Application of 1038-95-5, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 1038-95-5, C21H21P. A document type is Article, introducing its new discovery.
Reactions of HIr(CO)(P(p-tolyl)3)3 with SO2, O2, mixtures of SO2 and O2, and H2SO4 are described. Reactions with mixtures of SO2/O2. and with H2SO4 lead to a common product, Ir2H4(mu-SO4)(P(p-tolyl)3) 6, where a bidentate SO42- bridges the iridium centers. The complex HIr(CO)(P(p-tolyl)3)3 is stable toward O2 but reacts readily with SO2 to give HIr(CO)(SO2)(P(p-tolyl)3)2, which was characterized by a crystal structure determination. The species Ir(CO)(H)(SO2)(P(p-tolyl)3)2 crystallizes in the centrosymmetric triclinic space group P1 with a = 10.675(1) A, b = 10.882(1) A, c = 17.740(2) A, alpha = 84.626(10), beta= 83.432(10), gamma = 87.043(10), V = 2036.6(3) A3, and Z =2. Diffraction data (Mo Kalpha, 20 = 4.5-45.0) were collected on a Siemens R3m/V diffractometer, and the structure was refined to R = 3.00% for 4218 independent reflections with Fo > 6sigma(Fo). The five-coordinate iridium(I) center has a distorted environment (closer to trigonal bipyramidal than to square pyramidal) with H(1)-Ir(1)-S(1) = 171.4(23). Bond lengths are Ir-P = 2.303(2) and 2.320(2) A, Ir-SO2 = 2.372(2) A, Ir-CO = 1.906(8) A, and Ir-H= 1.65(7) A. The SO2 ligand has bond distances of S(1)-O(1) = 1.442(7) and S(1)-O(2) = 1.441(7) A, with O(1)-S(1)-O(2) = 113.1(4).
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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate