Bismuth, tris structure

Bismuth, tris(dipropyldithiophosphonium)-stereochemistry, 1, 81 Bismuthate, hexabromo-structure, 1,73 Bismuthate, hexachloro-structure, 1, 73 Bismuthate, hexaiodo-structure, 1, 73... 

A variety of derivatives of bis-[Bi(tr)2X, X = Cl or N03], tris-(Bitr3), and tetra-([Bi(tr)4X][Na]) tropolonate complexes of bismuth (178, 179) have been prepared and spectroscopically characterized (176, 177, 180). Solid-state structures for examples of bis-(tropolonate) derivatives confirm the chelate interaction (171) and in the case of the nitrate derivative, reveal intermolecular alkoxide-bismuth [Bi-0 2.688 and 2.666 A] dimer contacts 52, which are slightly longer than the chelate bonds [Bi-0 2.130-2.323 A],... 

Bismuth tritelluride, 4 24 physical properties of, 4 20t Bismuth trithiocyanate, 4 25 Bismuth Vanadate Yellow, 19 405-406 pigment for plastics, 7 370t Bismuthyl carbonate hemihydrate, 4 25 Bismuthyl nitrate hemihydrate, 4 25 Bismuthyl nitrite hemihydrate, 4 25 Bis(lV-maleimidomethyl) ether (BME), hemoglobin modifier, 4 113 Bisoprolol fumarate, molecular formula and structure, 5 156t Bis(pentafluorophenyl)borane, 13 638 Bis(pentafluorophenyl)tri-4-tolylbismuth, 4 35... 

Choosing divalent and trivalent cations and determining the composition is the most important in designing the multicomponent bismuth molybdate catalyst system. Catalytic activities of typical tri- and tetracomponent bismuth molybdate catalysts having multiphase structure were reported for the oxidation of propylene to form acrolein (35, 36, 40-43, 97, 98). A typical example of the activity test is shown in Fig. 6. Summarizing the results shown in Fig. 6 and reported previously (30, 43, 44), the following trends are generally found. 

Tris(pentafluorphenyl)bismuth difluoride Bi (CgF5)3F2, which cocrystallizes with two molecules of tris(pentafluorophenyl)bismuth (see Figure 12), has an almost regular trigonal bipyramidal structure (equatorial Bi—C 2.28 A, axial Bi—F 2.088 A), with short intermolecular contacts (Bi F 2.759 A) between the axial fluorine atoms and the bismuth atoms of Bi... 

Organobismuth ate complexes have similar distorted trigonal bipyramidal structures with an empty space in the equatorial plane. Typical examples include tetraethylammonium l,l -spirobis[(3,3-bis(trifluoromethyl)-3//-2,l-benzoxabismole] [92TL6653, 95HAC293] (Table 6.5, 30), [isopropyldithio-carbonato-5]diphenylbismuthine [80ZAAC(470)171] (Table 6.5, 32), bis(tri-phenylphosphine)iminium dichloro(2,2 -biphenylene)bismuthate [960M887] (Table 6.5, 39), and tetraphenylphosphonium dibromodiphenylbismuthate [92JCS(D)1967] (Table 6.5, 46). 

A,A,A, A -tetramethylethylenediammonium (trifluoroacetato-0,0 )tris(tri-fluoroacetato-(9)phenylbismuthate [93AG(E)589] (Table 6.5, 54) has a pentagonal pyramidal structure. There are five short 0-Bi bonds in this compound, and five oxygen atoms are located almost in one plane containing the bismuth atom. 

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