227603-93-2Relevant academic research and scientific papers
Phosphine and carbene azido-cations: [(L)N3]+ and [(L)2N3]+
Winkelhaus, Daniel,Holthausen, Michael H.,Dobrovetsky, Roman,Stephan, Douglas W.
, p. 6367 - 6372 (2015)
The cationic N3-species [(p-HC6F4)3PN3]+ (1) featuring a perfluoro-arene phosphonium group serves as a N3+-source in stoichiometric reactions with several Lewis bases (L) allowing for the stepwise formation of [(L)N3]+ and [(L)2N3]+ cations (L = phosphine, carbene) with liberation of (p-HC6F4)3P. X-Ray diffraction analysis and computational studies provide insight into the bonding in these remarkably stable azido-cations.
Aggregation-Induced Emission of Water-Soluble Tetraphenylethene Derivatives at Polarized Liquid|Liquid Interfaces
Nabara, Makoto,Nagatani, Hirohisa,Nishiyama, Yoshio,Yamamoto, Sho
, p. 10597 - 10605 (2020)
Aggregation-induced emission (AIE) behavior of water-soluble tetraphenylethene (TPE) derivatives bearing carboxy and sulfo groups was studied at polarized liquid|liquid interfaces. The aggregation behavior of TPE derivatives in solution and at the water|1,2-dichloroethane (DCE) interface was highly dependent on their ionizable functional groups. Spectroelectrochemical analysis elucidated that the TPE derivatives were transferred across the interface accompanied by the adsorption process at the interface. The ion transfer and interfacial AIE features of TPEs responded reversibly to the externally applied potential, indicating no rigid crystalline structure formation in the interfacial region. The red shift measured in intense interfacial emission spectra demonstrated that the carboxylate derivatives formed their J-aggregates specifically at the polarized water|DCE interface, while the aggregation processes with distinguishable emission properties took place in both the interfacial region and organic solution in the sulfonate derivative system. The AIE features were also investigated at a glycerophospholipid-adsorbed interface as a model of the biomembrane surface. The aggregation process of TPE derivatives was significantly modified through the interaction with phospholipid layers which stimulate the interfacial AIE process of tetra-anionic TPEs.
Voltammetric and visual evidence of adsorption reactions at the liquid-liquid interfaces supported on a metallic electrode
Uyanik, Ibrahim,Cengeloglu, Yunus
, p. 290 - 295 (2012/03/13)
A three electrode configuration consisting of an aqueous drop containing a redox couple of Fe2+/Fe3+ or IrCl6 2-/IrCl63- attached onto the surface of a platinum electrode and immersed into an organic electrolyte solution was apply to evaluate the adsorption-desorption processes associated with l-α-dipalmitoyl phosphatidylcholine (DPPC) interfacial complex formation. It has been observed that a significant deformation of the aqueous droplet immersed into the solution occurs in the presence of the phospholipid at potentials where the adsorption occurs. Nevertheless as the potential increases, the desorption of charged complexes of DPPC takes place, resulting in a potential-dependent drop shape phenomenon.
