Synthesis, Characterization, and Crystal Structure of 3,3,6,6-Tetramethyl-9-(4-Methoxyphenyl)-10-(4-Chlorophenyl)-1,8-Dioxodecahydroacridine Dimethyl Sulfoxide

2021 ◽  
Vol 66 (7) ◽  
pp. 1227-1232
Author(s):  
V. Sharma ◽  
S. Sharma ◽  
S. Paul ◽  
V. K. Gupta
2021 ◽  
Vol 236 (3) ◽  
pp. 523-525
Author(s):  
Huizhi Cao ◽  
Mi Yan ◽  
Shiliang Huang ◽  
Xuan He ◽  
Xiong Cao

Abstract C16H11N5O10S, triclinic, P 1 ‾ $P‾{1}$ (no. 2), a = 4.6658(1) Å, b = 12.2129(4) Å, c = 17.0355(5) Å, α = 74.925(2)°, β = 86.398(2)°, γ $\gamma $  = 88.040(2)°, V = 935.31(5) Å3, Z = 2, R gt (F) = 0.0642, wR ref (F 2) = 0.1744, T = 295 K.


2020 ◽  
Vol 235 (2) ◽  
pp. 501-502
Author(s):  
Abdulrahman M. Al-Obaid ◽  
Saeed Ali Syed ◽  
Bari Ahmed ◽  
Eric C. Hosten

AbstractC8H6N4O3 ⋅ C2H6OS, orthorhombic, Pnma (no. 62), a = 10.4813(5) Å, b = 6.8663(4) Å, c = 17.2605(9) Å, V = 1242.20(11) Å3, Z = 4, Rgt(F) = 0.0506, wRref(F2) = 0.1590, T = 200(2) K.


Author(s):  
Kwang Ha

Abstract C40H40Mn2N8O6PtS2, monoclinic, P21/n (no. 14), a = 10.5707(3) Å, b = 18.5331(5) Å, c = 12.0293(3) Å, β = 114.6276(10)°, V = 2142.26(10) Å3, Z = 2, R gt (F) = 0.0148, wR ref (F 2) = 0.0380, T = 223 K.


2000 ◽  
Vol 215 (1) ◽  
pp. 91-92 ◽  
Author(s):  
X. Q. Wang ◽  
W. T. Yu ◽  
D. Xu ◽  
D. R. Yuan ◽  
Μ. K. Lu ◽  
...  

2012 ◽  
Vol 68 (8) ◽  
pp. o2357-o2357 ◽  
Author(s):  
María-Guadalupe Hernández Linares ◽  
Sylvain Bernès ◽  
Marcos Flores-Alamo ◽  
Gabriel Guerrero-Luna ◽  
Anselmo A. Martínez-Gallegos

Diosgenin [or (22R,25R)-spirost-5-en-3β-ol] is the starting material of the Marker degradation, a cheap semi-synthesis of progesterone, which has been designated as an International Historic Chemical Landmark. Thus far, a single X-ray structure for diosgenin is known, namely its dimethyl sulfoxide solvate [Zhanget al.(2005).Acta Cryst.E61, o2324–o2325]. We have now determined the structure of the hemihydrate, C27H42O3·0.5H2O. The asymmetric unit contains two diosgenin molecules, with quite similar conformations, and one water molecule. Hydroxy groups in steroids and water molecules form O—H...O hydrogen-bondedR54(10) ring motifs. Fused edge-sharingR(10) rings form a backbone oriented along [100], which aggregates the diosgenin molecules in the crystal structure.


2018 ◽  
Vol 32 (19) ◽  
pp. 1840041
Author(s):  
Yohei Yamada ◽  
Shota Toyama ◽  
Tomoki Yabutani

The effects of solvents on the structural stability of cross-linked lysozyme crystals were investigated by an immersion test using alkaline (0.1 M ammonia [NH3] and 0.1 M sodium hydroxide [NaOH]), acidic (0.1 M acetic acid [CH3COOH] and 0.1 M hydrochloric acid [HCl]) and organic (50% [v/v] and undiluted ethanol, acetone, 2-propanol and dimethyl sulfoxide [DMSO]) solvents. The morphology and lattice constants were monitored by optical microscopy and X-ray crystallography. The cross-linked crystals exhibited good stability against NH3, CH3COOH, HCl, ethanol, acetone and 2-propanol. However, samples preserved in DMSO and NaOH were severely degraded.


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