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The [Re 2 Cl 8] 2− anion has a weak electrophilic character. [9] [1] With the configuration, Re(III) is well suited to engage in quadruple bonding. Electrons are allocated to give the configuration σ 2 π 4 δ 2, resulting in a bond order of 4 between the rhenium centers. The brilliant color of the [Re 2 Cl 8] 2− arises from the δ→δ ...
Free Re 2 (CO) 10 (point symmetry D 4d) has a CO stretch representation of 2A 1 +E 2 + E 3 + 2B 2 +E 1, where 2B 2 + E 1 are IR active. For an axially perturbed (C 4v ) Re 2 (CO) 10 molecule, the CO stretch representation was found to be 2E+B 1 +B 2 +3A 1 , where the IR active modes are 2E+3A 1 .
Re + 2 S → ReS 2 Re 2 S 7 → 2 ReS 2 + 3 S. Rhenium diselenide (ReSe 2) also has a layered structure, although, contrary to the other dichalcogenides, rhenium ditelluride does not. [16] In addition, rhenium also forms a heptoxide, which can be produced by the direct reaction of those elements, or through the reaction of ReO 4 − and H 2 S ...
O ratio is also used to predict barrel life in cartridges of the same caliber, but not of different calibres, since the ratio is an extensive quantity that does not correlate to temperature or pressure (e.g. a .50 cal straight cartridge may have the same overbore as a highly necked down .17 cal cartridge).
Potassium nonahydridorhenate(VII) is an inorganic compound having the formula K 2 [Re H 9].This colourless salt is soluble in water but only poorly soluble in most alcohols.This salt contains the nonahydridorhenate(VII) anion, [ReH 9] 2−, which is a rare example of a coordination complex bearing only hydride ligands.
2,6-Diisopropylnaphthalene (2,6-DIPN) is an organic compound with the formula C 10 H 6 (i-Pr) 2 (where i-Pr = isopropyl). 2,6-DIPN is one of several isomers of diisopropylnaphthalene. It is a white or colorless solid.
The six CO ligands are terminal and the Mo-Mo bond distance is 3.2325 Å. [2] The compound is prepared by treatment of molybdenum hexacarbonyl with sodium cyclopentadienide followed by oxidation of the resulting NaMo(CO) 3 (C 5 H 5). [3] Other methods have been developed starting with Mo(CO) 3 (CH 3 CN) 3 instead of Mo(CO) 6. [4]
2,6-Diisopropylaniline is an organic compound with the formula H 2 NC 6 H 3 (CHMe 2) 2 (Me = CH 3). It is a colorless liquid although, like many anilines , samples can appear yellow or brown. 2,6-Diisopropylaniline is a bulky aromatic amine that is often used to make ligands in coordination chemistry .