Results 141 to 150 of about 11,829 (216)

Giese-type alkylation of dehydroalanine derivatives via silane-mediated alkyl bromide activation. [PDF]

Beilstein J Org Chem
van der Heide P, Retini M, Fanini F, Piersanti G, Secci F, Mazzarella D, Noël T, Luridiana A.   +7 more
europepmc   +1 more source

Thermally Activated Swelling and Wetting Transition of Frozen Polymer Brushes:a New Concept for Surface Functionalization

Advanced Materials, EarlyView.
A novel approach is introduced that leverages polymer phase transitions to modulate brush behavior. The oleophilic bottle brush system exhibits two distinct melting transitions—bulk and surface—enabling a two‐stage swelling and wetting transition.
Luciana Buonaiuto, Sander Reuvekamp, Billura Shakhayeva, Enqing Liu, Franziska Neuhaus, Björn Braunschweig, Sissi de Beer, Frieder Mugele   +7 more
wiley   +1 more source

Ni-catalyzed regioselective and site-divergent reductive arylalkylations of allylic amines. [PDF]

Chem Sci
Meng H, Jia JS, Yang PF, Li YL, Yu Q, Shu W.   +5 more
europepmc   +1 more source

Electron Extraction Optimization for Carbon‐Based Hole‐Conductor‐Free Perovskite Photovoltaics With Record 1.41 V VOC

Advanced Materials, EarlyView.
A gradient electron energy level strategy is constructed to reduce voltage losses in planar HTL‐free CsPbI2Br C‐PSCs. This electron extraction optimization enables rapid photogenerated electron extraction and carrier separation, thereby suppressing recombination at the back contact. The resulting PSCs deliver a record VOC of 1.41 V, a high PCE of 17.42%
Zhiqi Li, Xiyun Xie, Zhenhai Ai, Yu Han, Tao Zhu, Ruijie Ma, Heng Liu, Xinhui Lu, Qi Wei, Mingjie Li, Junyan Xiao, Kuan Liu, Zhiwei Ren, Gang Li   +13 more
wiley   +1 more source

C1-4 Alkylation of Aryl Bromides with Light Alkanes enabled by Metallaphotocatalysis in Flow. [PDF]

Angew Chem Int Ed Engl
Pulcinella A, Chandra Tiwari P, Luridiana A, Yamazaki K, Mazzarella D, Sadhoe AK, Alfano AI, Tiekink EH, Hamlin TA, Noël T.   +9 more
europepmc   +1 more source

Spin‐State Manipulation of Atomic Manganese Center by Phosphide‐Support Interactions for Enhanced Oxygen Reduction

Advanced Materials, EarlyView.
The electronic configuration of Mn single‐atom sites is regulated from low‐spin to high‐spin states by embedding well‐defined molybdenum phosphide nanocrystals nearby (MoP@MnSAC‐NC). The electronic phosphide‐support interaction between MoP and Mn single atoms drives the electronic structure transition in Mn sites from low‐spin to high‐spin states, and ...
Zuyang Luo, Jiayin Xie, Jinshan Cheng, Fengli Wei, Shuai Lyu, Junjiang Zhu, Xiaofeng Shi, Xiulin Yang, Bin Wu, Zhichuan J. Xu   +9 more
wiley   +1 more source

AshPhos Ligand: Facilitating Challenging Aminations in Five- and Six-Membered Heteroaryl Halides Using Cyclic Secondary and Bulky Amines. [PDF]

JACS Au
Dusunge A, Leahy DK, Handa S.
europepmc   +1 more source

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

Advanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon, Preetam Dacha, Heng Zhang, Elif Unsal, Mike Hambsch, Alexander Croy, Shuai Fu, Nguyen Ngan Nguyen, Kejun Liu, Haoyuan Qi, Sein Chung, Minyoung Jeong, Lei Gao, Ute Kaiser, Kilwon Cho, Hai I. Wang, Renhao Dong, Gianaurelio Cuniberti, Mischa Bonn, Stefan C. B. Mannsfeld, Xinliang Feng   +20 more
wiley   +1 more source

Electrochemical Synergistic Ni/Co-Catalyzed Carbonylative Cross-Electrophile Coupling of Aryl and Alkyl Halides with CO. [PDF]

JACS Au
Tao S, Yang Y, Chen L, Xu J, Fu H, Chen H, Jiang W, Li R, Xue W, Zheng X.   +9 more
europepmc   +1 more source

Spatially Resolved Observation of Ferroelectric‐to‐Paraelectric Phase Transition in a Two‐Dimensional Halide Perovskite

Advanced Materials, EarlyView.
Temperature‐dependent nanoscale ferroelectric domain evolution and the ferroelectric‐to‐paraelectric phase transition in 2D halide perovskites is visualized using piezoresponse force microscopy. The phase transition initiates locally below the Curie temperature and progressively propagates as paraelectric regions expand.
Tae Hyun Jung, Yunseung Kuk, June Hee Shin, Jihyun Lee, Jiyoon Leem, Seong Bin Bae, Jeong Bin Cho, Sang Woo Lee, Taek Rim Kim, Hyeokju Kang, Yong Soo Kim, Myung‐Hwa Jung, Joon I. Jang, Kang Min Ok, Sang Mo Yang   +14 more
wiley   +1 more source