IOSR Journal of Applied Chemistry (IOSR-JAC) e-ISSN: 2278-5736.
... solution but the blue shift in λmax1 was due to hydrophobic effect of solution which buried the non polar groups (tryptophenyl residues) inside the hormone so they need higher energy (blue shift) whereas the polar groups (tyrosyl residues) become more reveal on the outer surface and surround by posi ...
... solution but the blue shift in λmax1 was due to hydrophobic effect of solution which buried the non polar groups (tryptophenyl residues) inside the hormone so they need higher energy (blue shift) whereas the polar groups (tyrosyl residues) become more reveal on the outer surface and surround by posi ...
Chapter 4 Alcohols and Alkyl Halides
... trifluoride CH3CF3 boils at a lower temperature than either of them. Even more striking is the observation that the hexafluoride CF3CF3 is the lowest boiling of any of the fluorinated derivatives of ethane. The boiling point of CF3CF3 is, in fact, only 11° higher than that of ethane itself. The reas ...
... trifluoride CH3CF3 boils at a lower temperature than either of them. Even more striking is the observation that the hexafluoride CF3CF3 is the lowest boiling of any of the fluorinated derivatives of ethane. The boiling point of CF3CF3 is, in fact, only 11° higher than that of ethane itself. The reas ...
Now! - Soojeede.com
... Non-electrolytes have been described as solutions that do not conduct electricity and electrolytes are those that do conduct electricity. However, electrolytes do have varying degrees of strength. If a solution has a large number of ions present in it, it is called a strong electrolyte whereas an el ...
... Non-electrolytes have been described as solutions that do not conduct electricity and electrolytes are those that do conduct electricity. However, electrolytes do have varying degrees of strength. If a solution has a large number of ions present in it, it is called a strong electrolyte whereas an el ...
Structural and Functional Characterization of Luminescent Silver
... to be in the range of 1.0-1.4 nm, consistent with the size obtained from the TEM image of the dialyzed sample, and is close to the value obtained recently by Balan et al.28 for silver nanoparticles prepared in tetrahydrofuran. It has been demonstrated previously29 for spherical NCs that the broadeni ...
... to be in the range of 1.0-1.4 nm, consistent with the size obtained from the TEM image of the dialyzed sample, and is close to the value obtained recently by Balan et al.28 for silver nanoparticles prepared in tetrahydrofuran. It has been demonstrated previously29 for spherical NCs that the broadeni ...
Enthalpy Barriers for Asymmetric SN2 Alkyl
... predictive value of the MP2/6-31+G*//B3LYP/6-31+G* calculated enthalpies of activation for the mixed alkyl cation transfer reactions. By comparing the calculated enthalpies of activation for the two possible reactions between any set of reactants, it can be seen that for all cases, the alkyl cation ...
... predictive value of the MP2/6-31+G*//B3LYP/6-31+G* calculated enthalpies of activation for the mixed alkyl cation transfer reactions. By comparing the calculated enthalpies of activation for the two possible reactions between any set of reactants, it can be seen that for all cases, the alkyl cation ...
Preparation of Reducing Sugar Hydrolyzed from High
... shows the chemical compositions of substrates after pretreatment and without pretreatment, as control. The chemical contents of untreated coconut coir dust were of 26.72 percent cellulose, 17.73 percent hemicellulose and 41.19 percent lignin. After pretreatment, some lignin was removed ...
... shows the chemical compositions of substrates after pretreatment and without pretreatment, as control. The chemical contents of untreated coconut coir dust were of 26.72 percent cellulose, 17.73 percent hemicellulose and 41.19 percent lignin. After pretreatment, some lignin was removed ...
SQA CfE Higher Chemistry Unit 3: Chemistry in society
... Industrial processes are designed to maximise profit and minimise the impact on the environment. "The Chemical Industry is not in existence to manufacture chemicals: like any other industry it exists to create wealth and wealth can only be created if it can make profits." So, the major determinant i ...
... Industrial processes are designed to maximise profit and minimise the impact on the environment. "The Chemical Industry is not in existence to manufacture chemicals: like any other industry it exists to create wealth and wealth can only be created if it can make profits." So, the major determinant i ...
Chemical reactivity of ultracold polar molecules: investigation of H+
... collisions for vibrational levels v = 0 − 2 of the diatoms. Calculations were performed for incident kinetic energies in the range 10−7 − 10−1 eV, for total angular momentum J = 0 and s-wave scattering in the entrance channel of the collisions. Cross sections and rate coefficients are characterized ...
... collisions for vibrational levels v = 0 − 2 of the diatoms. Calculations were performed for incident kinetic energies in the range 10−7 − 10−1 eV, for total angular momentum J = 0 and s-wave scattering in the entrance channel of the collisions. Cross sections and rate coefficients are characterized ...
IUPAC Provisional Recommendations
... amount of ‘energy’ required to cleave chemical bonds. The literature is plagued with a variety of concepts that fall into that designation but are not always synonymous. We can find names like bond strengths, bond enthalpies, bond energies, bond dissociation enthalpies, bond dissociation energies, b ...
... amount of ‘energy’ required to cleave chemical bonds. The literature is plagued with a variety of concepts that fall into that designation but are not always synonymous. We can find names like bond strengths, bond enthalpies, bond energies, bond dissociation enthalpies, bond dissociation energies, b ...
Threshold Collision-Induced Dissociation Determination and
... Some ionophores (e.g., monensin A) display remarkable selectivity for Na+, whereas others (e.g., nonactin) are selective for K+. Polypeptides such as gramicidin A form ion channels through which Na+ can be transported.1-3 The Ag+ ion has long been used as a bactericide in newborns;4,5 some silver co ...
... Some ionophores (e.g., monensin A) display remarkable selectivity for Na+, whereas others (e.g., nonactin) are selective for K+. Polypeptides such as gramicidin A form ion channels through which Na+ can be transported.1-3 The Ag+ ion has long been used as a bactericide in newborns;4,5 some silver co ...
Enzyme catalysis
Enzyme catalysis is the increase in the rate of a chemical reaction by the active site of a protein. The protein catalyst (enzyme) may be part of a multi-subunit complex, and/or may transiently or permanently associate with a Cofactor (e.g. adenosine triphosphate). Catalysis of biochemical reactions in the cell is vital due to the very low reaction rates of the uncatalysed reactions. A key driver of protein evolution is the optimization of such catalytic activities via protein dynamics.The mechanism of enzyme catalysis is similar in principle to other types of chemical catalysis. By providing an alternative reaction route the enzyme reduces the energy required to reach the highest energy transition state of the reaction. The reduction of activation energy (Ea) increases the amount of reactant molecules that achieve a sufficient level of energy, such that they reach the activation energy and form the product. As with other catalysts, the enzyme is not consumed during the reaction (as a substrate is) but is recycled such that a single enzyme performs many rounds of catalysis.