Results 281 to 290 of about 746,382 (358)

A Negatively Curved Pyrene‐Fused Azaacene

Angewandte Chemie, EarlyView.
A pyrene‐fused azaacene derivative is reported in which steric overcrowding caused by eight phenyl substituents induces bending of the aromatic framework rather than twisting. ABSTRACT Non‐planar aromatic hydrocarbons display distorted π‐frameworks that give rise to unique optoelectronic properties.
Marco Carini, Miguel Martín‐Arroyo, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +3 more
wiley   +1 more source

Linker Engineering in Stapled Peptides for Enhanced Membrane Permeability: Screening and Optimization Strategies. [PDF]

Int J Mol Sci
Zhao M, Li B, Gao Y, Zhang R, Ahmattohti S, Li J, Shi X.   +6 more
europepmc   +1 more source

Consequences of Medium‐Pore Zeolite Constraints for Alkene Cracking—The Case of n‐Pentene

Angewandte Chemie, EarlyView.
Alkene cracking in medium‐pore zeolites is governed by a balance of enthalpic and entropic effects. Intrinsic barriers are quantified and shown to be lower than for alkanes due to stabilization of carbenium‐ion‐like transition states. Confinement and extra‐framework aluminum modulate reactivity by tuning transition‐state energetics, providing a ...
Ruixue Zhao, Stefan Schallmoser, Gary L. Haller, Maricruz Sanchez‐Sanchez, Johannes A. Lercher   +4 more
wiley   +1 more source

Differential Accumulation Dynamics of Organic Matter in the Central and Eastern Bohai Bay Basin (Eastern China): Implications for Tectonic Activity. [PDF]

ACS Omega
Li Y, Chen Y, Ma Z, Pan K, Xu Y, Wu X, Zhang R, Song L, Ding Q, Qu L, Zhu Q.   +10 more
europepmc   +1 more source

Hydrogen Isotope Exchange in Pyridine Catalyzed by an Iron(II) Imido Complex: Counterion‐Directed Regioselectivity

Angewandte Chemie, EarlyView.
Anionic high‐spin iron(II) imido complexes are catalysts for the hydrogen isotope exchange (HIE) reaction with pyridine as the substrate. The alkali metal counter‐cation plays critical roles in activating the substrate and facilitating deuteration. These complexes catalyze site‐selective α‐, α,β,γ‐, and β,γ‐deuteration of pyridine, where the counter ...
Bin Feng, Guorong Li, Yafei Gao, Nobuyuki Yamamoto, Maren Pink, Qian Peng, Jeremy M. Smith   +6 more
wiley   +1 more source

Multi-heating-rate pyrolysis study for modeling hydrocarbon production from in-situ conversion of Chang 7 shale. [PDF]

Sci Rep
Hou L, Ma W, Mi J, Xia L, Ma X, Liao F, Lin S.   +6 more
europepmc   +1 more source

Genome mining and screening for plastic-degrading potential in marine bacteria. [PDF]

Appl Microbiol Biotechnol
Perdigão R, Alexandrino DAM, Carvalho MF, Magalhães C, Almeida CMR, Mucha AP.   +5 more
europepmc   +1 more source

Probabilistic 3D lithology classification from elastic property volumes an advanced inversion workflow at Desouq Gas Field, West Nile Delta, Egypt. [PDF]

Sci Rep
El Hateel MS, El Sayed AMA, El-Werr AK, Abdel-Hady A.   +3 more
europepmc   +1 more source

A helical peptide antagonist of the human growth hormone receptor.

Endocrinology
Nahar K, Basu R, Ahmad A, Pettis JA, Gamage U, Holub JM, Kopchick JJ.   +6 more
europepmc   +1 more source

The hydrocarbon-degrading bacteria and fungi in oil contaminated soils of Kazakhstan: microbiome composition, enrichment, isolation and bioremediation potential. [PDF]

Environ Microbiome
Müller F, Wang H, Reinhard A, Omirbekova A, Berzhanova R, Mukasheva T, Urich T, Mikolasch A.   +7 more
europepmc   +1 more source