نتایج جستجو برای: acenaphthene 12 dione
تعداد نتایج: 586079 فیلتر نتایج به سال:
In the title compound, C(16)H(12)FNO(3), the dihedral angle between the benzene ring and the plane of the indole ring system is 71.60 (6)°. In the crystal, mol-ecules stack along the b axis through π-π inter-actions between the adjacent indole-2,3-dione units with a centroid-centroid distance of 3.649 (3) Å. Inter-molecular C-H⋯O=C and C-H⋯π inter-actions further stabilize the structure, formin...
Occurrence of emerging organic micropollutants in water bodies and their effects are a concern related to quality reused water. Advanced oxidation processes have demonstrated promising results address this challenge. Nonetheless, these may lead the generation more toxic by-products. The aim study was investigate coupling ozonation nanofiltration (NF) applied carbamazepine (CBZ). It consisted mo...
The natural polyoxygenated steroids (20S)-20-hydroxycholestane-3,16-dione (1), (16S, 20S)16,20-dihydroxycholestan-3-one (2), (20S)-20-hydroxycholest-1-ene-3,16-dione (3) and (20S)-20hydroxycholest-4-ene-3,16-dione (4), isolated from the gorgonian, Leptogorgia sarmentosa and unnatural analogs (5) (6), (12) and (13) were synthesized from tigogenin. Antitumor activity against three tumor cell line...
In the title compound, C(21)H(16)N(2)O(2), the five-membered heterocyclic ring makes a dihedral angle of 47.06 (6)° with the attached benzene ring, whereas the indan-1,3-dione ring system and the benzene ring are oriented at a dihedral angle of 21.92 (7)°. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(22) loops. Aromatic π-π stacking inter-actions [c...
The synthesis of C2-symmetrical bis(β-enamino-pyran-2,4-dione) derivative 3 connected via 1,6-hexylene linker was reported for the first time. X-ray structures and Hirshfeld studies new bis- β-enamino-pyran-2,4-dione along with two structurally related pyran-2,4-dione derivatives 2a,b were discussed. A comparative analysis different intermolecular contacts affecting crystal stability presented....
The proliferation of malware in recent years has motivated the need for tools to detect, analyze, and understand intrusions. Though analysis and detection can be difficult, malware fortunately leaves artifacts of its presence on disk. In this paper, we present Dione, a flexible policy-based disk I/O monitoring and analysis infrastructure that can be used to analyze and understand malware behavi...
THE CRYSTAL STRUCTURE OF NILUTAMIDE [SYSTEMATIC NAME: 5,5-dimethyl-3-[4-nitro-3-(trifluoro-meth-yl)phen-yl]imidazolidine-2,4-dione], C(12)H(10)F(3)N(3)O(4), was determined at 150 K. The dihedral angle between the mean planes through the imidazoline [maximum deviation = 0.0396 (14) Å] and benzene rings is 51.49 (5)°. The mol-ecule exhibits inter-molecular hydrogen bonding via N-H⋯O inter-actions...
In the structure of the title salt, C(12)H(7)N(2)O(2) (+)·CF(3)SO(3) (-), the cation participates in hydrogen bonding with the dione group of an adjacent cation as well as with the trifluoro-methane-sulfonate anion. In addition, there is an extensive network of C-H⋯O inter-actions between the cations and anions. There are two formula units per asymmetric unit. The crystal studied exhibits inver...
THE TITLE COMPOUND [SYSTEMATIC NAME: 2-(imidazol-1-ylmeth-yl)isoindole-1,3-dione], C(12)H(9)N(3)O(2), was prepared by reaction of N-(bromo-meth-yl)phthalimide and imidazole in chloro-form solution. The crystal structure is stabilized by weak inter-molecular C-H⋯π inter-actions and inter-molecular π-π inter-actions with centroid-centroid distances in the range 3.6469 (8)-3.8831 (9) Å.
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