You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; helping to ensure national healthcare provision keeps pace with new discoveries. 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 Article，once mentioned of 499-40-1, category: Tetrahydropyrans
Three new triply bridged dinuclear copper(II) compounds containing carboxylato bridges, [Cu2(mu-CH3COO-kappa-O1,O2)2(mu-CH3COO-kappa-O1)(dpyam)2](BF4) (1), [Cu2(mu-CH2CH3COO-kappa-O1,O2)(mu-OH)(mu-OH2)(bpy)2](ClO4)2 (2) and [Cu2(mu-CH3COO-kappa-O1,O2)(mu-OH)(mu-OH2)(phen)2](ClO4)2 (3) (in which dpyam = di-2-pyridylamine, bpy = 2,2-bipyridine, phen = phenanthroline), have been synthesized in order to investigate the magnetic super-exchange pathway between coupled copper(II) centres. All three compounds display a distorted square-pyramidal arrangement around each copper(II) ion with a CuN2O3 chromophore. Compound 1 has three acetato bridges, two of which connect each square pyramid at two equatorial sites in a triatomic bridging mode and the third acetato bridge acts at the apical site in the monoatomic bridging mode. The structures of compounds 2 and 3 are mutually similar. In each dinuclear unit, both copper(II) ions are linked at two equatorial positions through a hydroxo bridge and a triatomic carboxylato bridge and at the axial position through a water molecule. The magnetic susceptibility measurements, measured from 5 to 300 K, revealed an antiferromagnetic interaction between the Cu(II) ions in compound 1 and a ferromagnetic interaction for compounds 2 and 3 with singlet-triplet energy gaps (J) of -56, 149 and 120 cm-1, for compounds 1, 2 and 3, respectively.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.category: Tetrahydropyrans, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 499-40-1, in my other articles.
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics