Photolabile coumarins with improved efficiency through azetidinyl substitution
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Hydrogen bonding in ionic liquids based on the 1-(2'-hydroxylethyl)-3-methylimidazolium cation (C(2)OHmim) and various anions (A) of differing H-bond acceptor strength, viz. hexafluorophosphate PF6, tetrafluoroborate BF4, bis-(trifluoro ...
The bond properties between concrete and steel reinforcement influence structural stiffness and deformation behavior as a result of tension stiffening. In specific cases, the load-bearing capacity of engineering structures depends on the deformation behavi ...
One central aim of nanotechnology is the creation and exploitation of nanostructured materials with pre-programmed architecture and properties. The fabrication of functional nanostructures relies on versatile protocols of synthetic chemistry enabling the p ...
We present a low-temperature indium hermetic bonding technique on wafer level without using flux, active atmosphere or other pretreatment of the indium. Its simplicity and low temperatures allow encapsulation of sensitive MEMS devices. Bonding stronger tha ...
Heck shortens the distance. Palladium-catalyzed activation of C(sp3)-H bond by a σ-alkyl Pd(II) complex generated in situ from a remote arylhalide function is developed. The novel domino carbopalladation/C(sp3)-C(sp3) bond forming process allowed a rapid a ...
We report the first bis-cyclometalated cationic iridium(III) complex with N-aryl-substituted 1H-imidazo [4,5-f][1,10]phenanthroline. The complex emits yellow-orange phosphorescence with a maximum at 583 nm, a quantum yield of 43%, and an excited-state life ...
Two new cationic iridium(III) complexes with cyclometalating 1-phenylindazole or 2-phenyl-1,2,3-triazole ligands, (C boolean AND N)(2)Ir(4,4'-di-tert-butyl-2,2'-dipyridyl), exhibit yellow or green phosphorescence with quantum yields and excited stat ...
We introduce a new low temperature (280 °C) parylene-C wafer bonding technique, where parylene-C bonds directly a Pyrex wafer to a silicon wafer with either a Si, SiO2 or Si3N4 surface with a bonding strength up to 23 MPa. The technique uses a single layer ...
Electrically tunable molecules are highly attractive for the construction of molecular devices, such as switches, transistors, or machines. Here, we present a novel nanomechanical element triggered by an electrical bias as external stimulus. We demonstrate ...
Measurements of the ultrafast broadband UV fluorescence of N-acetyltryptophanamide (NATA) provide detailed information on its relaxation patterns in three different solvents: methanol (MeOH), water and acetonitrile (ACN). Several processes leading to excit ...