Results 91 to 100 of about 6,682,702 (328)

Supramolecular Chemistry in Metal–Organic Framework Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights synergies between reticular chemistry and supramolecular chemistry. The role of supramolecular interactions in determining framework…guest interactions and attempts to understand dynamic behavior in metal–organic frameworks (MOFs), particularly emphasizing the development of crystal sponges, studying reactions in frameworks and ...
Eugenia Miguel‐Casañ   +3 more
wiley   +1 more source

(E)-1-(Anthracen-9-yl)-3-(2-chloro-6-fluorophenyl)prop-2-en-1-one: crystal structure and Hirshfeld surface analysis

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C23H14ClFO, the enone moiety adopts an E conformation. The dihedral angle between the benzene and anthracene ring is 63.42 (8)° and an intramolecular C—H...F hydrogen bond generates an S(6) ring motif. In the crystal, molecules are
Amzar Ahlami Abdullah   +4 more
doaj   +1 more source

Can Europium Atoms form Luminescent Centres in Diamond: A combined Theoretical-Experimental Study

open access: yes, 2019
The incorporation of Eu into the diamond lattice is investigated in a combined theoretical-experimental study. The large size of the Eu ion induces a strain on the host lattice, which is minimal for the Eu-vacancy complex.
Haenen, Ken   +4 more
core   +1 more source

Synthesis, characterization, biological activity, DFT and Hirshfeld surface studies of Pd(II) and Pt(II)-1-cyclohexyl-3-phenylthiourea and amine ligands

open access: yesBulletin of the Chemical Society of Ethiopia
A series of mixed ligand complexes of Pd(II) and Pt(II) of 1-cyclohexyl-3-phenylthiourea and diamine ligands {2,2'-bipyridyl (Bipy) and 1,10-phenanthroline (Phen)} were prepared and characterized by FT-IR, NMR spectroscopy, molar conductivity.
Wesam H Khalaf   +5 more
semanticscholar   +1 more source

Free‐Standing Supramolecular Pyridine N‐Oxide‐Silver(I) Metallogels

open access: yesAdvanced Materials, EarlyView.
A comprehensive analysis of pyridine N‐oxide‐silver(I) trifluoroacetate complexes reveals remarkable mechanical strengths that enable the creation of free‐standing objects with shape control, reaching dimensions of up to centimeters and shedding new insights into the gelation mechanisms.
Rakesh Puttreddy   +8 more
wiley   +1 more source

Divergent Synthesis and Crystal Engineering of Room‐Temperature Phosphorescent Carbonyl‐Bridged Triphenylamines

open access: yesAngewandte Chemie, EarlyView.
Solid state packing of triphenylamine derivatives is modulated by the variation of aryl bridges, endowing a wide diversity of luminescence properties. Closely packed, parallel structures induce room temperature phosphorescence (RTP) dominated spectra with long RTP lifetimes (τPh), while nonparallel, more spaced motifs result in competitive fluorescence
Cory Ruchlin   +6 more
wiley   +2 more sources

Electronic properties of silica nanowires

open access: yes, 2006
Thin nanowires of silicon oxide were studied by pseudopotential density functional electronic structure calculations using the generalized gradient approximation. Infinite linear and zigzag Si-O chains were investigated.
Chelikowsky J R   +8 more
core   +2 more sources

Distribution of Caustic-Crossing Intervals for Galactic Binary-Lens Microlensing Events [PDF]

open access: yes, 1999
Detection of caustic crossings of binary-lens gravitational microlensing events is important because by detecting them one can obtain useful information both about the lens and source star.
Han, Cheongho   +2 more
core   +2 more sources

Synthesis, crystal structure, Hirshfeld surface investigation and comparative DFT studies of ethyl 2-[2-(2-nitrobenzylidene)hydrazinyl]thiazole-4-carboxylate

open access: yesBMC Chemistry, 2022
The ethyl 2-[2-(2-nitrobenzylidene)hydrazinyl]thiazole-4-carboxylate ( 1 ), a thiazole ester, was synthesized by refluxing 1-(2-nitrobenzylidene)thiosemicarbazide and ethyl bromopyruvate.
Muhammad Haroon   +7 more
semanticscholar   +1 more source

Ion Valency as a Molecular Switch for Salt‐Resistant Underwater Adhesion

open access: yesAdvanced Materials, EarlyView.
Monovalent K+ ions weaken adhesion by forming K+‐π complexes with weak bridging capacity. In contrast, multivalent cations like Y3+ enhance adhesion by forming stable π‐cation‐π bridging networks, which are resistant to salt and capable of compensating for the loss of native π–π and NH3+‐π interactions.
Chang‐Sheng Wang   +13 more
wiley   +1 more source

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