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• W4245866215 abstract "[14523-22-9] C4Cl2O4Rh2 (MW 388.76) InChI = 1S/4CO.2ClH.2Rh/c4*1-2;;;;/h;;;;2*1H;;/q;;;;;;2*+1/p-2 InChIKey = FGKDXBICTVUSPK-UHFFFAOYSA-L (catalyst or catalyst precursor for rearrangement of strained rings;1 carbonylative ring expansion;2 carbonylative coupling of organometallics;3 hydroformylation;4 silylformylation5) Physical Data: mp 124 °C; sublimes 80 °C/1 mmHg. Solubility: sol most organic solvents; slightly sol saturated hydrocarbons. Form Supplied in: red or orange solid; widely available. Analysis of Reagent Purity: 13C NMR (CD2Cl2, 50 MHz), δ: 178.1 ppm (1JRhC = 76.9 ppm); IR (KBr): 2102 (m), 2082 (s), 2020 (s) cm−1 [νCO]; IR/Raman: 2115, 2089, 2042, 2029 cm−1; MS (EI 70 eV, m/z) 388, 360, 332, 304, 276, 241. X-ray structural analysis of the reagent has also been reported.12 Preparative Methods: The catalyst is generally prepared by passing a stream of CO through RhCl3·3H2O at 100 °C,13 or by bubbling CO into a methanol solution of RhCl3.3H3O at 65 °C for several hours.14 Evaporation of the solvent followed by recrystallization or sublimation of the solid provides [Rh(CO)2(μ-Cl)]2 in high purity as a brick-red solid. Purification: recryst from hexanes. also sublimed in vacuo (80 °C, 0.1 mmHg). Handling, Storage, and Precautions: stable in dry air but should be protected from moisture. Solutions decompose in air; solvents should be deoxygenated before dissolving reagent." @default.
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• W4245866215 date "2007-03-15" @default.
• W4245866215 modified "2023-09-30" @default.
• W4245866215 title "Tetracarbonyl(di-μ-chloro)dirhodium" @default.
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• W4245866215 doi "https://doi.org/10.1002/047084289x.rt024.pub2" @default.
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