Results 81 to 90 of about 104,529 (263)

C2 to C6 biobased carbonyl platforms for fine chemistry

Beilstein Journal of Organic Chemistry
The carbonyl group is central in organic synthesis, thanks to its ability to undergo a vast range of different chemical transformations on its carbon center or at the neighboring positions.
Jingjing Jiang, Muhammad Noman Haider Tariq, Florence Popowycz, Yanlong Gu, Yves Queneau   +4 more
doaj   +1 more source

13C NMR reveals no evidence of n-π* interactions in proteins. [PDF]

PLoS ONE, 2012
An n = π* interaction between neighboring carbonyl groups has been postulated to stabilize protein structures. Such an interaction would affect the (13)C chemical shielding of the carbonyl groups, whose paramagnetic component is dominated by n = π* and π
Bradley Worley, Georgia Richard, Gerard S Harbison, Robert Powers   +3 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Iron-Catalyzed Carbonyl–Alkyne and Carbonyl–Olefin Metathesis Reactions [PDF]

, 2020
Construction of carbon–carbon bonds is one of the most important tools for the synthesis of complex organic molecules. Among multiple possibilities are the carbonyl–alkyne and carbonyl–olefin metathesis reactions, which are used to form
Benedikt W. Grau, Tsogoeva, Svetlana B., Svetlana B. Tsogoeva, Grau, Benedikt W.   +3 more
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Cyclopentadienyl Complexes of Technetium

Molecules
The number of structurally investigated cyclopentadienyl (Cp−) complexes of technetium is limited in contrast to the situation with its heavier homolog, rhenium.
Ulrich Abram, Maximilian Roca Jungfer
doaj   +1 more source

Pollution Characteristics of Atmospheric Carbonyl Compounds in a Large City of Northern China

Journal of Chemistry, 2022
To better understand the pollution characteristics and formation mechanisms of atmospheric carbonyl compounds, continuous measurements of carbonyl compounds in Jinan were taken for one month at a sampling frequency of 2 h.
Jinhe Wang, Shan Chen, Xiaoguo Qiu, Wenya Niu, Ouyang Li, Chao Zhu, Xi Zhang, Xue Yang, Guiqin Zhang   +8 more
doaj   +1 more source

Non-Carbonyl-Stabilized Metallocarbenoids in Synthesis:  The Development of a Tandem Rhodium-Catalyzed Bamford−Stevens/Thermal Aliphatic Claisen Rearrangement Sequence

, 2016
A tandem rhodium-catalyzed Bamford−Stevens/Claisen rearrangement is presented. The tandem reaction uses Eschenmoser hydrazones for the in situ generation of non-carbonyl-stabilized diazo alkanes, which are presumably intercepted by Rh(II) catalysts to ...
Brian M. Stoltz (1297560), Jeremy A. May (1522234)   +1 more
core   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

Advanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah, Livy Laysandra, Kosuke Terayama, Xingyu Yang, Atsushi Isobe, Tai‐Chin Chiang, Tsuyoshi Michinobu, Yu‐Cheng Chiu   +7 more
wiley   +1 more source