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- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Polymer_Chemistry_(Schaller)/04%3A_Polymer_Properties/4.06%3A_Microphase_SeparationSometimes, more rigid segments of a polymer are deliberately built into the structure. If the block lengths are the right size, the two segments are able to separate into two phases. As a result of st...Sometimes, more rigid segments of a polymer are deliberately built into the structure. If the block lengths are the right size, the two segments are able to separate into two phases. As a result of stronger intermolecular attractions, lengths of chains containing hard segments cluster together, pushing out the soft segments that would otherwise get in the way of these intermolecular attractions. This phenomenon is called microphase separation.
- https://chem.libretexts.org/Courses/Barry_University/CHE360%3A_Inorganic_Chemistry/09%3A_Coordination_Chemistry_II-_Bonding/9.09%3A_Tetrahedral_ComplexesTetrahedral geometry is even more common in chemistry than square planar geometry. Assessing the orbital interactions in tetrahedral geometry is somewhat more complicated, however, and it is common to...Tetrahedral geometry is even more common in chemistry than square planar geometry. Assessing the orbital interactions in tetrahedral geometry is somewhat more complicated, however, and it is common to proceed directly to a group theory approach.
- https://chem.libretexts.org/Courses/University_of_Illinois_Springfield/Introduction_to_Organic_Spectroscopy/5%3A_Proton_Nuclear_Magnetic_Resonance_Spectroscopy_(NMR)/5.08%3A_Structural_Assignment/NMR2._Carbon-13_NMRContributors and Attributions Chris P Schaller, Ph.D., (College of Saint Benedict / Saint John's University)
- https://chem.libretexts.org/Courses/Saint_Marys_College_Notre_Dame_IN/CHEM_342%3A_Bio-inorganic_Chemistry/Readings/Week_2%3A_Introduction_to_Metal-Ligand_Interactions_and_Biomolecules/2.1_Transition_metal_complexes/2.1.7%3A_Geometry_in_Transition_Metal_ComplexesIf you have studied Lewis structures, then you know that the number of lone pairs and atoms around a specific atoms tells you the geometry at that specific atom. In transition metal complexes, the lon...If you have studied Lewis structures, then you know that the number of lone pairs and atoms around a specific atoms tells you the geometry at that specific atom. In transition metal complexes, the lone pairs on the metal do not contribute to the metal complex's overall geometry. The same goes for square planar geometry; however, destabilization occurs to a lesser extent when there are eight electrons on the metal in this geometry.
- https://chem.libretexts.org/Courses/University_of_Illinois_Springfield/Introduction_to_Organic_Spectroscopy/2%3A_Mass_Spectrometry/2.4%3A_Interpretation_of_Mass_Spectra/Molecular_IonsFigure MS4. Ionization in three different organic compounds. Problem MS3. Draw an equation for the formation of a molecular ion from each of the following compounds. Contributor Chris P Schaller, Ph.D...Figure MS4. Ionization in three different organic compounds. Problem MS3. Draw an equation for the formation of a molecular ion from each of the following compounds. Contributor Chris P Schaller, Ph.D., (College of Saint Benedict / Saint John's University)
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/I%3A__Chemical_Structure_and_Properties/07%3A_Structure-Property_Relationships/7.02%3A_Changes_of_StateBy now you are probably well aware that all the matter around you exists in one of three states: it is a solid, like the earth; a liquid, like the water; or a gas, like the air. If you don't feel like...By now you are probably well aware that all the matter around you exists in one of three states: it is a solid, like the earth; a liquid, like the water; or a gas, like the air. If you don't feel like you have much energy, you probably lay around a lot near the bottom of your container or dorm room, like a lump of coal on the bottom of a coal bin.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/I%3A__Chemical_Structure_and_Properties/06%3A_Conformational_Analysis/6.13%3A_More_Practice_with_ConformationCompare and contrast these nucleotides with the natural one, in terms of their ability to fit together with the correct "base pair partner" in a DNA molecule. While xC is similar to cytosine in terms ...Compare and contrast these nucleotides with the natural one, in terms of their ability to fit together with the correct "base pair partner" in a DNA molecule. While xC is similar to cytosine in terms of placement of hydrogen bond donors and acceptors, the additional ring creates steric problems in that the hydrogen bond donors and acceptors are placed too close to the correct "base pair partner".
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/I%3A__Chemical_Structure_and_Properties/14%3A_Concepts_of_Acidity/14.10%3A_The_Relationship_Between_Structure_and_Bronsted-Lowry_AcidityIn fact, sodium is on the very left hand side of the periodic table, whereas oxygen is in the upper right hand corner. That oxygen has a high nuclear charge and a high electron affinity, but a 2- char...In fact, sodium is on the very left hand side of the periodic table, whereas oxygen is in the upper right hand corner. That oxygen has a high nuclear charge and a high electron affinity, but a 2- charge is a lot of negative charge on one small atom. On the other hand, nitric acid dissociates to form a proton and nitrate ion, NO 3- . This ion has a single negative charge on an element that has a high electron affinity, oxygen.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/I%3A__Chemical_Structure_and_Properties/13%3A_Molecular_Orbital_Theory/13.11%3A_Geometry_and_Orbital_Contribution_to_BondingThe other lobe of the same p orbital is directed at a space (on the opposite face of the cube) in between the other two hydrogen atoms (on the opposite corners of that face). In molecules, we sometime...The other lobe of the same p orbital is directed at a space (on the opposite face of the cube) in between the other two hydrogen atoms (on the opposite corners of that face). In molecules, we sometimes blur the distinction between the ones that are needed to form this set of bonds, and refer to them instead as "hybrids". Hybridization is closely tied to the geometry of the central atom, so much so that the terms, geometry and hybridization, are occasionally used interchangeably.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/III%3A_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_1/06%3A_Enzyme_Catalysis/6.07%3A_Enzyme_Solutionshydrolase vii) add water into a molecule, helping to break it down oxygenase i) add oxygen from O 2 into a molecule dioxygenase ii) add both oxygens from O 2 into a molecule reductase iv) reduce or ad...hydrolase vii) add water into a molecule, helping to break it down oxygenase i) add oxygen from O 2 into a molecule dioxygenase ii) add both oxygens from O 2 into a molecule reductase iv) reduce or add electrons to the substrate transferase ix) transfer a functional group to or from a molecule Aspartic acid (abbreviations Asp or D) and glutamic acid (abbreviations Glu or E). Histidine (abbreviations His or H), lysine (abbreviations Lys or K) and arginine (abbreviations Arg or R).
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_Structure_and_Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_(Schaller)/V%3A__Reactivity_in_Organic_Biological_and_Inorganic_Chemistry_3/06%3A_Radical_Reactions/6.12%3A_Solutions_for_Selected_ProblemsIn a planar alkene, the C-H bond can be formed only from some combination involving a hydrogen 1s orbital, carbon 2s orbital and two of the carbon 2p orbitals (since two of them could lie in this plan...In a planar alkene, the C-H bond can be formed only from some combination involving a hydrogen 1s orbital, carbon 2s orbital and two of the carbon 2p orbitals (since two of them could lie in this plane). On the other hand, the 100 kcal/mol released upon formation of a Sn-Cl bond would more than make up for the 85 kcal/mol required to breal a C-Cl bond.
