Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition. 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
A series of Ru(II) (1,4-bis(diphenylphosphino)butane)(L)2complexes was synthesized from [RuCl2(dppb)]2(mu-dppb) or RuCl2(dppb)-(PPh3); dppb=Ph2P(CH2)4PPh2, L=NH3, pyridine (py), 4-aminopyridine (4-NH2py), 4-cyanopyridine (4-CNpy), 4-dimethylaminopyridine (4-Me2Npy), 4-methylpyridine (4-Mepy), 4-phenylpyridine (4-Phpy), 4-vinylpyridine (4-Vpy) and N-methylimidazole (MeIm), and L2=2,2?-bipyridine (bipy), bis(o-pyridyl)amine (bpa), 1,10-phenanthroline (phen),4,7-diphenylphenanthroline (or bathophenanthroline, batho) and ethylenediamine (en). The complexes were characterized by elemental analysis, cyclic voltammetry, UV-Vis, NMR and IR spectroscopies. The structures of trans-RuCl2(dppb)(py)2 (3), cis-RuCl2(dppb)(bipy) (4) and cis-RuCl2(dppb)(phen) (5) were established by X-ray crystallographic analyses. Crystals of trans-3, cis-4 · CH2Cl2 and cis-5 · solvate are all monoclinic, space group P21/c, with Z=4; a=12.946(2), b=14.204(3), c=18.439(4) A, beta=90.08(2) for trans-3; a=10.694(6), b=18.485(6), c=18.632(7) A, beta= 90.26(3) for cis-4 · CH2Cl2; a=17.094(1), b=9.923(2), c=21.905(2) A, beta=98.883(6) for cis-5 · solvate. The structures were solved by the heavy atom Patterson method and were refined by full-matrix least-squares procedures to R=0.069, 0.071 and 0.036 (Rw=0.069, 0.076 and 0.039) for 1957, 4165 and 4824 reflections with I ? 3sigma(I), respectively.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics