533928-74-4Relevant academic research and scientific papers
Synthesis, crystal structure, electrochemical property, and antioxidant activity of copper(II) complex based on 4-butyloxy-2,6-bis(1-methyl-2-benzimidazolyl)pyridine
Pan, Rong-kai,Li, Guo-bi,Liu, Sheng-gui,Zhou, Xiao-ping,Yang, Gui-zhen
, p. 1189 - 1196 (2016)
Abstract: A new copper(II) complex [Cu(bmbp)Cl2]·DMF, where bmbp is 4-butyloxy-2,6-bis(1-methyl-2-benzimidazolyl)pyridine, was synthesized and characterized by X-ray single-crystal structure analysis. The complex crystallizes in triclinic, space group P-1 with a?=?8.4551(3)??, b?=?12.8262(4)??, c?=?14.7111(5)??, α?=?64.335(3)°, β?=?75.314(3)°, γ?=?86.749(2)°, V?=?1388.42(8)??3, Z?=?2. The Cu(II) ion adopts a distorted trigonal bipyramidal geometry coordinated by three nitrogen atoms of the ligand and two chloride atoms. TG analysis showed that the complex has high thermal stability. Electrochemical measuring exhibited an irreversible one-electron transfer process. DPPH radical scavenging assay showed that the ligand and its Cu(II) complex exhibited much lower antioxidant activity than that of ascorbic acid. Graphical abstract: [Figure not available: see fulltext.]
Ligand-Sensitized Near-Infrared to Visible Linear Light Upconversion in a Discrete Molecular Erbium Complex
Alves, Filipe,Golesorkhi, Bahman,Guénée, Laure,Naseri, Soroush,Nozary, Homayoun,Piguet, Claude,Taarit, Inès
, p. 15326 - 15334 (2021/09/30)
While the low-absorption cross section of lanthanide-based upconversion systems, in which the trivalent lanthanides (Ln3+) are responsible for converting low- to high-energy photons, has restricted their application to intense incident light, the emergence of a cascade sensitization through an organic dye antenna capable of broadly harvesting near-infrared (NIR) light in upconversion nanoparticles opened new horizons in the field. With the aim of pushing molecular upconversion within the range of practical applications, we show herein how the incorporation of an NIR organic dye antenna into the ligand scaffold of a mononuclear erbium coordination complex boosts the upconversion brightness of the molecule to such an extent that a low-power (0.7 W·cm-2) NIR laser excitation of [L6Er(hfa)3]+(hfa = hexafluoroacetylacetonate) at 801 nm results in a measurable visible upconverted signal in a dilute solution (5 × 10-4M) at room temperature. Connecting the NIR dye antenna to the Er3+activator in a single discrete molecule cures the inherent low-efficient metal-based excited-state absorption mechanism with a powerful indirect sensitization via an energy transfer upconversion, which drastically improves the molecular-based upconverted Er3+-centered visible emission.
"Janus-type" ruthenium complex bearing both phosphonic acids and pyrene groups for functionalization of ITO and HOPG surfaces
Yang, Li,Ozawa, Hiroaki,Koumoto, Mayuko,Yoshikawa, Kai,Matsunaga, Mariko,Haga, Masa-Aki
supporting information, p. 160 - 162 (2015/02/19)
A novel Janus-type ruthenium complex bearing both phosphonic acid and pyrene groups was tethered to both ITO and HOPG surfaces in different tethering modes. On the ITO surface, the phosphonic groups were selectively attached to the ITO, resulting in the h
Thermal-healable and shape memory metallosupramolecular poly(n-butyl acrylate-co-methyl methacrylate) materials
Wang, Zhenhua,Fan, Wenru,Tong, Rui,Lu, Xili,Xia, Hesheng
, p. 25486 - 25493 (2014/07/07)
A big challenge in developing stimuli-responsive materials is to integrate multiple functionalities such as shape memory property, healable ability, recyclability into a single-component material. With this purpose, we designed a novel poly(n-butyl acrylate-co-methyl methacrylate) bearing a side group 2,6-bis(1′-methylbenzimidazolyl)pyridine ligand, which is dynamically crosslinked by the metal salt zinc trifluoromethanesulfonate to obtain the metallosupramolecular polymer. The shape recovery and healing is achieved upon application of a thermal or light stimulus due to the specific metal-ligand interactions which not only serve as an "inert" crosslink network at low temperature to produce the shape recovery, but also dissociate at high temperature for healing. The healing rate is quick and the healing efficiently is close to ~90%. the Partner Organisations 2014.
Conjugated polymer with benzimidazolylpyridine ligands in the side chain: Metal ion coordination and coordinative self-assembly into fluorescent ultrathin films
Welterlich, Irina,Tieke, Bernd
scheme or table, p. 4194 - 4203 (2012/05/04)
The synthesis and characteristic properties of a new conjugated copolymer with poly(phenylene-alt-fluorene) main chain and 2,6-bis(1′- methylbenzimidazolyl)pyridine (bip) ligands attached to the main chain via flexible spacer groups are described. The cop
Tridentate N-donor palladium(II) complexes as efficient coordinating quadruplex DNA binders
Largy, Eric,Hamon, Florian,Rosu, Frederic,Gabelica, Valerie,De Pauw, Edwin,Guedin, Aurore,Mergny, Jean-Louis,Teulade-Fichou, Marie-Paule
experimental part, p. 13274 - 13283 (2012/02/03)
Fifteen complexes of palladium, platinum, and copper, featuring five different N-donor tridentate (terpyridine-like) ligands, were prepared with the aim of testing their G-quadruplex-DNA binding properties. The fluorescence resonance energy transfer melti
