نتایج جستجو برای: monoclinic crystal
تعداد نتایج: 161019 فیلتر نتایج به سال:
The title compound, C18H18O4, is a triclinic polymorph of the previously reported monoclinic polymorph [Han & Zhen (2005 ▶). Acta Cryst. E61, o4358-o4359]. In the crystal of the triclinic polymorph, molecules are linked by two pairs of C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to (102), and enclosing loops with graph set motifs of R2(2)(8) and R2(2)(6).
A new thiosemicarbzone compound was prepared by the reaction of acenaphthenequinone and thiosemicarbazide (1:1 molar ratio) in absolute methanol at 70°C. The crystal structure of this compound, acenaphthenequinone thiosemicarbazone mono methanol, was determined by X-ray crystallography. The unit cell parameters are as follows: a = 7.0384(14) Ǻ, b = 14.202(3) Ǻ, c = 14.270(3) Ǻ, β = 104.26(3)°. ...
The Crystal Structure of I H ~ )CH2 COC(>Hs has been determined by direct method (Sir). The dimensions of used cry:,tal were 0.7 x 0.3 x 0.2 mm. TIle molecular structure has been determined by MolEN program. This compound crystalizc.s in monoclinic space group P2t /n (14) with four molecules per unit cell. Lattice parameters of this ...
[Cd(NO)z(u rea)4J was synthesized by reaction of cadmium nitrate and urea under certain conditions. The dimensions of used crystal were O.47xO.40x0.58 mm. The molecular structure has been determined by SHELX-86 program. This complex crystalizes in monoclinic space group P2}/a with two molecules per uni. cell. Lattice parameters of this compound are: a~7.6060 A b~12.7740 A c~9.0370 A P~ll...
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