Results 41 to 50 of about 5,850 (197)

Crystal structure and Hirshfeld surface analysis of 4,5-dibromo-6-methyl-2-phenyl-2,3,3a,4,5,6,7,7a-octahydro-3a,6-epoxy-1H-isoindol-1-one

Acta Crystallographica Section E: Crystallographic Communications, 2021
In the title compound, C15H15Br2NO2, two bridged tetrahydrofuran rings adopt envelope conformations with the O atom as the flap. The pyrrolidine ring also adopts an envelope conformation with the spiro C atom as the flap.
Dmitriy F. Mertsalov, Maryana A. Nadirova, Lala V. Chervyakova, Mikhail S. Grigoriev, Evgeniya R. Shelukho, Sevim Türktekin Çelikesir, Mehmet Akkurt, Sixberth Mlowe   +7 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of 2-aminopyridinium hydrogen phthalate [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2019
Aminopyridine and phthalic acid are well known synthons for supramolecular architectures for the synthesis of new materials for optical applications. The 2-aminopyridinium hydrogen phthalate title salt, C5H7N2 +·C8H5O4 −, crystallizes in the non-centrosymmetric space group P21.
V. Siva, M. Suresh, S. Athimoolam, S. Asath Bahadur   +3 more
openaire   +3 more sources

3-{(E)-[4-(4-Hydroxy-3-methoxyphenyl)butan-2-ylidene]amino}-1-phenylurea: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
Two independent molecules (A and B) comprise the asymmetric unit of the title compound, C18H21N3O3. The urea moiety is disubstituted with one amine being linked to a phenyl ring, which is twisted out of the plane of the CN2O urea core [dihedral angles ...
Ming Yueh Tan, Karen A. Crouse, Thahira B. S. A. Ravoof, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

A new pseudopolymorph of berberine chloride: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E Crystallographic Communications, 2022
A new pseudopolymorph of berberine, 9,10-dimethoxy-5,6-dihydro-2H-7λ5-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ylium chloride methanol monosolvate, C20H18NO4 +·Cl−·CH3OH, was obtained during co-crystallization of berberine chloride with malonic acid from methanol.
Tatiana Kornilova, Viktor Glebov, Raúl Castañeda, Tatiana V. Timofeeva   +3 more
openaire   +3 more sources

Undecacarbonyl[(4-methylsulfanylphenyl)diphenylphosphane]triruthenium(0): crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title cluster compound, [Ru3(C19H17PS)(CO)11], comprises a triangle of Ru0 atoms, two of which are bonded to four carbonyl ligands. The third metal atom is bound to three carbonyl ligands and the phosphane-P atom of a dissymmetric phosphane ligand ...
Omar bin Shawkataly, Hafiz Malik Hussien Abdelnasir, Siti Syaida Sirat, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

(E)-3-{[(2-Bromo-3-methylphenyl)imino]methyl}benzene-1,2-diol: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C14H12BrNO2, was synthesized by the condensation reaction of 2,3-dihydroxybenzaldehyde and 2-bromo-3-methylaniline. It crystallizes in the centrosymmetric triclinic space group P\overline{1}. The configuration about the C=N bond is E.
Onur Erman Doğan, Necmi Dege, Erbil Ağar, Igor O. Fritsky   +3 more
doaj   +1 more source

12-(3,4,5-Trimethoxyphenyl)-2,3,4,12-tetrahydro-1H-5-oxatetraphen-1-one: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C26H24O5, the pyran ring has a flattened-boat conformation, with the 1,4-related ether O and methine C atoms lying 0.1205 (18) and 0.271 (2) Å, respectively, above the least-squares plane involving the doubly bonded C atoms (r.m.s ...
Mukesh M. Jotani, P. Iniyavan, V. Vijayakumar, S. Sarveswari, Yee Seng Tan, Edward R. T. Tiekink   +5 more
doaj   +1 more source

Lead‐Free Chiral Hybrid Metal Halides for Circularly Polarized Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Lead‐free chiral hybrid metal halides provide a versatile platform for realizing chiroptical responses through chiral modulation of metal–halide frameworks with diverse dimensionalities, induces inversion‐symmetry breaking and enables dissymmetric excited‐state transitions toward efficient circularly polarized luminescence and electroluminescence. This
Kun Zhu, Li Wan
wiley   +1 more source

Peroxide‐Assisted Solvate Engineering Enables Record‐High Birefringence in a Solar‐Blind Transparent Crystal

Angewandte Chemie, EarlyView.
H2O2‐directed solvate engineering reorganizes ∞[4HP] (4‐hydroxypyridine) chains from a crossed arrangement into a nearly parallel packing through strengthened hydrogen‐bonding interactions. The resulting peroxide‐containing crystal, 4HP·H2O2, exhibits a solar‐blind UV cutoff edge (278 nm) and giant birefringence (0.609 @ 546 nm). This work demonstrates
Yang Li, Congcong Jin, Kang Min Ok
wiley   +2 more sources

4-(4-Acetyl-5-methyl-1H-1,2,3-triazol-1-yl)benzonitrile: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound, C12H10N4O, comprises a central 1,2,3-triazole ring (r.m.s. deviation = 0.0030 Å) flanked by N-bound 4-cyanophenyl and C-bound acetyl groups, which make dihedral angles of 54.64 (5) and 6.8 (3)° with the five-membered ring, indicating ...
Julio Zukerman-Schpector, Cássio da S. Dias, Ricardo S. Schwab, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source