Document
... ligand, respectively, is formed by strong hydrogen bonding interactions between pairs of Hhmp and hmp ligands that act as building blocks and self-assemble remarkably through aromatic π-π and CH/-π interactions to generate a nanoporous supramolecular structure exhibiting permanent porosity and selec ...
... ligand, respectively, is formed by strong hydrogen bonding interactions between pairs of Hhmp and hmp ligands that act as building blocks and self-assemble remarkably through aromatic π-π and CH/-π interactions to generate a nanoporous supramolecular structure exhibiting permanent porosity and selec ...
Unit 4, Lesson #3 - Patterson Science
... The value of Keq is determined experimentally. Chemists allow reactions to occur at stated temperatures, until the system no longer changes. At this point, they measure the amounts of both the reactants and products. Just as chemists monitor changes in pH, colour, gas pressure or conductivity of sol ...
... The value of Keq is determined experimentally. Chemists allow reactions to occur at stated temperatures, until the system no longer changes. At this point, they measure the amounts of both the reactants and products. Just as chemists monitor changes in pH, colour, gas pressure or conductivity of sol ...
Thermodynamics (Part 2)
... ΔG can be used to determine: -the effect of temperature on reaction spontaneity -the effect of pressure on reaction spontaneity -the effect of concentration on reaction spontaneity -ΔG can be used to calculate the equilibrium constant for a reaction -when comparing reactions, the more negative ΔG, t ...
... ΔG can be used to determine: -the effect of temperature on reaction spontaneity -the effect of pressure on reaction spontaneity -the effect of concentration on reaction spontaneity -ΔG can be used to calculate the equilibrium constant for a reaction -when comparing reactions, the more negative ΔG, t ...
Heterogeneous Catalysis and Solid Catalysts
... In photocatalysis light is absorbed by the catalyst or a reactant during the reaction. This can take place in a homogeneous or heterogeneous system. One example is the utilization of semiconductor catalysts (titanium, zinc, and iron oxides) for photochemical degradation of organic substances, e.g., ...
... In photocatalysis light is absorbed by the catalyst or a reactant during the reaction. This can take place in a homogeneous or heterogeneous system. One example is the utilization of semiconductor catalysts (titanium, zinc, and iron oxides) for photochemical degradation of organic substances, e.g., ...
1 Unit 11-12: Equilibrium and Acid/Bases Notes Colligative
... ‐ a large piece of copper will react slower in acid than many small pieces Increase concentration of reactants ‐ more moles (therefore particles) available to react in a 6.0M solution vs. a 0.10M solution ‐ copper will react faster with 6.0 M acid than 0.10 M. ...
... ‐ a large piece of copper will react slower in acid than many small pieces Increase concentration of reactants ‐ more moles (therefore particles) available to react in a 6.0M solution vs. a 0.10M solution ‐ copper will react faster with 6.0 M acid than 0.10 M. ...
Powerpoints - Holy Cross Collegiate
... • Every chemical reaction involves the rearrangement of atoms into different combinations. However, during these reactions, the total number of atoms of each type of element is the same after the reaction as it was before the reaction. • Chemical reactions have to be properly balanced in order to cl ...
... • Every chemical reaction involves the rearrangement of atoms into different combinations. However, during these reactions, the total number of atoms of each type of element is the same after the reaction as it was before the reaction. • Chemical reactions have to be properly balanced in order to cl ...
chemistry important question i
... metal hydroxide and an oxidizing agent like KNO3, produces a dark green coloured compound (B). Compound (B) on disproportionation in neutral and acidic solution gives a purple coloured compound (C). Identify A, B and C and write the reaction involved when compound (C) is heated to 513 K. (b)Write ba ...
... metal hydroxide and an oxidizing agent like KNO3, produces a dark green coloured compound (B). Compound (B) on disproportionation in neutral and acidic solution gives a purple coloured compound (C). Identify A, B and C and write the reaction involved when compound (C) is heated to 513 K. (b)Write ba ...
Study Guide KEY Exam III F 2012
... Primary (1o) structure of proteins is the amino acid sequence. It is maintained by covalent bonds called peptide bonds. Secondary (2o) structure is a regular repeating structure due to folding of the polypeptide chain. The main types are alpha-helix and beta sheet (either parallel or anti-parallel). ...
... Primary (1o) structure of proteins is the amino acid sequence. It is maintained by covalent bonds called peptide bonds. Secondary (2o) structure is a regular repeating structure due to folding of the polypeptide chain. The main types are alpha-helix and beta sheet (either parallel or anti-parallel). ...
Types of Reactions Lab
... 7. Check the activity series to see if calcium can displace hydrogen in a single replacement reaction. 8. Record your observations. 9. Write a complete balanced equation for this reaction. Reaction 7: Reaction of zinc and hydrochloric acid 1. Fill a test tube 1/4 full with 3M HC1. 2. Add a piece of ...
... 7. Check the activity series to see if calcium can displace hydrogen in a single replacement reaction. 8. Record your observations. 9. Write a complete balanced equation for this reaction. Reaction 7: Reaction of zinc and hydrochloric acid 1. Fill a test tube 1/4 full with 3M HC1. 2. Add a piece of ...
Supramolecular catalysis
Supramolecular catalysis is not a well-defined field but it generally refers to an application of supramolecular chemistry, especially molecular recognition and guest binding, toward catalysis. This field was originally inspired by enzymatic system which, unlike classical organic chemistry reactions, utilizes non-covalent interactions such as hydrogen bonding, cation-pi interaction, and hydrophobic forces to dramatically accelerate rate of reaction and/or allow highly selective reactions to occur. Because enzymes are structurally complex and difficult to modify, supramolecular catalysts offer a simpler model for studying factors involved in catalytic efficiency of the enzyme. Another goal that motivates this field is the development of efficient and practical catalysts that may or may not have an enzyme equivalent in nature.A closely related field of study is asymmetric catalysis which requires molecular recognition to differentiate two chiral starting material or chiral transition states and thus it could be categorized as an area of supramolecular catalysis, but supramolecular catalysis however does not necessarily have to involve asymmetric reaction. As there is another Wikipedia article already written about small molecule asymmetric catalysts, this article focuses primarily on large catalytic host molecules. Non-discrete and structurally poorly defined system such as micelle and dendrimers are not included.