Results 111 to 120 of about 35,154 (267)

Amidofluorene-appended lower rim 1,3-diconjugate of calix[4]arene: synthesis, characterization and highly selective sensor for Cu2+

Beilstein Journal of Organic Chemistry, 2016
Functionalization of calix[4]arene with amidofluorene moieties at the lower rim led to formation of the 1,3-diconjugate of calix[4]arene L as a novel fluorescent chemosensor for Cu2+. The receptor molecule L exhibited a pronounced selectivity towards Cu2+
Rahman Hosseinzadeh, Mohammad Nemati, Reza Zadmard, Maryam Mohadjerani   +3 more
doaj   +1 more source

Enhanced Thermal Durability and Efficiency of Organic Solar Cells via Selective Organic Electron Transport Layers

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
PDINN‐based organic solar cells exhibit strong thermal durability, maintaining high efficiency at 110°C, whereas PFN‐Br devices degrade rapidly. PDINN's stable interfacial interactions enhance charge transport and suppress recombination, emphasizing the key role of interfacial engineering in achieving thermally durable, high‐performance OSCs.
Hye Seon Shin, Dong Hwan Yun, Youngchae Cho, Mihyun Kim, Harin Kim, Seungmin Baek, Seyeong Song, Gi‐Hwan Kim   +7 more
wiley   +1 more source

Machine Learning–Enhanced Fluorescence Cryptography with NADH‐Responsive Polymer Dots

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a smart anticounterfeiting system using semiconducting polymer dots (Pdots) that exhibit tunable fluorescence responses to NADH. By integrating these dynamic optical signals with machine learning–based decoding, the work establishes a secure and intelligent encryption platform, showing a novel strategy that links chemical sensing ...
Zhengkun Zhan, Mingyue Gong, Zirui Zeng, Hangyu Liu, Xiaoliang Li, Zhuxin Dong, Xiaoju Men, Haobin Chen   +7 more
wiley   +1 more source

Unlocking the Functionalization and Reactivity of Ethylene Bridges in [2.2]Paracyclophanes: Strategies and Challenges

European Journal of Organic Chemistry, EarlyView.
Bridging the gap. Beyond deck functionalization, the ethylene bridges of [2.2]paracyclophanes offer a largely unexploited reactivity landscape. This review showcases strategies to functionalize these bridges and leverage them to build novel cyclophane architectures.
Rongyu Sun, Tamara Ye, Laurent Micouin, Erica Benedetti   +3 more
wiley   +1 more source

Studies on Fluorene Derivatives X

Journal of Synthetic Organic Chemistry, Japan, 1958
2-(4'-Bromobenzoyl) benzoic acid was prepared from phthalic anhydride and bromobenzene, then 3-bromofluorenone was synthesized after passing through several steps. This was converted into 3-bromofluorene-9, 9-dichloride, dechlorination of which yielded 3, 3'-dibromobis (biphenylene) ethylene.
Kazuo SUZUKI, Shoji KAJIGAESHI, Makoto SANO   +2 more
openaire   +3 more sources

Remarkable Formation of Indene Derivatives Upon Friedel–Crafts Acylation Reactions

European Journal of Organic Chemistry, EarlyView.
This shows indene derivatives. Under the reaction conditions of a Friedel–Crafts acylation, alkyl benzenes underwent an unprecedented cyclopentannulation furnishing indene derivatives. Alkylbenzene derivatives react with two equivalents of pivaloyl chloride (PivCl) in the presence of aluminum trichloride under formation of indene derivatives with up to
Leah Bantel, Neels Kruse, Marc Schmidtmann, Jens Christoffers   +3 more
wiley   +1 more source

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

FlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing, Han Wu, Xiaoling Xu, Sijie Xian, Jingsheng Miao, Xiaojun Yin, Chuluo Yang, Xiaosong Cao   +7 more
wiley   +1 more source

Flexible organic room‐temperature phosphorescent materials

FlexMat, EarlyView.
This review highlights recent advances in flexible organic room‐temperature phosphorescent (RTP) materials, covering both organic crystal and polymer systems. It discusses strategies to overcome the inherent rigidity and enhance the mechanical flexibility of organic RTP materials, aiming to enable their practical applications in anti‐counterfeiting ...
Bolun Zhang, Xiaokang Shao, Wenjie Yin, Jiahui Xu, Beishen Wu, Zhongfu An, Huifang Shi   +6 more
wiley   +1 more source

Perfluoro-3-ethyl-1,2,3,10b-tetrahydrofluoranthene

Molbank
The title compound was synthesized from perfluoro-1-ethyltetralin and 1,2,3,4-tetrafluorobenzene under the action of antimony pentafluoride as a mixture of cis- and trans-isomers in a 71% isolated yield.
Vladislav V. Komarov, Vyacheslav I. Krasnov, Victor M. Karpov, Dmitriy A. Parkhomenko, Tatyana V. Mezhenkova   +4 more
doaj   +1 more source

Shellfish Tissue Monitoring in Piscataqua Region Estuaries 2010 and 2011 [PDF]

, 2013
Conducted by a committee of Canadian and US government and university scientists, Gulfwatch examines the effects of decades of development and industrialization on the water quality of the Gulf as it relates to human health primarily through assessing ...
Trowbridge, Philip R., Wood, Matthew A.
core   +2 more sources