Results 51 to 60 of about 12,432 (295)

Synthesis & Characterization of Oxazinan and 5-oxa-7-aza-spiro[2,5] octane from reaction of Dibenzylidene with malonic anhydride and 5-oxa-spiro[2,3] hexane-4,6-dione.

مجلة بغداد للعلوم, 2007
Di Benzylidenes were prepared by condensation of 1,2-diamino benzene with o- hydroxy benzaldehyde. These dibenzylidenes when treated with one equivalent of malonic anhydride or 5-oxo-spiro[2,3]hexane-4,6-dione in dry benzene give 6-membered heterocyclic
Baghdad Science Journal
doaj   +1 more source

When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents

Advanced Photonics Research, 2022
Spiro compounds are widely used as host matrices in organic light‐emitting diodes (OLEDs). Here, inspired by the recent developments in thermally activated delayed fluorescence (TADF) materials, the potential as a light emitter of two spiro‐configured ...
Pauline Tourneur, Fabien Lucas, Clément Brouillac, Cassandre Quinton, Roberto Lazzaroni, Yoann Olivier, Pascal Viville, Cyril Poriel, Jérôme Cornil   +8 more
doaj   +1 more source

Photo-controlled permeation of spiropyran modified gramicidin A ion channel [PDF]

, 2006
Thesis (M.S.) University of Alaska Fairbanks, 2006Biomimetic devices show great potential as being molecular sensors of biological species. Gramicidin A (gA) is a well studied ionophore that can be easily modified at the C-terminus to be incorporated ...
Cushing, Gregory W.
core  

Sultones and Sultines via a Julia-Kocienski Reaction of Epoxides [PDF]

, 2016
We thank the EPSRC/Syngenta for a CASE Ph.D. Studentship (to G.M.T.S. under grant EP/J50029X/1), the EPSRC UK National Mass Spectrometry Facility at Swansea University and the EPSRC UK National Crystallography Service Facility at Southampton University ...
Amatore, Baumann, Blakemore, Blakemore, Bondarenko, Bondarenko, Bordwell, Bray, Bray, Carreira, Chudasama, Coles, Coulomb, Coulomb, Crooks, De Castro, Dittmer, Durst, Durst, Enders, Enders, Enders, Erdmann, Fischer, Fischer, Fraser-Reid, Fustero, Gianatassio, Haasnoot, Hantzsch, Jarvis, Julia, Kobayashi, Koch, Kocienski, Kyne, Laschewsky, Lindsley, Liskamp, Lovering, Mayr, Meek, Messinger, Messinger, Meyer, Minicone, Mondal, Morimoto, Movassaghi, Nwaukwa, Ojasoo, Postel, Sarrazin, Sasaki, Schaus, Schmitt, Smil, Smith, Snape, Starkenmann, Taylor, Wadsworth, Wolckenhauer, Wong, Xia, Xu, Yolka   +66 more
core   +1 more source

A Pinacol Precursor to a Chiral Spiro Compound [PDF]

Acta Crystallographica Section C Crystal Structure Communications, 1996
The dimer of 1-indanolyl obtained from the UV photolysis of 1-indanone in 2-propanol is trans-α,α'-biindanyl-α,α'-diol, (C 9 H 9 O) 2 . There are two almost identical molecules in the asymmetric unit linked by a hydrogen-bonding system that extends along the a axis. Bond distances and angles are as expected.
Schaefer, William P., Henling, Lawrence M., McBay, Henry C., AbulÅ«, John   +3 more
openaire   +2 more sources

Data‐Driven Discovery of Quaternary Ammonium Interlayers for Efficient and Thermally Stable Perovskite Solar Cells

Advanced Materials, EarlyView.
An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim, Yang Jeong Park, Chaehoon Jeon, Nahye Shin, Jaewang Park, Seungun Lee, Jino Im, Sungroh Yoon, Sang Il Seok   +8 more
wiley   +1 more source

Spiro Compound Formation. III. The Formation of Spiro Compounds by the Rearrangement of Bicyclo[5.4.0]-undecene(1,7) and Cyclopentylcyclohexene [PDF]

Bulletin of the Chemical Society of Japan, 1969
Abstract The isomerizations of bicyclo[5.4.0]undecene-(1,7) (IV), spiro[5.5]undecene-1 (V), and 1-cyclopentylcyclohexene (VI) were examined with equivalent amounts of perchloric acid in acetic acid or in ethanol at 75°C. In acetic acid, IV, V, and VI all rearranged to form spiro[5.5]-undecan-1-yl acetate (VII) and spiro[5.5]undecan-2-yl ...
Masatomo Nojima, Niichiro Tokura
openaire   +1 more source

Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations

Advanced Materials Interfaces, EarlyView.
This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang, Senlin Gu, Jianyang Zhao, Xiaojuan Hao, Lu Hua Li, Jihua Li, Lingxue Kong   +6 more
wiley   +1 more source

Synthesis and the Spectral Investigations of Spiro, Ansa and Bridged Derivatives of Cyclochlorotriphosphazenes

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2011
The reactions of hexachlorocyclotriphosphazatriene, N3P3Cl6 (1) with 2,2-dimethylpropane-1,3-diol yield 9 new cyclophosphazene derivatives. One monospiro, N3P3Cl4[(OCH2)2-CMe2], dispiro, N3P3Cl2[(OCH2)2-CMe2]2 and tris-spiro N3P3[(OCH2)2-CMe2]3 ...
Sedat Ture
doaj   +1 more source

A tris-spiro metalla-aromatic system featuring Craig-Möbius aromaticity

Nature Communications, 2021
Spiroaromatic compounds are advantageous platforms for designing expanded aromatic systems. Herein, the authors present a tris‐spiro metalla‐aromatic Vanadium compound which forms a 40π Craig‐Möbius aromatic system.
Zhe Huang, Yongliang Zhang, Wen-Xiong Zhang, Junnian Wei, Shengfa Ye, Zhenfeng Xi   +5 more
doaj   +1 more source