Structure of Aluminium Trimethyl
نویسندگان
چکیده
منابع مشابه
Crystal structure of 1,3,5-trimethyl-2,4-dinitrobenzene
In the title compound, C9H10N2O4, the planes of the nitro groups subtend dihedral angles of 55.04 (15) and 63.23 (15)° with that of the aromatic ring. These tilts are in opposite senses and the mol-ecule possesses approximate mirror symmetry about a plane normal to the mol-ecule. In the crystal, mol-ecules form stacks in the [100] direction with adjacent mol-ecules related by translation, altho...
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In the title compound, C17H15BrO3S, the dihedral angle between the planes of the benzo-furan ring system [r.m.s. deviation = 0.016 (2) Å] and the 2-bromo-phenyl ring is 82.93 (6)°. In the crystal, mol-ecules are linked via pairs of C-H⋯π hydrogen bonds and π-π inter-actions between the benzene and furan rings of neighbouring mol-ecules [centroid-centroid distance = 3.881 (2) Å] into inversion-r...
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In the title compound, C17H15BrO3S, the dihedral angle between the planes of the benzo-furan ring system [r.m.s. deviation = 0.015 (2) Å] and the 4-bromo-phenyl ring is 89.29 (6)°. In the crystal, mol-ecules are linked into a chain along the b-axis direction by C-H⋯π hydrogen bonds and C-Br⋯π [3.626 (1) Å] inter-actions.
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The reaction of bis(lithiomethyl-methylamino)methane with ditbutylaluminium chloride leads to the formation of 3,3,6,6-tetra-tbutyl-1,4-dimethyl-3,6-dialumina-1,4-diaza-norbornane by simultaneous formation of two metal-carbon and two metal nitrogen bonds accompanied by two ring closure reactions. The compound was identified by an NMR analysis (1H, 13C, 27Al) and by determination of its crystal ...
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The probable reasons for evolution of weld porosity and solidification cracking and the structure- property relationship in aluminium welds were investigated. Aluminium plates (1xxx series) were welded by Tungsten Inert Gas (TIG) welding process, 5356 filler metal was used and heat input was controlled by varying welding current (145A, 175A and 195A). The welded samples were examined under opti...
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ژورنال
عنوان ژورنال: Nature
سال: 1945
ISSN: 0028-0836,1476-4687
DOI: 10.1038/155269a0