Results 71 to 80 of about 46,804 (306)

(1R*,2R*,5R*,6S*)-6-Bromo-9-oxabicyclo[3.3.1]nonan-2-ol

open access: yesIUCrData
Both six-membered rings in the title bicyclo[3.3.1] system, C8H13BrO2, adopt a chair conformation. Hydrogen bonds from the hydroxy group to the ether bridge connect the molecules into zigzag chains: single-enantiomer chains propagating along the b-axis ...
Lea Simon   +2 more
doaj   +1 more source

Bromine-Substituted Indolo[3,2‑b]carbazole-Based Small Organic Molecules as Dopant-Free Hole-Transporting Layers for Inverted Perovskite Solar Cells

open access: yes
In this paper, three indolo­[3,2-b]­carbazole-based small organic molecules (ICZ, ICZ-2Br, and ICZ-4Br) are rapidly synthesized and used as dopant-free hole transport layers (HTLs) for inverted perovskite solar cells.
Haoliang Cheng (7109171)
core   +1 more source

Impact of Very Short-Lived Substances on Stratospheric Bromine Loading [PDF]

open access: yes, 2011
Recent studies have shown the importance of very short-lived substances (VSLS) for the abundance of stratospheric bromine. In this work, the transport of bromine VSLS into the stratosphere is investigated with a three-dimensional chemistry transport ...
Aschmann, Jan
core  

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

open access: yesAdvanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy   +5 more
wiley   +1 more source

Hydrogeological uniqueness of groundwater in the Cherkashinsky area of the Tobolsk district of the Tyumen region

open access: yesИзвестия высших учебных заведений: Нефть и газ
Intensive development of the Tyumen region, where the largest West Siberian megabasin is located (the Tyumen groundwater deposit is the largest in Russia), violates the natural state of ecosystems, in particular groundwater, which is the basis of an ...
A. S. Aleksandrov, V. A. Beshentsev
doaj   +1 more source

Demo 16-11 Bromine Diffusion

open access: yes, 2001
Any molecule interacts with the surrounding air molecules as it diffuses through the air, limiting the speed with which it diffuses. Conversely, the molecules will diffuse through a partially evacuated tube at a much faster speed.

core  

Reconfigurable Au Nanoparticle Monolayers on Regenerated Cellulose Hydrogels: Highly Sensitive SERS Detection of Polystyrene Micro/Nanoplastics With Interpretable Deep Learning

open access: yesAdvanced Functional Materials, EarlyView.
A regenerated cellulose (RC) hydrogel‐based SERS substrate integrating a Marangoni‐transferred gold nanoparticle self‐assembled monolayer (Au‐SAM) is fabricated. Reswelling‐induced hotspot formation enhances polystyrene micro/nanoplastics (PS MNPs) detection in complex matrices, providing reproducible, high‐throughput SERS signals across diverse ...
Youngho Jeon   +5 more
wiley   +1 more source

Immediately dangerous to life or health (IDLH) value profile : bromine trifluoride (CAS\uae No. 7787-71-5)

open access: yes
NIOSHTIC no. 20060298Suggested citation: NIOSH [2020]. Immediately dangerous to life or health (IDLH) value profile: bromine trifluoride, CAS\uae No. 7787-71-5. By Niemeier RT. Cincinnati, OH: U.S.

core   +1 more source

Direct Integration of Conductive, Emissive Perovskite Nanocrystals Into Efficient Light‐Emitting Diodes Without Post‐Synthetic Ligand Exchange

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate the direct integration of CsPbBr3 perovskite nanocrystals (PNCs) into optoelectronic devices without post‐synthetic ligand exchange. This is achieved by synthesizing PNCs stabilized by strong‐binding‐energy oleylammonium–bromide pairs instead of oleate ligands. The resultant low ligand density and minimized surface defects enhance charge
Jigeon Kim   +16 more
wiley   +1 more source

Anomalous halogen bonds in the crystal structures of 1,2,3-tribromo-5-nitrobenzene and 1,3-dibromo-2-iodo-5-nitrobenzene

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title trihalogenated nitrobenzene derivatives, C6H2Br3NO2 and C6H2Br2INO2, crystallize in triclinic and monoclinic cells, respectively, with two molecules per asymmetric unit in each case.
José A. Romero   +2 more
doaj   +1 more source

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