نتایج جستجو برای: n hexane
تعداد نتایج: 977930 فیلتر نتایج به سال:
In the title compound, C16H22O2, the cyclo-hexane ring adopts a chair conformation and its mean plane subtends a dihedral angle of 54.2 (6)° with the benzene ring. The crystal structure is stabilized by van der Waals inter-actions only with no classical inter-molecular hydrogen bonding observed.
For many years, commercial-grade hexane has been the preferred solvent for extracting oil from cottonseed. Recent environmental and health concerns about hexane may limit the use of this solvent; therefore, the need for a replacement solvent has become an important issue. Heptane is similar to hexane, but does not have the environmental and health concerns associated with the latter. On a labor...
The NMR spectrum of n-hexane orientationally ordered in the nematic liquid crystal ZLI-1132 is analysed using covariance matrix adaptation evolution strategy (CMA-ES). The spectrum contains over 150 000 transitions, with many sharp features appearing above a broad, underlying background signal that results from the plethora of overlapping transitions from the n-hexane as well as from the liquid...
OBJECTIVE This study was aimed to determine the effects of n-hexane on the maturation of mouse oocytes. METHODS Cell culture was used to observe the maturation of mouse oocytes and CLSM was employed to determine their apoptosis. RESULTS Germinal vesicle breakdown (GVBD) and extrusion of the first polar body in mouse oocytes were significantly inhibited by n-hexane. After fertilization, the ...
In the title mol-ecule, C(34)H(53)BrO(4), all the cyclo-hexane rings adopt chair conformations, while the cyclo-pentane ring adopts an envelope conformation. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into corrugated sheets parallel to the ab plane.
The title compound, C(13)H(16)O(2)Si, was synthesized as a precursor for ethynylarene derivatives and crystallized from hexane. In the crystal structure, mol-ecules are linked by weak C-H⋯O hydrogen bonds to form chains that pack in layers in a herringbone fashion.
In the title compound, [Zn(C(6)H(14)N(2))(2)(H(2)O)(2)]Cl(2), the Zn(II) atom resides on a special position with site symmetry 2/m and is octa-hedrally coordinated by four N atoms from two trans 1,2-diamino-cyclo-hexane ligands and two water O atoms. In the crystal, N-H⋯Cl and O-H⋯Cl hydrogen bonds link the mol-ecules into a two-dimensional network parallel to the bc plane.
In the title compound, C(19)H(22)Cl(2)O(3), the cyclo-hexane ring adopts a chair conformation. The furan ring plane forms dihedral angles of 81.88 (2) and 50.19 (3)°, respectively, with the benzene ring and the plane formed by the butyl C atoms. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
In the title compound, C(25)H(30)O, the adamantane cage consists of three fused cyclo-hexane rings in classical chair conformations, with C-C-C angles in the range 107.15 (9)-111.55 (9)°. The dihedral angle between the benzene rings is 46.91 (4)° and the conformation is stabilized by a weak intra-molecular C-H⋯π inter-action.
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