi, Zoubir; Crusats i Aliguer, Joaquim; Ribó i Trujillo, Josep M. (2016-07-20)

The optical properties of diprotonated meso-tetrakis(4-sulphonatophenyl)porphyrin (TPPS4) J-aggregates of elongated thin particles (nanotubes in solution and ribbons when deposited on solid interfaces) are studied by ...

Supramolecular tripodal Au(I) assemblies in water. Interactions with a pyrene fluorescent probe

Pinto Martínez, Andrea; Hernández, Guillem; Gavara, Raquel; Aguiló Linares, Elisabet; Moro, Artur J.; Aullón López, Gabriel; Malfois, Marc; Lima, João Carlos; Rodríguez Raurell, Laura (2020-03-13)

The synthesis of three gold(I) tripodal complexes derived from tripropargylamine and containing the water soluble phosphines PTA (1, 3,5-triaza-7-phosphaadamantane), DAPTA (3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane) ...

Ternary assemblies comprising metal-salophen complexes and 4,4-bipyridine

Sabaté, Ferran; Gavara, Raquel; Giannicchi, Ilaria; Bosque Pueyo, Ramón; Dalla Cort, Antonella; Rodríguez Raurell, Laura (2020-03-11)

Two series of ternary assemblies comprising metal-salophen [salophen = N,N′-phenylenebis(salicylideneimine)] complexes (M = Zn2+ or UO22+) and 4,4′-bipyridine have been synthesized. Their absorption and emission data have ...