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Bipyramids

Berlin green, FeFe(CN)mechanism postulated for the interchange of substituents in trigonal-bipyramidal 5-co-ordinate complexes, e g. PF, and its substituted derivatives. berthoUide compound Solid phases showing a range of composition. [Pg.58]

Other examples are iron pentacarbonyl, Fe(CO)s, and chromium hexacarbonyl, Cr(CO)(j, which have trigonal bipyramidal and octahedral configurations respectively. [Pg.179]

The structure of sulphur tetrafluoride, and probably also SeF and TeF4, is trigonal bipyramidal with one position occupied by a lone pair of electrons ... [Pg.306]

Complexes of titanium(III) can be made from the trichloride— these are either approximately octahedral, 6-coordinate (for example TiClj.SL (L = ligand) and [TiCljfHjOj, formed when TiCls dissolves in aqueous hydrochloric acid), or 5-coordinate with a trigonal bipyramid structure. [Pg.372]

Iron forms the carbonyls FelCO),. Fe2(CO)g and FcjlCOlij- In iron pentacarbonyl. the iron(O) is 5-coordinated. as shown in Figure 13.5 to give a trigonal bipyramid the substance is volatile... [Pg.398]

Physical Properties. Sulfur tetrafluoride has the stmcture of a distorted trigonal bipyramid, the sulfur having hybrid sp d orbitals and an unshared electron pair (93). The FSF bond angles have been found to be 101° and 187°, and the bond distances 0.1646 and 0.1545 nm (94). [Pg.243]

Physical Properties. The absorption of x-rays by iodine has been studied and the iodine crystal stmcture deterrnined (12,13). Iodine crystallizes in the orthorhombic system and has a unit cell of eight atoms arranged as a symmetrical bipyramid. The cell constants at 18°C (14) are given in Table 1, along with other physical properties. Prom the interatomic distances of many iodine compounds, the calculated effective radius of the covalently bound iodine atom is 184 pm (15). [Pg.358]

Fig. 1. Berry pseudorotation about pentacoordinate ( ) phosphorus, where (Q) represent fluorine atoms, (a) Original trigonal bipyramid (b) square... Fig. 1. Berry pseudorotation about pentacoordinate ( ) phosphorus, where (Q) represent fluorine atoms, (a) Original trigonal bipyramid (b) square...
The pentahalides of phosphorus, PX, in the gas phase exhibit varying tendencies to dissociate into trihaUde and halogen. InstabiUty increases with increasing ionic radius of the halogen. The pentafluoride appears to be thermally stable. Dissociation of the pentachloride, a few percent at 100°C and 101.3 kPa (1 atm), is essentially completed at 300°C (36). The pentabromide is partially dissociated in the Hquid state and totally dissociated above ca 35°C (39). Pentaiodide does not exist. The molecules of PF and PCl in the vapor phase are trigonal bipyramids. In the crystalline state, both pentachloride and pentabromide have ionic stmctures, ie, [PClJ IPClg] and [PBr4]" PBrJ , respectively. The PX" 4 cations are tetrahedral and the PX anion is octahedral (36,37). [Pg.366]

Experimental results suggest that PCl is dimeric in CCl solution. The stmcture consists of two octahedra sharing edges (56). PCl is monomeric in benzene and apparendy is trigonal bipyramidal (36). SoHd PCl is ionic, consisting of [PCl cations and [PClg ] anions (36). [Pg.371]

Aminophenol. This compound forms white plates when crystallized from water. The base is difficult to maintain in the free state and deteriorates rapidly under the influence of air to pink-purple oxidation products. The crystals exist in two forms. The a-form (from alcohol, water, or ethyl acetate) is the more stable and has an orthorhombic pyramidal stmcture containing four molecules per unit cell. It has a density of 1.290 g/cm (1.305 also quoted). The less stable P-form (from acetone) exists as acicular crystals that turn into the a-form on standing they are orthorhombic bipyramidal or pyramidal and have a hexamolecular unit (15,16,24) (see Tables 3—5). [Pg.309]

A A Diethylamino)phenol. This derivative (16) forms rhombic bipyramidal crystals. Industrial synthesis is analogous to the previously described synthesis of 3-(/V,/V-dimethy1amino)pheno1 from resorciaol and diethylamiae, by reaction of 3-(Ai,A/-diethylamiQo)benzenesulfonic acid with sodium hydroxide, or by alkylation of 3-amiaophenol hydrochloride with ethanol. [Pg.315]

Succinic acid is absorbed from aqueous solutions by anion-exchange resins or active carbon (9—11). Succinic anhydride forms rhombic pyramidal or bipyramidal crystals. It is relatively insoluble in ether, but soluble in boiling chloroform and ethyl acetate. Succinic anhydride reacts with water and alcohols, giving the acid and monoesters, respectively. [Pg.534]

The known uranium(VI) carbonate soHds have empirical formulas, 1102(003), M2U02(C03)2, and M4U02(C03)3. The soHd of composition 1102(003) is a well-known mineral, mtherfordine, and its stmcture has been determined from crystals of both the natural mineral and synthetic samples. Rutherfordine is a layered soHd in which the local coordination environment of the uranyl ion consists of a hexagonal bipyramidal arrangement of oxygen atoms with the uranyl units perpendicular to the orthorhombic plane. Each uranium atom forms six equatorial bonds with the oxygen atoms of four carbonate ligands, two in a bidentate manner and two in a monodentate manner. [Pg.327]


See other pages where Bipyramids is mentioned: [Pg.110]    [Pg.110]    [Pg.180]    [Pg.222]    [Pg.405]    [Pg.405]    [Pg.434]    [Pg.568]    [Pg.2090]    [Pg.38]    [Pg.58]    [Pg.251]    [Pg.374]    [Pg.252]    [Pg.157]    [Pg.331]    [Pg.274]    [Pg.190]    [Pg.23]    [Pg.433]    [Pg.439]    [Pg.501]    [Pg.516]    [Pg.516]    [Pg.516]    [Pg.73]    [Pg.358]    [Pg.358]    [Pg.359]    [Pg.308]    [Pg.163]    [Pg.164]    [Pg.67]    [Pg.325]    [Pg.326]    [Pg.327]    [Pg.327]   
See also in sourсe #XX -- [ Pg.11 , Pg.40 , Pg.148 ]

See also in sourсe #XX -- [ Pg.750 ]

See also in sourсe #XX -- [ Pg.110 , Pg.111 ]

See also in sourсe #XX -- [ Pg.43 ]

See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.193 ]




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Angular overlap model trigonal bipyramidal complexes

Bipyramid

Bipyramid, trigonal

Bipyramidal

Bipyramidal arrangement

Bipyramidal complexes

Bipyramidal complexes pentagonal species

Bipyramidal complexes trigonal species

Bipyramidal configuration

Bipyramidal coordination

Bipyramidal crystals

Bipyramidal plane

Bipyramidal structure

Bipyramidal structure skew-trapezoidal

Bipyramids complexes

Bismuth ligands trigonal bipyramidal complexes

Cluster trigonal bipyramid

Clusters trigonal bipyramidal geometry

Cobalt complexes trigonal bipyramidal

Coordination geometry distorted trigonal bipyramidal

Coordination geometry trigonal bipyramid

Coordination spheres trigonal bipyramidal

Copper trigonal bipyramidal complexes

Distorted trigonal bipyramidal geometry

Electron geometry pentagonal bipyramidal

Electron geometry trigonal bipyramidal

Equilibria of Trigonal Bipyramidal Molecules

Five Electron Groups Trigonal Bipyramidal Geometry

Five-coordinate species pyramidal... trigonal bipyramidal

Heptagonal bipyramid

Hexagonal bipyramid

Hexagonal bipyramid structure

Hexagonal bipyramidal complexes

Hexagonal bipyramidal molecules

Hexagonal bipyramidal species

Hybrid orbitals trigonal bipyramidal

Iron-carbonyl complex trigonal bipyramidal

Isomerization bipyramidal forms

Ligands trigonal bipyramidal centers

Ligands, quadridentate trigonal bipyramidal

Molecular bipyramid

Molecular geometry pentagonal bipyramidal

Molecular geometry trigonal bipyramidal

Molecular shape trigonal bipyramidal arrangement

Molecular shapes pentagonal bipyramid

Molecular structure trigonal bipyramid

Molybdenum complexes trigonal bipyramid

Monocapped trigonal bipyramid

Monocapped trigonal bipyramid tetrahedron

Nickel complex trigonal bipyramidal

Nucleophilic attack trigonal bipyramids

Nucleophilic attack trigonal-bipyramidal transition state

Octahedral-pentagonal bipyramidal

Oxygen Pentagonal bipyramids

Oxygen trigonal bipyramid

Pentagonal bipyramid

Pentagonal bipyramid coordination

Pentagonal bipyramid coordination structures

Pentagonal bipyramid shape

Pentagonal bipyramidal VSEPR

Pentagonal bipyramidal clusters

Pentagonal bipyramidal clusters boranes

Pentagonal bipyramidal complexes

Pentagonal bipyramidal coordination

Pentagonal bipyramidal geometry

Pentagonal bipyramidal shape

Pentagonal bipyramidal structures

Pentagonal bipyramidal structures antimony

Pentagonal bipyramidal transition state

Pentagonal bipyramids

Pentagonal bipyramids seven-coordinate compounds

Pentagonal bipyramids stereochemistry

Pentagonal-Bipyramid Structure

Pentagonal-bipyramidal

Pentagonal-bipyramidal molecules

Phosphorus ligands trigonal bipyramidal complexes

Platinum trigonal-bipyramidal

Pseudo-trigonal bipyramidal complexes

Pseudo-trigonal bipyramidal geometry

Pseudorotation and the Trigonal Bipyramid

Pseudorotation square pyramid/trigonal bipyramid

Pseudotrigonal bipyramid

Reactions trigonal-bipyramidal complexes

Right Bipyramids

Rotation trigonal bipyramidal molecules

Seven-coordinate molecules pentagonal bipyramidal

Shapes with Five Electron Groups (Trigonal Bipyramidal Arrangement)

Square-based bipyramid complex

Square-based bipyramids

Square-based pyramid, trigonal bipyramid

Square-planar substitution reactions trigonal bipyramids

Structures derived from a trigonal bipyramid

Structures, trigonal bipyramidal

Tetragonal bipyramid

Tetragonal bipyramidal systems

Transition metal complexes trigonal bipyramidal

Transitions trigonal bipyramidal geometry

Triangular bipyramidal

Triangular bipyramidal molecular shape

Trigonal Bipyramidal and Octahedral Compounds

Trigonal bipyramid as transition state in pseudorotatio

Trigonal bipyramid complex

Trigonal bipyramid coordination

Trigonal bipyramid coordination structures

Trigonal bipyramid geometry

Trigonal bipyramid hexanuclear complexes

Trigonal bipyramid intermediate

Trigonal bipyramid molecule

Trigonal bipyramid molecule structure

Trigonal bipyramid molecule symmetry

Trigonal bipyramid pentanuclear complexes

Trigonal bipyramid structure

Trigonal bipyramid symmetry factoring

Trigonal bipyramid tetranuclear complexes

Trigonal bipyramid trinuclear complexes

Trigonal bipyramidal

Trigonal bipyramidal VSEPR structure

Trigonal bipyramidal arrangement

Trigonal bipyramidal arrangement VSEPR

Trigonal bipyramidal arrangement defined

Trigonal bipyramidal arrangement hybrid orbitals

Trigonal bipyramidal arrangement of

Trigonal bipyramidal clusters

Trigonal bipyramidal clusters Zintl ions

Trigonal bipyramidal clusters boranes

Trigonal bipyramidal complexe

Trigonal bipyramidal complexes

Trigonal bipyramidal complexes and

Trigonal bipyramidal complexes configuration

Trigonal bipyramidal complexes reactivity

Trigonal bipyramidal configuration

Trigonal bipyramidal coordination

Trigonal bipyramidal crystal field, splitting

Trigonal bipyramidal crystal field, splitting orbitals

Trigonal bipyramidal diaryltellurium

Trigonal bipyramidal electron-group arrangement

Trigonal bipyramidal electronic geometry

Trigonal bipyramidal environment

Trigonal bipyramidal geometry

Trigonal bipyramidal geometry VSEPR

Trigonal bipyramidal geometry, copper

Trigonal bipyramidal geometry, copper complexes

Trigonal bipyramidal intermediate substitutions

Trigonal bipyramidal intermediates

Trigonal bipyramidal molecular

Trigonal bipyramidal molecular shape

Trigonal bipyramidal molecular shape 260 table

Trigonal bipyramidal molecular structure

Trigonal bipyramidal molecules

Trigonal bipyramidal orbitals

Trigonal bipyramidal pentacoordination

Trigonal bipyramidal phosphorus

Trigonal bipyramidal shape

Trigonal bipyramidal species

Trigonal bipyramidal structur

Trigonal bipyramidal transition state

Trigonal bipyramidal transition state in octahedral substitution reactions

Trigonal bipyramidal transition state in square planar substitution reactions

Trigonal bipyramidal transition state intermediate

Trigonal bipyramidal/octahedral

Trigonal bipyramidal/octahedral structures

Trigonal bipyramidal/square-based pyramid

Trigonal bipyramids

Trigonal bipyramids five-coordinate compounds

Trigonal bipyramids live-coordinate compounds

Trigonal-bipyramidal ML5 complexes

Trigonal-bipyramidal geometry preferences

VSEPR model trigonal bipyramidal

Valence electrons trigonal bipyramidal

Valence-shell electron-pair repulsion trigonal bipyramidal arrangement

Vanadium trigonal bipyramidal coordination

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