Group specially prepared, highly reactive metal powder
Not to be confused with Raney nickel.
A Rieke metal is a highly reactive metal powder generated by reduction of a metal salt with an alkali metal. These materials are named after Reuben D. Rieke, who first described along with an associate in 1972 the recipes for their preparation.[1] In 1974 he told about Rieke-magnesium.[2] A 1989 paper by Rieke lists several metals that are allowed by the periodic table to be produced by his process: Cd, Zn, Ni, Pt, Pd, Fe, In, Tl, Co, Cr, Mo, W, Cu, which in turn are called Rieke-nickel, Rieke-platinum, etc.[3]
Rieke metals are highly reactive because they have high surface area and lack surface oxides that can retard reaction of bulk materials. The particles are very small, ranging from 1-2 μm down to 0.1 μm or less. Some metals like nickel and copper give black colloidal suspensions that do not settle, even with centrifugation, and cannot be filtered. Other metals such as magnesium and cobalt give larger particles, but these are found to be composed mainly of the alkali salt by-product, with the metal dispersed in them as much finer particles or even as an amorphous phase.[3]
^Rieke, Reuben (2017). "Magnesium". Chemical Synthesis Using Highly Reactive Metals. pp. 161–208. doi:10.1002/9781118929124.ch4. ISBN 978-1-118-92911-7.
^Rieke, Reuben D.; Bales, Stephen E. (1974). "ChemInform Abstract: ACTIVATED METALS PART 4, PREPARATION AND REACTIONS OF HIGHLY REACTIVE MAGNESIUM METAL". Chemischer Informationsdienst. 5 (21). doi:10.1002/chin.197421315.
^ abCite error: The named reference Science was invoked but never defined (see the help page).
A Riekemetal is a highly reactive metal powder generated by reduction of a metal salt with an alkali metal. These materials are named after Reuben D...
metal, enhancing its reactivity. Addition of preformed Grignard reagent is often used as the initiator. Specially activated magnesium, such as Rieke magnesium...
solvents using alkali metals as reducing agents" known to us as the Rieke process. In 1974 he told about Rieke-magnesium. Rieke followed this up in 1989...
salts to the metal, potassium is often used as the reductant in the preparation of finely divided metals from their salts by the Rieke method. Illustrative...
Ei-ichi Negishi. Rieke zinc, a highly reactive form of zinc metal, is generated by reduction of zinc dichloride with lithium. Rieke Zn is useful for the...
96–103. doi:10.1002/0471653683.ch3. ISBN 0-471-64750-0. Rieke, Reuben D.; Wu, Tse-Chong & Rieke, Loretta I. (1995). "Highly Reactive Calcium for the Preparation...
first salt is Peyrone's salt) Rice's Bromine Solution (Br2 / NaBr(aq)) Riekemetals (class of materials) Rochelle salt (KNaC4H4O6·4H2O) Roussin's black salt...
In 1996 Rieke introduced activated manganese (see Riekemetal) obtained by reaction of anhydrous manganese(II) chloride with lithium metal in a solution...
Burkhardt, Elizabeth R.; Rieke, Reuben D. (1985). "The direct preparation of organocadmium compounds from highly reactive cadmium metal powders". The Journal...
Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6. See notes in Rieke, R. D.; Bales, S. E.; Hudnall, P. M.; Burns, T. P.; Poindexter, G. S. "Highly...
ISSN 0002-7863. Rieke, Reuben D.; Öfele, Karl; Fischer, E. O. (1974-08-13). "Activated metals: VIII. Preparation of chromium hexacarbonyl from chromium metal". Journal...
Retrieved 15 January 2009. Werner, M. W.; Roellig, T. L.; Low, F. J.; Rieke, G. H.; Rieke, M.; Hoffmann, W. F.; Young, E.; Houck, J. R.; et al. (2004). "The...
an enantiomeric excess of 92%. Rieke, R. D. (1989). "Preparation of Organometallic Compounds from Highly Reactive Metal Powders". Science. 246 (4935):...
Vol. 81, No. 8, 2169–2175. Vural, K., Kozlowski, L. J., Rasche, R. W., & Rieke, M. J. (1990). 256 × 256 HgCdTe focal plane array for the Hubble Space Telescope...
halides, activated forms of magnesium have been produced in the form of Rieke magnesium. Examples of Grignard reagents are phenylmagnesium bromide and...
ISSN 0004-6361. Data about this star is available here at VizieR. Gáspár, András; Rieke, George H.; Ballering, Nicholas (2016-08-01). "The Correlation between Metallicity...
Egami, Eiichi; Hodapp, Klaus W.; Kelly, Douglas M.; Leisenring, Jarron; Rieke, Marcia; Robberto, Massimo; Schlawin, Everett; Stansberry, John (2016)....
crowd collapse which injured a reported 70 people, and caused the death of Rieke Lax, a 16 year old Dutch girl. The band later released the song "Alles ist...
Chen, Tian-An; Wu, Xiaoming; Rieke, Reuben D. (1995). "Regiocontrolled Synthesis of Poly(3-alkylthiophenes) Mediated by Rieke Zinc: Their Characterization...
16 February 2007. Retrieved 20 September 2007. Su, K. Y. L.; Chu, Y.-H.; Rieke, G. H.; Huggins, P. J.; Gruendl, R.; Napiwotzki, R.; Rauch, T.; Latter,...
hydrocarbons, and metal complexes". The Journal of Physical Chemistry. 99 (21): 8843–8850. doi:10.1021/j100021a060. Rieke, Reuben D.; Wu, Tse-Chong; Rieke, Loretta...
surface adsorption of tartaric acid. Nickel aluminide Urushibara nickel Rieke nickel Nickel boride catalyst Raney cobalt, a similar cobalt/aluminum alloy...
1051/0004-6361/201834358. S2CID 203836020. Gorlova, N.; Lobel, A.; Burgasser, Adam J.; Rieke, G. H.; Ilyin, I.; Stauffer, J. R. (2006). "On the CO Near-Infrared Band...
393–402. Bibcode:2004MiEng..17..393M. doi:10.1016/j.mineng.2003.11.014. Rieke, G. H. (2007). "Infrared Detector Arrays for Astronomy". Annual Review of...
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