Results 61 to 70 of about 5,850 (197)

Bypassing Pre‐Photoactivation in High‐Barrier Polyamide for Robust and Scalable Organic Persistent Luminescence

Advanced Science, EarlyView.
A universal paradigm resolves the trade‐off between ambient stability and barrier properties in organic persistent luminescent (OPL) polymers. By interlocking chromophores within a high‐barrier MXD6 matrix, we achieved no Pre‐photoactivation OPLs with exceptional long‐term stability in water.
Yunlong Yang, Sha Liu, Shilin Bo, Longming Jin, Baijun Tang, Zhiying Guo, Chengtao Gao, Xionggang Wang, Yuejun Liu, Qiang Zheng, Zi Liang Wu   +10 more
wiley   +1 more source

Synthesis, crystallographic analysis and Hirshfeld surface analysis of 4-bromo-2-{[2-(5-bromo-2-nitrophenyl)hydrazin-1-ylidene]methyl}-5-fluorophenol

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound, C13H8Br2FN3O3, is nearly planar with a dihedral angle of 10.6 (4)° between the two benzene rings. Intramolecular N—H...O and O—H...N hydrogen bonds occur.
Mavise Yaman, Ercan Aydemir, Necmi Dege, Erbil Agar, Turganbay S. Iskenderov   +4 more
doaj   +1 more source

Structural, Spectroscopic and Hirshfeld Surface Analysis of Anilinium Malonate

Asian Journal of Chemistry, 2019
The comprehensive elucidation of the crystal structure, vibrational and Hirshfeld surface analysis of new crystalline product anilinium malonate C6H5NH3 +. C3H3O4 – are presented in this communication. Single crystals of anilinium malonate have been grown by the method of slow evaporation at room temperature.
F. Mary Anjalin, N. Kanagathara, M.K. Marchewka, T. Srinivasan   +3 more
openaire   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Crystal structure and Hirshfeld surface analysis of (E)-N-(4-propyloxybenzylidene)benzo[d]thiazol-2-amine

Acta Crystallographica Section E: Crystallographic Communications, 2020
The title compound, C17H16N2OS, was synthesized by a condensation reaction between 2-amino benzothiazole and 4-N-propoxybenzaldehyde. The benzo[d]thiazole ring system is nearly planar (r.m.s.
Ropak A. Sheakh Mohamad, Wali M. Hamad, Hashim J. Aziz, Necmi Dege   +3 more
doaj   +1 more source

Crystal structures and Hirshfeld surface analysis of a series of 4-O-arylperfluoropyridines [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2019
Five new crystal structures of perfluoropyridine substituted in the 4-position with phenoxy, 4-bromophenoxy, naphthalen-2-yloxy, 6-bromonaphthalen-2-yloxy, and 4,4′-biphenoxy are reported, viz. 2,3,5,6-tetrafluoro-4-phenoxypyridine, C11H5F4NO (I), 4-(4-bromophenoxy)-2,3,5,6-tetrafluoropyridine, C11H4BrF4NO (II), 2,3,5,6-tetrafluoro-4-[(naphthalen-2-yl ...
Andrew J. Peloquin, Cynthia A. Corley, Sonya K. Adas, Gary J. Balaich, Scott T. Iacono   +4 more
openaire   +3 more sources

Hexagonal Boron Nitride on Liquid and Single‐Crystal Copper: Operando X‐Ray and Atomistic Insights into Growth and Interfacial Structure

Advanced Science, EarlyView.
Liquid metal catalysts are widely assumed to promote high‐quality 2D growth. In this work, operando experiments and machine‐learning‐accelerated simulations show that hBN on Cu breaks this graphene‐derived expectation, where molten Cu promotes multilayer/3D growth, but re‐solidified single‐crystal Cu stabilizes monolayer formation.
Nikoo Ghanadan, Valentina Rein, Hao Gao, Egor Bersenev, Thomas Sarrazin, Manmeet Kaur Sodhi, Bárbara Canto, Irina Snigireva, Nicolas Gauthier, Anastasios C. Manikas, Costas Galiotis, Maciej Jankowski, Gilles Renaud, Athanasios Dimoulas, Karsten Reuter, Oleg Konovalov, Hendrik H. Heenen, Irene M.N. Groot   +17 more
wiley   +1 more source

Crystal structure and Hirshfeld surface analysis of 6-amino-8-phenyl-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrimidine-7,9-dicarbonitrile

Acta Crystallographica Section E: Crystallographic Communications, 2021
In the title compound, C16H15N5, the 1,4-dihydropyridine ring has a shallow boat conformation, while the 1,3-diazinane ring adopts an envelope conformation. In the crystal, pairwise N—H...N hydrogen bonds generate centrosymmetric dimers featuring R22(12)
Farid N. Naghiyev, Tatiana A. Tereshina, Victor N. Khrustalev, Mehmet Akkurt, Ali N. Khalilov, Anzurat A. Akobirshoeva, İbrahim G. Mamedov   +6 more
doaj   +1 more source

Hirshfeld surface analysis and crystal structure of N-(2-methoxyphenyl)acetamide [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2019
The title compound, C9H11NO2, was obtained as unexpected product from the reaction of (4-{2-benzyloxy-5-[(E)-(3-chloro-4-methylphenyl)diazenyl]benzylidene}-2-phenyloxazol-5(4H)-one) with 2-methoxyaniline in the presence of acetic acid as solvent. The amide group is not coplanar with the benzene ring, as shown by the C—N—C—O and C—N—C—C torsion angles ...
Mavise Yaman, Necmi Dege, Mzgin M. Ayoob, Awaz J. Hussein, Mohammed K. Samad, Igor O. Fritsky   +5 more
openaire   +4 more sources

Polarization Engineering in Vinylene‐Linked COFs Toward Efficient Neuromorphic Computing

Advanced Science, EarlyView.
A vinyl‐linked covalent organic framework (COF‐DIBPY) was synthesized on a conductive substrate for memristor applications. Redox reactions and bromide migration enable low‐voltage (0.5V) conductance switching with high analog on/off ratio (15.7). The device was further integrated into a speech emotion recognition system for acoustic simulation and ...
Hao Wang, Lei Zhao, Haoyuan Yao, Qiongshan Zhang, Fuzhen Xuan, Bin Zhang   +5 more
wiley   +1 more source