Results 41 to 50 of about 23,422 (216)
Chain Versus Ring: Characterization of a Meta‐Phenylene Ladder Polymer and Its Octameric Macrocycle
Chemistry – A European Journal, EarlyView.The synthesis and comprehensive spectral and photophysical analysis of a methyl‐substituted ladder meta‐phenylene macrocycle (MeLMMP) and its polymer analogue (MeLPMP) show that, despite differing topologies (macrocycle vs. polymer), both display nearly identical electronic and photophysical properties due to cross‐conjugation.
Paulo D. Nunes Barradas +4 more
wiley +1 more source
Acta Crystallographica Section E, 2012 In an endeavor directed towards the construction of the oxabicyclic[3.2.1]octane segment present in the bioactive natural products of cortistatins and icetexanes genre, the title compound, C13H19BrO3, was synthesized from (4aR,9aS)-1,3,4,4a,5,6,9,9a ...
Goverdhan Mehta, Tabrez Babu Khan
doaj +1 more source
Ring-size-selective construction of fluorine-containing carbocycles via intramolecular iodoarylation of 1,1-difluoro-1-alkenes [PDF]
, 2017 1,1-Difluoro-1-alkenes bearing a biaryl-2-yl group effectively underwent site-selective intramolecular iodoarylation by the appropriate cationic iodine species.
Fujita Takeshi +6 more
core +2 more sources
Cyclacene Stability: The Interplay of Strain, Aromaticity and Force Coupling
Journal of Computational Chemistry, Volume 47, Issue 5, 15 February 2026.Cyclacene stability arises from a balance between structural strain and aromaticity. Strain‐corrected heats of hydrogenation reveal that cyclacene thermodynamic stability is governed primarily by ring strain rather than aromatic stabilization.
Ankit Somani +3 more
wiley +1 more source
SYNTHESIS AND SPECTRA STUDIES ON CHROMIUM COPPER AND CADMIUM COMPLEXES OF(TETRA METHYLDIBENZOTETRA AZA {16}ANNULENE [L]) [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 : In high dilution method and in ethanol solution has been reacted two moles (o – phenylendiamin ) with tow moles (2,5 – Hexandion) to yield Macrocyelic Ligand type N4 . This Ligand ( L ) has been reacted with some metal ion to product metal complexes (M
Aeed salihMohammed
doaj +1 more source
, 2013 The geometrical, electronic, and magnetic properties of twisted zigzag-edged graphene nanoribbons (ZGNRs) and novel graphene M\"obius strips (GMS) are systematically investigated using first-principles density functional calculations.
Cui, Hui-Juan +5 more
core +1 more source
Aromaticity‐Switchable Tetraoxa[8]circulenes as Anode Materials for Sodium‐Ion Batteries
ChemistryEurope, Volume 4, Issue 2, February 2026.Aromaticity‐based electrode materials have received substantial interest in recent years. Herein, a naphtho‐tetraoxa[8]circulene (N‐TOC) is introduced, its electrochemical performance is investigated, and its charge‐storage mechanism through aromaticity switching described by computational calculations.
Patrick W. Fritz +7 more
wiley +1 more source
5-(4-Bromobenzylidene)-5H-dibenzo[a,d][7]annulene
Acta Crystallographica Section E, 2008 The tricyclic system of the title compound, C22H15Br, has a concave shape, with a dihedral angle between the benzene ring planes of 48.68 (1)°.
Ren-Hua Zheng
doaj +1 more source
, 2018 In this paper we present a detailed computational study of the electronic structure and optical properties of triply-bonded hydrocarbons with linear, and graphyne substructures, with the aim of identifying their potential in opto-electronic device ...
Chakraborty, Himanshu +2 more
core +3 more sources
Thiophene Derivatives as Versatile Precursors for (Hetero)Arene and Natural Product Synthesis
Angewandte Chemie International Edition, Volume 65, Issue 5, 28 January 2026.Hidden but Powerful: Thiophenes and their saturated analogues have been demonstrated to be versatile C4‐building blocks that can be rapidly applied to natural product synthesis and the construction of functionalized (hetero)arenes. This minireview aims to provide a concise overview of the strategies and implementations of these sulfur‐containing ...
Anna Keimer, Franz‐Lucas Haut
wiley +1 more source