Application of 499-40-1, Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.499-40-1, Name is (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal, molecular formula is C12H22O11. In a patent, introducing its new discovery.
Oxidation chemistry of axially protected Mo2 and W2 quadruply bonded compounds
Reported is a facile, high-yielding one-pot synthesis of the quadruply bonded ditungsten (II,II) compound W2(dpa)4 (1) (dpa=2,2?-dipyridylamide), which was obtained from W(CO)6 at high temperature in naphthalene. A similar reaction in 1,2-dichlorobenzene furnished a ditungsten (III, III) species as the major product that was crystallized as [W2(dpa)3Cl2][BPh4] (3). The [W2(dpa)3Cl2]+ cation is better prepared by oxidation of 1 with SO2Cl2. Compound 1 was characterized by X-ray crystallography and cyclic-voltammetry, and is compared with its earlier reported molybdenum analogue, Mo2(dpa) 4 (2). One-electron oxidation products of 1 and 2, [W 2(dpa)4][BPh4] (1BPh4) and [Mo 2(dpa)4][BPh4] (2BPh4), respectively, have also been synthesized. The crystallographically determined metal-metal distances of 2.23 A and 2.14 A in 1BPh4 and 2BPh4, respectively, are in agreement with metal-metal bond orders of 3.5. Unlike most previously reported Mo25+ and W 25+ compounds, the primary coordination spheres around the M2-units in 1/1BPh4 and 2/2BPh4 remain unchanged upon one-electron oxidation, because the tridentate dpa ligand hinders axial coordination of exogenous ligands.
If you are interested in 499-40-1, you can contact me at any time and look forward to more communication.Application of 499-40-1
Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics