Tetraethylammonium 12-phenylethynylcarba-closo-dodecaborate, [Et4N][12-PhCC-closo-CB11H11]
نویسندگان
چکیده
The asymmetric unit of the title compound, C(8)H(20)N(+)·C(9)H(16)B(11) (-) or [Et(4)N][12-PhCC-closo-CB(11)H(11)], consists of one cation and one anion. The [12-PhCC-closo-CB(11)H(11)](-) anion is close to possessing a non-crystallographic plane of mirror symmetry with a nearly linear B-C C-C group, with B-C C and C C-C angles of 177.15 (16) and 176.64 (17)°, respectively.
منابع مشابه
Polyfluorinated carba-closo-dodecaboranes with amino and ammonio substituents bonded to boron.
The inner salts x-H3N-closo-1-CB11H11 (x = 12, 2) and 7-H3N-12-F-closo-1-CB11H11 were fluorinated with elemental fluorine in anhydrous hydrogen fluoride to give the B-perfluorinated ammonio derivatives 1-H-x-H3N-closo-1-CB11F10 (x = 12, 7, 2). Deprotonation of the ammonio group yielded the corresponding amino-functionalized anions [1-H-x-H2N-closo-1-CB11F10](-) (x = 12, 7, 2) that were isolated...
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Experimental data on the mutual rearrangements of isomeric dicarba-closododecaboranes(12) and their B-halogen derivatives are reviewed. Reactions involving electron transfer to dicarba-closo-dodecaboranes(12), and the properties of the resulting dodecahydrodicarba-nido-dodecaborates(2 —) as intermediates of the rearrangements of 1.7and 1,12-dicarba-closo-dodecaboranes(12) are discussed. Attenti...
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In the asymmetric unit of the title salt, C(3)H(9)S(+)·CH(2)B(11)FI(10)N(-) or (CH(3))(3)S[1-H(2)N-6-F-closo-1-CB(11)I(10)], both ions lie in general positions. The anion is perfectly ordered and so the positions of the C-NH(2) vertex and the fluorine substituent are clearly assigned. The relatively short C-N bond length may be inter-preted in terms of a very electron deficient {closo-1-CB(11)}...
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Two formula units of the title compound, 2-H(3)N-closo-1-CB(11)H(11)·CH(3)CH(2)OH or CH(14)B(11)N·C(2)H(5)OH, form a ring motif of R(4) (2)(8) type in the solid state that surrounds a crystallographic center of symmetry. The ring motif is a result of N-H⋯O hydrogen bonds. In contrast to many structures of {closo-1-CB(11)} clusters, the assignment of the position of the cluster C atom in the str...
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In the title compound, C8H20N(+)·C3H10B11N2 (-), the carborane anion cage displays nearly-perfect Cs symmetry, with the two CN groups lying on a noncrystallographic mirror plane that bis-ects the cage. In the crystal, the anions form extended chains along the a-axis direction, with C-H⋯N hydrogen bonds linking consecutive anions. The C N bond lengths (and B-C N angles) in the nitrile moities ar...
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