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Pentamethylcyclopentadienyl iridium dichloride dimer was first prepared by the reaction of hydrated iridium trichloride with hexamethyl Dewar benzene. [2] More conveniently, the compound is prepared by the reaction of hydrated iridium trichloride and pentamethylcyclopentadiene in hot methanol, from which the product precipitates [1]
Pentamethylcyclopentadienyl rhodium dichloride dimer is an organometallic compound with the formula [ (C 5 (CH 3) 5 RhCl 2 )] 2, commonly abbreviated [Cp*RhCl 2] 2 This dark red air-stable diamagnetic solid is a reagent in organometallic chemistry. [ 1]
1,2,3,4,5-Pentamethylcyclopentadiene is a cyclic diene with the formula C 5 (CH 3) 5 H, often written C 5 Me 5 H, where Me is CH 3. It is a colorless liquid. 1,2,3,4,5-Pentamethylcyclopentadiene is the precursor to the ligand 1,2,3,4,5-pentamethylcyclopentadienyl, which is often denoted Cp* (C 5 Me 5) and read as "C P star", the "star" signifying the five methyl groups radiating from the core ...
Olga Horak, 98, Czechoslovak-born Australian Holocaust survivor. [ 72] (death announced on this date) Ivair, 79, Brazilian footballer ( Portuguesa, Fluminense, national team ), cancer. [ 73] Rowena Jackson, 98, New Zealand prima ballerina. [ 74] Sergey Kalyakin, 72, Belarusian politician.
AR-15–style rifle. Thomas Matthew Crooks (September 20, 2003 – July 13, 2024) was an American man who attempted to assassinate former U.S. president Donald Trump, who at the time was the presumptive Republican Party nominee for the 2024 presidential election. [ 1][ 2] On July 13, 2024, at a rally near Butler, Pennsylvania, Crooks shot at ...
Ukrainian gymnast Illia Kovtun finished second in the men's parallel bars. Women's high jump medallists at the 2024 games. From left to right: Iryna Herashchenko (Ukraine, bronze), Eleanor Patterson (Australia, bronze), Yaroslava Mahuchikh (Ukraine, gold), and Nicola Olyslagers (Australia, silver). Medallists of the women's 50 metre rifle three ...
The first general election debate between the major candidates of the 2024 United States presidential election was sponsored by CNN and attended by presumptive Democratic nominee Joe Biden and presumptive Republican nominee Donald Trump on June 27, 2024. Biden withdrew from the race in July, and Kamala Harris was selected to replace him, while ...