Publication

Al5Br7.5THF - the first saltlike aluminum subhalide

2000
Journal Articles

Abstract

Cocondensation of the high-temp. mol. AlBr with a PhMe/THF mixt. gave a colorless, brittle compd. of the compn. Al5Br7.5THF which from x-ray structural anal. can be formulated as [Al(AlBr.2THF)2(AlBr2.THF)2]+[Al(AlBr2.THF)4]- (I). I triclinic, space group , Z = P.hivin.1, R1 = 0.0546, wR2 = 0.1366. The central Al in both the cation and anion is tetrahedrally surrounded by 4 Al atoms. The mol. structure of I was calcd. by DFT methods. I decomps. on warming to 100 Deg. The mechanism for the formation of I is discussed. Al2I4.2THF (II) was obtained from AlI in a PhMe/THF mixt. II is orthorhombic, space group Pca21, Z = 4, R1 = 0.0428, wR2 = 0.1089. II displays the typical D.X2Al-AlX2.D structure. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/cdfc86b8-b657-4306-a54e-493820d6b30d

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2000
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cdfc86b8-b657-4306-a54e-493820d6b30d

About this result

Related concepts (12)

Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the ordinary convex polyhedra. The tetrahedron is the three-dimensional case of the more general concept of a Euclidean simplex, and may thus also be called a 3-simplex. The tetrahedron is one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point.

600-cell

In geometry, the 600-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol {3,3,5}. It is also known as the C600, hexacosichoron and hexacosihedroid. It is also called a tetraplex (abbreviated from "tetrahedral complex") and a polytetrahedron, being bounded by tetrahedral cells. The 600-cell's boundary is composed of 600 tetrahedral cells with 20 meeting at each vertex. Together they form 1200 triangular faces, 720 edges, and 120 vertices.

120-cell

In geometry, the 120-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol {5,3,3}. It is also called a C120, dodecaplex (short for "dodecahedral complex"), hyperdodecahedron, polydodecahedron, hecatonicosachoron, dodecacontachoron and hecatonicosahedroid. The boundary of the 120-cell is composed of 120 dodecahedral cells with 4 meeting at each vertex. Together they form 720 pentagonal faces, 1200 edges, and 600 vertices.

Related publications (1)

Al5Br7.5THF - the first saltlike aluminum subhalide

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Tilings of the time-frequency plane: construction of arbitrary orthogonal bases and fast tiling algorithms