A5020385393- Porphyrin and Phthalocyanine Chemistry
- Structural Health Monitoring Techniques
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Vibration Control and Rheological Fluids
- Photochemistry and Electron Transfer Studies
- Geophysics and Sensor Technology
- Magnetism in coordination complexes
- Metal-Catalyzed Oxygenation Mechanisms
- Inertial Sensor and Navigation
- Molecular Junctions and Nanostructures
- Electrochemical sensors and biosensors
- Petroleum Processing and Analysis
- Photonic and Optical Devices
- Iterative Learning Control Systems
- Geomagnetism and Paleomagnetism Studies
- Atmospheric and Environmental Gas Dynamics
- Magnetic Field Sensors Techniques
- Organic Chemistry Cycloaddition Reactions
- Advanced Fiber Optic Sensors
- Luminescence and Fluorescent Materials
- Nuclear Physics and Applications
- Supramolecular Chemistry and Complexes
- Enzyme Production and Characterization
- Oil and Gas Production Techniques
Harbin Institute of Technology
2019-2024
Northwestern Polytechnical University
2013-2023
Ministry of Industry and Information Technology
2022-2023
Qiqihar University
2019
Ecolab (United Kingdom)
2013-2018
Laboratoire Écologie Fonctionnelle et Environnement
2018
Ecolab (United States)
2015-2017
Harbin University of Science and Technology
2014
Chongqing University of Posts and Telecommunications
2012
Chinese Academy of Sciences
2008
Abstract A database of absorption and fluorescence spectra, including molar coefficients quantum yields, has been compiled for 125 photochemically relevant compounds. An accompanying program enables calculation oscillator strengths, natural radiative lifetimes, transition dipole moments, Forster energy‐transfer rates, multicomponent analysis, simulations spectra upon energy transfer among linear arrays pigments, calculations blackbody radiator curves at different temperatures Lorentzian...
To investigate new architectures for molecular photonics applications, a shape-persistent cyclic hexameric architecture (cyclo-Zn3Fb3U-p/m) has been prepared that is comprised of three free base (Fb) porphyrins and zinc linked at the meso-positions via diphenylethyne units. The synthesis involves Pd-mediated coupling p/p-substituted diethynyl Zn porphyrin m/m-substituted diiodo Fb porphyrin, forming p/m-substituted linkages. isolated yield cyclo-Zn3Fb3U-p/m 5.3% in presence tripyridyl...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSchiff base complexes of cobalt(II) as neutral carriers for highly selective iodide electrodesRuo. Yuan, Yaqin. Chai, Dong. Liu, De. Gao, Junzhong. Li, and Ruqin. YuCite this: Anal. Chem. 1993, 65, 19, 2572–2575Publication Date (Print):October 1, 1993Publication History Published online1 May 2002Published inissue 1 October 1993https://pubs.acs.org/doi/10.1021/ac00067a005https://doi.org/10.1021/ac00067a005research-articleACS PublicationsRequest...
TandEM was proposed as an L-class (large) mission in response to ESA's Cosmic Vision 2015–2025 Call, and accepted for further studies, with the goal of exploring Titan Enceladus. The concept is perform situ investigations two worlds tied together by location properties, whose remarkable natures have been partly revealed ongoing Cassini–Huygens mission. These bodies still hold mysteries requiring a complete exploration using variety vehicles instruments. ambitious because its targets are most...
An approach to the storage of multiple bits information at molecular level employs molecules with a large number distinct oxidation states. Europium triple-decker sandwich composed porphyrins and phthalocyanines afford four cationic states are very attractive for information-storage applications. A larger can be achieved by combinations triple deckers that interleaved potentials. In order identify suitable candidates effective interleaving potentials, library 19 new complexes was prepared....
A shape-persistent cyclic array of six zinc porphyrins provides an effective host for a dipyridyl-substituted free base porphyrin, yielding self-assembled structure studies light harvesting. Energy transfer occurs essentially quantitatively from uncoordinated to pyridyl-coordinated in the array. coordinated porphyrin guest is less efficient (Φtrans ∼40%) and attributed Förster through-space process.
Light-harvesting arrays containing four porphyrins covalently linked to a phthalocyanine in star-shaped architecture have been synthesized. Cyclotetramerization of an ethyne-linked porphyrin−phthalonitrile 1-pentanol the presence MgCl2 and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) afforded all-magnesium porphyrin−phthalocyanine pentad 45% yield. Similar reaction using Zn(OAc)2·2H2O all-zinc 15% Arrays with different metals (free base, Mg, Zn) porphyrin macrocycles prepared by selective...
Effective light-harvesting arrays require multiple photoactive energy donors that funnel to an acceptor. Porphyrins and phthalocyanines are attractive components for due their strong absorption in the blue red regions, respectively, because transfer can occur from porphyrin phthalocyanine regardless of respective metalation states. Star-shaped comprised eight peripheral porphyrins one core have been prepared by a streamlined synthesis involving minimal reliance on protecting groups, high...
The redox kinetics for a variety of porphyrin-containing self-assembled monolayers (SAMs) on Au are reported. measurements probe both the rate electron-transfer (k0) oxidation (in presence applied potential) and charge dissipation after potential is disconnected (characterized by charge-retention half-life (t1/2)). porphyrins include (1) monomeric Zn complexes that contain phenylmethylene linkers wherein number methylene spacers varies from 0 to 3, (2) different ethynylphenyl-derived...
Free base, zinc and magnesium mono-ethynyl phthalocyanines have been prepared as building blocks for constructing phthalocyanine-containing molecular devices. The phthalocyanine were by the statistical reaction of 4,5-diheptylphthalonitrile 4-(3-hydroxy-3-methylbut-1-ynyl)phthalonitrile, followed chromatographic separation subsequent deprotection. Seven porphyrin–phthalocyanine dyads in various metalation states (M1PM2Pc; M1, M2 = Zn2+, Mg2+, or 2H+). ZnPH2Pc ZnPZnPc synthesized Pd-coupling...
The storage of multiple bits information at the molecular level requires molecules with a large number distinct oxidation states. Lanthanide triple-decker sandwich employing porphyrins and phthalocyanines afford four cationic states are very attractive for applications. Five building blocks have been prepared type (phthalocyanine)Eu(phthalocyanine)Eu(porphyrin), each bearing one iodo, ethyne, or iodo ethyne group attached to porphyrin unit. Two different potentials were derivatized an...
The previously reported reaction of phthalocyanines [H2(pc)] with PBr3, which was claimed to give a phosphorus(III) phthalocyanine "(PcPIII)", has been reinvestigated in detail both unsubstituted and alkyl-substituted phthalocyanines, 1-4. products exhibit unusual electronic mass spectra compared normal have identified as oxophosphorus(V) triazatetrabenzcorroles 5–8. corresponding dihydroxyphosphorus(V) hydroxides 9–12 also synthesized for the first time by insertion phosphorus(V) into...
We report the synthesis of monomers, dimers, trimers, and oligomers triple-decker (TD) complexes bearing S-acetylthio groups at termini: AcS-(TD)(n)()-SAc. Each TD was type (Pc)Eu(Pc)Eu(Por), where H(2)Pc = tetra-tert-butylphthalocyanine H(2)Por is a meso-tetraarylporphyrin functional 4-aryl position such as ethynyl, TMS-ethynyl, TIPS-ethynyl, or iodo. The arrays were prepared by Sonogashira- Glaser-type coupling reactions, affording 1,4-diphenylethyne 1,4-diphenylbutadiyne linkers joining...
Curing activity in the preparation of solid composite propellants determines performance rocket motors operation. Limited by lack effective monitoring tools, complete curing behavior and thermal-induced kinetics are rarely disclosed. It is still a challenge to monitor situ real-time physical chemical cross-linking reaction during propellant. Herein, we demonstrate promising approach based on optical fiber capable being implanted inside propellant internal stress evolution process, taking...
A 2-D vector vibration sensor is designed and fabricated by using an optical fiber double-clamped beam with four-core Bragg gratings (FBGs) a mass block that glued in the middle of fiber. Vectorial acceleration perpendicular to can be measured two mutually orthogonal FBG-pairs obtain vibrating information. The experimental results show possesses vectorial sensitivity 345 pm/g flat response region 5–30 Hz, it temperature insensitive, compact, cascadable. Both resonance frequency improved...
4,5-Dipentyldiiminoisoindoline 1 reacts with hexachlorodisilane (Si 2 Cl 6 ) to give the ring-contracted hydroxysilicon-α,β,γ-triazatetrabenzcorrole 4 which in solution photolyses giving ring cleavage compounds 5 and 6; stability of triazatetrabenzcorroles 7 silicon germanium as central elements is studied by UV–VIS spectroscopy.
The magnetic characterization of a spacecraft plays crucial role in ensuring cleanliness for various space exploration missions. When conducting the characterization, environmental noise traditional coil facilities (MCF) can significantly reduce accuracy model predictions by influencing measured field data. Therefore, equipment shielded room (MSR) is conducted this paper to address above issue. However, generated may undergo distortion within MSR due presence high-permeability materials...
Abstract In the past years, unconventional oil and natural gas production has steadily increased in United States. Driven by development of new technologies such as horizontal drilling hydraulic fracturing, shale led to major increases reserves gas. During water chemicals are injected, at high pressure, into formation increase fractures rock layer allow hydrocarbons flow. Because large quantities used during this process, need for treatment reuse become critical. Water prevents introduction...
This study compared two immobilization matrices like calcium-alginate and chitosan for of α-galactosidase evaluated their potential the removal non-digestible raffinose family oligosaccharides from soy milk which cause abdominal discomfort. The pH optima free immobilized enzymes were found to be similar at 4.0. chitosan-immobilized displayed higher optimal temperature (60°C) alginate-immobilized enzyme (45°C) (50°C). α-galactosidases 93.7% 97.6% hydrolysis oligosaccharides, respectively,...
Vibration isolators are a key technology in ultraprecision machining and measurements. The increasing performance requirements of magnetic vibration isolation systems (MVISs) continue to demand improvements the accuracy on which these devices modeled. However, serious constraint exists designing MVISs, as high stiffnesses will be introduced by nonlinear force-displacement characteristics. traditional analytic charge model assumes that relative permeability μ <sub...
An effective and stable method for selective fiber Bragg gratings (FBGs) inscription in multicore fibers (MCFs) using a femtosecond laser phase mask is presented. The nonlinear photoluminescence imaging technique adopted visually displaying the position of focus-line inside MCF, which helps to guarantee that focal-line precisely positioned preset core during process. FBGs with different wavelengths are successfully inscribed into each seven-core (SCF). show good consistency side-mode...