Lecture 11 – Reaction Types and Mechanisms for Inorganic
... Moving from Group 1A to Group 2A – charge is important Increasing charge on the ion – H2O exchange rates become slower. This is because as the charge goes up the bond strength increases so we have a stronger bond that is more reluctant to break to release the water. Hence the higher +2 charged ions ...
... Moving from Group 1A to Group 2A – charge is important Increasing charge on the ion – H2O exchange rates become slower. This is because as the charge goes up the bond strength increases so we have a stronger bond that is more reluctant to break to release the water. Hence the higher +2 charged ions ...
module ap4 - Wey Valley School
... 1. understand the factors that influence the choice of a synthetic route (yields, costs, energy requirements, disposal or recycling of side products); 2. understand the terms: exothermic and endothermic; 3. understand the need for energy efficiency (limited to opportunities for recycling ‘waste’ hea ...
... 1. understand the factors that influence the choice of a synthetic route (yields, costs, energy requirements, disposal or recycling of side products); 2. understand the terms: exothermic and endothermic; 3. understand the need for energy efficiency (limited to opportunities for recycling ‘waste’ hea ...
Introduction - University of Pretoria
... different methods: (i) transformation of a non-carbene ligand and (ii) addition of a carbene ligand precursor to a metal complex from pre-existing carbene complexes, of which five reactions are possible. They are (i) the transfer of a carbene ligand from one metal to another, (ii) modification of th ...
... different methods: (i) transformation of a non-carbene ligand and (ii) addition of a carbene ligand precursor to a metal complex from pre-existing carbene complexes, of which five reactions are possible. They are (i) the transfer of a carbene ligand from one metal to another, (ii) modification of th ...
Elimination Reactions
... For SN2 reactions, you saw that the nucleophile had to attack from the backside of the electrophilic site. This restriction is still valid for E2 reactions. In E2, since we are concerned with bases and not nucleophiles, this restriction reads ‘the proton removed must be anti-periplanar to the leavin ...
... For SN2 reactions, you saw that the nucleophile had to attack from the backside of the electrophilic site. This restriction is still valid for E2 reactions. In E2, since we are concerned with bases and not nucleophiles, this restriction reads ‘the proton removed must be anti-periplanar to the leavin ...
Chapter Fourteen
... Chapter Summary Cont. ► Alcohols and phenols are weak acids that can donate H+ to a strong base. Alcohols and water have similar acidity; phenols are more acidic than water. ► Alcohols dehydrate to yield alkenes when treated with a strong acid, and they undergo oxidation to yield compounds that con ...
... Chapter Summary Cont. ► Alcohols and phenols are weak acids that can donate H+ to a strong base. Alcohols and water have similar acidity; phenols are more acidic than water. ► Alcohols dehydrate to yield alkenes when treated with a strong acid, and they undergo oxidation to yield compounds that con ...
Oxo-molybdenum(VI) - Repositório da Universidade Nova de Lisboa
... The significance of olefin epoxidation reactions was first recognized with the development of homogeneous catalysis based on oxomolybdenum(VI) complexes in the Halcon and Arco processes. Since then, many contributions have been reported concerning achiral molybdenum(VI) compounds. However, only some ...
... The significance of olefin epoxidation reactions was first recognized with the development of homogeneous catalysis based on oxomolybdenum(VI) complexes in the Halcon and Arco processes. Since then, many contributions have been reported concerning achiral molybdenum(VI) compounds. However, only some ...
Iridium(III) and Rhodium(III) compounds of dipyridyl-N
... complexes bearing η5 -C5 Me5 fragment have been a subject of interest over the past years.16 19 Numerous studies have been reported for their synthesis of which complexes with N,N-donor imine ligands were the most prominent. Specifically, imine ligands containing pyridyl groups have been extensively ...
... complexes bearing η5 -C5 Me5 fragment have been a subject of interest over the past years.16 19 Numerous studies have been reported for their synthesis of which complexes with N,N-donor imine ligands were the most prominent. Specifically, imine ligands containing pyridyl groups have been extensively ...
Chemistry 11 – Functional Groups Notes
... So far we have seen a couple of examples of functional groups present on hydrocarbons. They are the carbon-carbon double bonds, carbon-carbon triple bonds, and halides. We will now look at other important functional groups that are present in many everyday organic chemicals. General Naming for Hydro ...
... So far we have seen a couple of examples of functional groups present on hydrocarbons. They are the carbon-carbon double bonds, carbon-carbon triple bonds, and halides. We will now look at other important functional groups that are present in many everyday organic chemicals. General Naming for Hydro ...
chapter 24
... [Co(NH3)5Cl]Br(aq) + AgNO3(aq) ! [Co(NH3)5Cl]NO3 (aq) + AgBr(s) [Co(NH3)5Br]Cl(aq) + AgNO3(aq) ! [Co(NH3)5Br]NO3(aq) + AgCl(aq) ...
... [Co(NH3)5Cl]Br(aq) + AgNO3(aq) ! [Co(NH3)5Cl]NO3 (aq) + AgBr(s) [Co(NH3)5Br]Cl(aq) + AgNO3(aq) ! [Co(NH3)5Br]NO3(aq) + AgCl(aq) ...
On the Transition States of Electrophilic Radical Additions to Alkenes
... 6 that yield products 8 after hydrogen abstraction from tributylstannane. In kinetic competition reactions, a 10-fold or greater excess of pairs of styrenes was used. Determination of the product ratio via gas chromatography gives relative rates via pseudo-first-order Under the conditions of these k ...
... 6 that yield products 8 after hydrogen abstraction from tributylstannane. In kinetic competition reactions, a 10-fold or greater excess of pairs of styrenes was used. Determination of the product ratio via gas chromatography gives relative rates via pseudo-first-order Under the conditions of these k ...
Synthesis of Amide Bond Isosteres Incorporated
... domain is constructed by both the α- and the β-chain. The binding groove, which consists of a plane of an eight-stranded β-pleated sheet with two parallel α-helices at opposite sides, can accommodate peptide ligands up to 20 residues long since it is open at both ends (Figure 4). Peptides are bound ...
... domain is constructed by both the α- and the β-chain. The binding groove, which consists of a plane of an eight-stranded β-pleated sheet with two parallel α-helices at opposite sides, can accommodate peptide ligands up to 20 residues long since it is open at both ends (Figure 4). Peptides are bound ...
acez and Interfaces - Utrecht University Repository
... A common way of classifying oxides is based on their ----acid-base properties. Metal oxides can then be classified as acidic (e.g., Cr03 and V205), basic (e.g., La203), or amphoteric (e.g., ZnO). In this respect, it is important to know that acidity mostly increases with increasing oxidation state o ...
... A common way of classifying oxides is based on their ----acid-base properties. Metal oxides can then be classified as acidic (e.g., Cr03 and V205), basic (e.g., La203), or amphoteric (e.g., ZnO). In this respect, it is important to know that acidity mostly increases with increasing oxidation state o ...
millionaire_organic_review
... Alcohols have unusually high boiling points for their carbon chain length because of A. van der Waal forces ...
... Alcohols have unusually high boiling points for their carbon chain length because of A. van der Waal forces ...
Coordination Chemistry: Bonding, Spectra, and Magnetism
... So what evidence is there for -bonding (i.e. what do we look for)? We begin by asking what would the interaction look like without -bonding? Then, what happens with full -bonding: M-L M=L Since the bonding between metal and ligand changes between these forms, bonding within the ligand must chan ...
... So what evidence is there for -bonding (i.e. what do we look for)? We begin by asking what would the interaction look like without -bonding? Then, what happens with full -bonding: M-L M=L Since the bonding between metal and ligand changes between these forms, bonding within the ligand must chan ...
Hydroformylation
Hydroformylation, also known as oxo synthesis or oxo process, is an important homogeneously catalyzed industrial process for the production of aldehydes from alkenes. This chemical reaction entails the addition of a formyl group (CHO) and a hydrogen atom to a carbon-carbon double bond. This process has undergone continuous growth since its invention in 1938: Production capacity reached 6.6×106 tons in 1995. It is important because the resulting aldehydes are easily converted into many secondary products. For example, the resulting aldehydes are hydrogenated to alcohols that are converted to plasticizers or detergents. Hydroformylation is also used in specialty chemicals, relevant to the organic synthesis of fragrances and natural products. The development of hydroformylation, which originated within the German coal-based industry, is considered one of the premier achievements of 20th-century industrial chemistry.The process typically entails treatment of an alkene with high pressures (between 10 to 100 atmospheres) of carbon monoxide and hydrogen at temperatures between 40 and 200 °C. Transition metal catalysts are required.