Results 71 to 80 of about 3,741,215 (311)

(2SR,4aSR,8aSR)-6-Oxoperhydronaphthalene-2-carboxylic acid

Acta Crystallographica Section E, 2009
In the title racemic compound, C11H16O3, the molecule adopts a conformation that places its carboxyl group in an equatorial position. Molecules aggregate by hydrogen-bond pairing of carboxyl groups, yielding centrosymmetric dimers that are arranged into ...
Georgia Efthimiopoulos, Mark Davison, Roger A. Lalancette, Hugh W. Thompson   +3 more
doaj   +1 more source

Cobalt/Photoredox Catalyzed Desymmetrization of Oxo and Azabicycles via Asymmetric Reductive Coupling With Alkynes

Advanced Science, EarlyView.
A one‐step, asymmetric reductive coupling of alkynes and oxa‐ and aza‐bicyclic olefins using a cobalt/photoredox catalytic system through desymmetrization. ABSTRACT Bicyclo[2.2.1]heptane frameworks represent a privileged structural motif prevalent in numerous natural products and bioactive molecules.
Subhankar Pradhan, Arko Saha, Bholanath Maity, Sayan Dutta, Luigi Cavallo, Basker Sundararaju   +5 more
wiley   +1 more source

Crystal structures of racemic and enantiomeric 5-isopropyl-5-methylhydantoin [PDF]

, 2014
Crystal structures of racemic and enantiomeric 5-isopropyl-5-methylhydantoin (IPrMH) have been determined by single crystal X-ray diffraction. Melting temperatures and solid state infrared spectra are also measured.
Fujinami, Shuhei, Tanaka, Keiko, Ichitani, Masaki, Kitoh, Soh-ichi, Suda, Mitsuhiro, Honda, Mitsunori, Kunimoto, Ko-Ki   +6 more
core   +1 more source

Comparison between the crystal structures of racemic and enantiopure aryl benzyl sulfoxides. [PDF]

RSC Adv
In literature reports about the comparison between the crystal structures of racemic and enantiopure compounds, minor differences have been observed between the conformations of an enantiopure compound and the conformations of the same enantiomer when ...
Capozzi MAM, Alvarez-Larena A, Piniella Febrer JF, Cardellicchio C.   +3 more
europepmc   +2 more sources

Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications

Advanced Science, EarlyView.
Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin, Emiliano Cortés, Alexander O. Govorov, Tao Ding   +3 more
wiley   +1 more source

4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethyl-9H-thioxanthene

Acta Crystallographica Section E, 2012
In the title compound, C23H28Br2S, the thioxanthene unit is twisted, showing a dihedral angle of 29.3 (5)° between the benzene rings. When projected along [001], the packing shows two types of channels.
Omayra H. Rubio, Angel L. Fuentes de Arriba, Francisca Sanz, Francisco M. Muniz, Joaquín R. Morán   +4 more
doaj   +1 more source

Spin‐Selective Oxygen Evolution in Chiral Molecule‐Intercalated Layered Double Hydroxides

Advanced Science, EarlyView.
This hybrid electrocatalyst utilizes chiral phenylalanine intercalation within layered double hydroxides to boost oxygen evolution. Acting as a spin filter via the chiral‐induced spin selectivity effect, the material directs electron transfer along a lower‐energy pathway.
Chih‐Ying Huang, Cheng‐Rong Wu, Yang‐Sheng Lu, Yu‐Ying Chang, Chia‐Che Chang, Tsung‐Hsin Liu, Che‐Lun Lee, Jessie Shiue, Yu‐Chang Lin, Wei‐Tsung Chuang, Huang‐Ming Tsai, Ya‐Lun Ho, Jau‐Wern Chiou, Hua‐Shu Hsu, Shao‐Sian Li, Chia‐Chun Chen, Way‐Faung Pong, Chun‐Wei Chen   +17 more
wiley   +1 more source

racemic compound

, 2014
Citation: 'racemic compound' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05027 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Conformational Transduction Amplification in a Biomimetic Polyelectrolyte for Ultrasensitive Imaging of Iron Metabolism

Advanced Science, EarlyView.
This work designs a peptide‐free polyelectrolyte with stable, switchable conformations and near‐infrared fluorescence in water. It harnesses a cooperative Fe3+‐triggered sheet‐to‐helix transition to generate nonlinear fluorescence quenching, enabling the ultrasensitive, real‐time visualization of Fe3+ ion distribution and metabolic trafficking at ...
Yeqiang Zhou, Danqi Yang, Yiwei Wang, Shuangyan Li, Fan Fan, Jiayu Zou, Cheng Zhang, Yang Liu, Hong Tan, Mingming Ding   +9 more
wiley   +1 more source

Coupling Viedma ripening with racemic crystal transformations : mechanism of deracemization [PDF]

, 2017
It has been recently observed that coupling Viedma ripening with a seeded in situ metastable racemic crystal to conglomerate transformation leads to accelerated and complete deracemization: crystal transformation-enhanced deracemization.
Ter Horst, Joop, Christos Xiouras, Stefanidis, Georgios D., Stefanidis, Georgios, Van Gerven, Tom, Joop H. Ter Horst, Xiouras, Christos, Tom Van Gerven, Georgios D. Stefanidis, Ter Horst, Joop H.   +9 more
core   +1 more source