Organometallic chemistry

LAB 7: ORGANOMETALLIC REACTIONS: IDENTIFICATION OF AN UNKNOWN BROMIDE (Preparative) Introduction The first purpose of the lab was to prepare an unknown organomagnesium bromide, an organometallic reagent, reacting an unknown aryl bromide with magnesium in anhydrous ether. The unknown was chosen from a predetermined list of benzoic acid derivatives with varying molecular weights and melting points (see Supplement C). The second purpose of this lab was to prepare an unknown carboxylic acid by reacting

and calculating the molecular weight obtained from titration. Organometallic compounds are compounds that contain carbon-metal bonds (C-M bonds), in which carbon bears a partial negative charge because metal is less electronegative than the carbon. This partial negative charge of the carbon atom allows it to be a good nucleophile that attacks the electrophile to make a new carbon-carbon bond. There are several examples of organometallic compounds, such as organolithium, Gilman reagents, and Grignard

A Grignard-Like Organic Reaction The Synthesis of 1-phenyl-3-buten-1-ol Introduction The Grignard reaction is an important synthetic process by which a new carbon to carbon bond is formed. Magnesium metal is first reacted with an organic halide forming the Grignard reagent. The Grignard reaction is the addition of an organomagnesium halide (Grignard reagent) to a ketone or aldehyde, to form a tertiary or secondary alcohol, respectively. For example, the reaction with formaldehyde leads to

and calculating the molecular weight obtained from titration. Organometallic compounds are compounds that contain carbon-metal bonds (C-M bonds), in which carbon bears a partial negative charge because metal is less electronegative than the carbon. This partial negative charge of the carbon atom allows it to be a good nucleophile that attacks the electrophile to make a new carbon-carbon bond. There are several examples of organometallic compounds, such as organolithium, Gilman reagents, and Grignard

quotation because it express what, I think, is the essence of teaching and learning. As a student, I have observed that the best teachers were those who cared the most about teaching. It is noteworthy to mention that, I loved the way of my organic chemistry teacher taught conformational

Ferrocene is an organometallic iron compound with a pentagonal anti-prismatic "sandwich" structure. Due to its high-symmetry sandwich structure, ferrocene has a number of interesting chemical and physical properties. This compound is widely used in chemistry, biology and pharmacology, both in industry and in scientific research. For ferrocenes, three main types of transformations are characteristic: the replacement of five-membered ring hydrogens, the oxidation at the iron atom, and the breaking

Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee, Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used

a bound to a metal centre in this case Iron (Fe) which is in the oxidation state of II. Ferrocene appears as an orange/yellow crystal. Ferrocene, (η5-Cp)2Fe The discovery of ferrocene in 1950’s was very important as it opened a vast area of chemistry. Furthermore, ferrocene was the first compound

1.1 Introduction: Coordination chemistry, which is the chemistry of metal complexes, is an important and fascinating branch of chemistry. The coordination compounds including organometallics are of significant importance and play a pivotal role in industry, technology and life processes. Due to their potential applications in various fields it has always fascinated and inspired chemists all over the world. This can be evidenced by the vast prolificity and scope of research papers on the subject in

Korleyfah Mouth Chem 331 Thursday 2:00pm Dr. Lijuan Li 20A Preparation of CuCl2~2DMSO 20B Preparation of RuCl2~4DMSO Abstract In order to synthesize our metal complexes, we were able to make both Copper and Ruthenium metals. From this, we combined each metal complex with DMSO by refluxing the compound. The metal complexes were analyzed through their melting point and IR spectroscopy to determine whether the metal bonded to a Sulfur atom or an Oxygen atom of the DMSO. After analyzing the IR spectrum