Results 71 to 80 of about 1,102 (170)

2-Methylsulfanyl-1,2,4-triazolo[1,5-a]quinazoline-5(4H)-thione

Acta Crystallographica Section E, 2013
In the title compound, C10H8N4S2, comprising fused six-, six- and five-membered rings, the molecule is close to being planar (r.m.s. deviation of the non-H atoms = 0.041 Å). The S-bound methyl group is folded away from the single N atom of the
Seik Weng Ng, Abd El-Galil E. Amr, Mohamed A. Al-Omar, Mohamed Marzouk, Rashad Al-Salahi, Edward R. T. Tiekink   +5 more
doaj   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source

6-Methyl-7H-1,2,4-triazolo[4,3-b][1,2,4]triazepin-8(9H)-thione

IUCrData, 2016
In the molecule of the title compound, C6H7N5S, the triazole ring is planar, while the triazepine ring displays a boat conformation. The dihedral angle between the mean plane through the triazole and triazepine rings is 18.48 (8)°.
Youness El Bakri, Abdallah Harmaoui, El Mokhtar Essassi, Mohamed Saadi, Lahcen El Ammari   +4 more
doaj   +1 more source

Crystal structures of two isomers of 1-(naphthalen-1-yl)ethanol

Acta Crystallographica Section E: Crystallographic Communications
Crystal structures, Hirshfeld surfaces and energy lattices of (S)-1-(naphthalen-1-yl)ethanol (1) and (R)-1-(naphthalen-2-yl)ethanol (2), both C12H12O, were studied to understand much the lower crystallization propensity of the latter. In both structures,
Christopher Golz
doaj   +1 more source

4,4′-Bipyridine–pyroglutamic acid (1/2)

Acta Crystallographica Section E, 2009
In the title co-crystal, C10H8N2·2C5H7NO3, the 4,4′-bipyridine molecule [dihedral angle between the pyridine rings = 36.33 (11)°] accepts O—H...N hydrogen bonds from the two pyroglutamic (pga) acid ...
Hadi D. Arman, Trupta Kaulgud, Edward R. T. Tiekink   +2 more
doaj   +1 more source

5-Chloro-5′′-[4-(dimethylamino)benzylidene]-4′-[4-(dimethylamino)phenyl]-1′,1′′-dimethyldispiro[indoline-3,2′-pyrrolidine-3′,3′′-piperidine]-2,4′′-dione

Acta Crystallographica Section E, 2014
The title compound, C34H38ClN5O2, has spiro links connecting the pyrrolidine ring and indole residue, as well as the piperidine and pyrrolidine rings.
I. S. Ahmed Farag, Adel S. Girgis, A. A. Ramadan, A. M. Moustafa, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Anthracenemethyl Glycosides as Supramolecular Synthons for Chiral Self-Assembly and as Probes in Cell Imaging. [PDF]

ACS Omega, 2023
George A, Jayaraman N.
europepmc   +1 more source

A systematic structural study of halogen bonding versus hydrogen bonding within competitive supramolecular systems

IUCrJ, 2015
As halogen bonds gain prevalence in supramolecular synthesis and materials chemistry, it has become necessary to examine more closely how such interactions compete with or complement hydrogen bonds whenever both are present within the same system.
Christer B. Aakeröy, Christine L. Spartz, Sean Dembowski, Savannah Dwyre, John Desper   +4 more
doaj   +1 more source

Low-Molecular-Weight Organogelators Based on N-dodecanoyl-L-amino Acids-Energy Frameworks and Supramolecular Synthons. [PDF]

Materials (Basel), 2023
Miroslaw B, Demchuk OM, Luboradzki R, Tyszczuk-Rotko K.   +3 more
europepmc   +1 more source

Crystal structure of (Z)-ethyl 3-[2-(5-methyl-7-nitro-1H-indole-2-carbonyl)hydrazinylidene]butanoate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The reaction of 5-methyl-7-nitro-1H-indole-2-carbohydrazide with ethyl acetoacetate yielded the title molecule, C16H18N4O5, in which the indole ring is almost planar, with the greatest deviation from the mean plane being 0.006 (2) Å.
Amal Errossafi, Abdellatif El Kihel, Salaheddine Guesmi, Mohamed Saadi, Lahcen El Ammari   +4 more
doaj   +1 more source