Results 91 to 100 of about 10,994 (228)

Static dielectric constant of some pure protic and aprotic solvents and for binary solvent mixtures

, 2006
Department of Chemistry, University of Kalyani, Kalyani-741 235. Nadia. West Bengal. India E-mail : drasit_guha@yahoo.co. in B. P. Poddar Institute of Management & Technology, Kolkata-700 052, India E-mail : drumil_rupa @yahoo.co.uk Manuscript received 6 December 2004, revised 21 September 2005, accepted 23 September 2005 The dielectric constant ...
A. Guha, Pal, Rupa
openaire   +1 more source

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova, Cicely M. Warne, Hugo Pétremand, Laura König‐Mattern, Johannes Stöckelmaier, Chris Oostenbrink, Georg M. Guebitz, Jeremy Luterbacher, Alessandro Pellis   +8 more
wiley   +1 more source

Covalently Bonded S‐Scheme Polymer Heterojunction for Highly Efficient Solar Hydrogen Evolution

EcoEnergy, EarlyView.
A covalently integrated all‐organic S‐scheme heterojunction (B‐CN2@Py‐CN) establishes atomic‐level charge transport channels and a strong built‐in electric field, enabling exceptional charge separation efficiency. This molecularly engineered photocatalyst achieves a cocatalyst‐free hydrogen evolution rate of 27.9 mmol g−1 h−1 under visible light ...
Dong Liu, Chaohui Sun, Xianghua Zeng, Shuhan Sun, Huaqing Zhang, Yanting Tian, Baoyou Liu, Gang Yue, Shixiong Liang, Zhanfeng Li, Yue Tian, Xianqiang Xiong   +11 more
wiley   +1 more source

Solvatochromism of 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones

Zaštita Materijala, 2018
Eight 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones were synthesized by reaction of benzoylacetone and arendiazonium salt, followed by condensation with cyanoacetamide. Absorption spectra of all azo pyridone dyes were recorded in twelve
Gordana S. Ušćumlić, Bojan Đ. Božić   +1 more
doaj   +1 more source

Structure and photophysics of 2-(2'-pyridyl)benzindoles: The role of intermolecular hydrogen bonds [PDF]

, 2007
The photophysical properties of two isomeric 2-(2′-pyridyl) benzindoles depend on the environment. Strong fluorescence is detected in nonpolar and polar aprotic solvents. In the presence of alcohols, the emission reveals an unusual behavior.
Buma, W.J., Mudadu, M.S., Petkova, I., Singh, A.K., Stokkum, I.H.M. van, Thummel, R.P., Waluk, J.   +6 more
core   +3 more sources

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble, Aditi De, Seung Joo Jang, Arun Karmkar, Venkatachalam Vinothkumar, Niyaz Mujawar, Subrata Kundu, Tae Hyun Kim   +7 more
wiley   +1 more source

Zinc 2-((2-(benzoimidazol-2-yl)quinolin-8-ylimino)methyl)phenolates : synthesis, characterization and photoluminescence behavior [PDF]

, 2013
A series of 2-(2-(1H-benzoimidazol-2-yl)quinolin-8-yliminomethyl)phenol derivatives and their zinc complexes (C1 – C5) were synthesized and fully characterized.
Li, Longlong, Li, Wen, Redshaw, Carl, Sun, Wen Hua, Sun, Wen-Hua, Zhang, Wenjuan, Zhang, Xian   +6 more
core   +2 more sources

A Direct Method to Prepare Zwitterionic Organotrifluoroborates: Ammonium and Sulfonium Derivatives

European Journal of Organic Chemistry, EarlyView.
Organotrifluoroborates find applications in synthesis, diagnostics, and theranostics. This study outlines a one‐step reaction for producing ammonium and sulfonium trifluoroborate zwitterion derivatives. This method achieves satisfactory yields without the need for expensive reagents.
Vanessa Re, Antonio Lucchini, Diego Caprioglio, Alberto Minassi, Zhenwei Yuan, Daniela Imperio, Luigi Panza   +6 more
wiley   +1 more source

Solvent-dependent complex reaction pathways of bromoform revealed by time-resolved X-ray solution scattering and X-ray transient absorption spectroscopy

Structural Dynamics, 2019
The photochemical reaction pathways of CHBr3 in solution were unveiled using two complementary X-ray techniques, time-resolved X-ray solution scattering (TRXSS) and X-ray transient absorption spectroscopy, in a wide temporal range from 100 ps to tens of ...
Qingyu Kong, Dmitry Khakhulin, Ilya A. Shkrob, Jae Hyuk Lee, Xiaoyi Zhang, Jeongho Kim, Kyung Hwan Kim, Junbeom Jo, Jungmin Kim, Jaedong Kang, Van-Thai Pham, Guy Jennings, Charles Kurtz, Rick Spence, Lin X. Chen, Michael Wulff, Hyotcherl Ihee   +16 more
doaj   +1 more source

Unravelling the photoprotection properties of mycosporine amino acid motifs [PDF]

, 2018
Photoprotection from harmful ultraviolet (UV) radiation exposure is a key problem in modern society. Mycosporine like amino acids found in fungi, cyanobacteria, macroalgae, phytoplankton and humans, are already presenting a promising form of natural ...
Horbury, Michael D., Richings, Gareth, Staniforth, Michael, Stavros, Vasilios G., Wills, Martin, Woolley, Jack Matthew   +5 more
core   +2 more sources