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New Research on Ring-Shaped Molecules Advances Clean Energy Solutions
https://scitechdaily.com/new-research-on-ring-shaped-molecules-advances-clean-energy-solutions/
https://scitechdaily.com/new-research-on-ring-shaped-molecules-advances-clean-energy-solutions/
SciTechDaily
New Research on Ring-Shaped Molecules Advances Clean Energy Solutions
Ring-shaped molecules known as porphyrins have potential as effective catalyst. Meeting society’s growing energy needs has become a daunting challenge for humanity. Demands for energy are expected to nearly double by the year 2050, while the effects of climate…
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Which density functional gives the best results for excitation energies?
Anonymous Quiz
4%
LDA
12%
GGA
23%
Hybrid GGA
9%
Meta GGA
25%
Hybrid meta GGA
27%
Double hybrid
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Physics Surprise: Protons Are Probably Actually Smaller Than Long Thought
https://scitechdaily.com/physics-surprise-protons-are-probably-actually-smaller-than-long-thought/
https://scitechdaily.com/physics-surprise-protons-are-probably-actually-smaller-than-long-thought/
SciTechDaily
Physics Surprise: Protons Are Probably Actually Smaller Than Long Thought
Study by the University of Bonn and the TU Darmstadt suggests errors in the interpretation of older measurements. A few years ago, a novel measurement technique showed that protons are probably smaller than had been assumed since the 1990s. The discrepancy…
Supercomputer and quantum simulations solve a difficult problem of materials science
https://phys.org/news/2022-02-supercomputer-quantum-simulations-difficult-problem.html
https://phys.org/news/2022-02-supercomputer-quantum-simulations-difficult-problem.html
phys.org
Supercomputer and quantum simulations solve a difficult problem of materials science
Understanding the structural properties of molecules found in nature or synthesized in the laboratory has always been the bread and butter of materials scientists. But, with advancements in science and ...
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Teams collaborate to reach a better understanding of symmetry breaking
https://phys.org/news/2022-02-teams-collaborate-symmetry.html
https://phys.org/news/2022-02-teams-collaborate-symmetry.html
phys.org
Teams collaborate to reach a better understanding of symmetry breaking
In an international collaboration, AMOLF researchers have theoretically described and experimentally observed spontaneous symmetry breaking (SSB) in two laser-driven coupled optical cavities. SSB is a ...
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Molecular_Orbitals_and_Organic_Chemical_Reactions_by_Ian_Fleming.pdf
11.9 MB
Molecular Orbitals and Organic Chemical Reactions
Molecular_Orbitals_and_Organic_Chemical_Reactions_Student_Edition.pdf
10.8 MB
Molecular Orbitals and Organic Chemical Reactions - Student Edition
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Quantum chemistry by McQuarrie, Donald A.pdf
80.1 MB
Quantum chemistry by McQuarrie, Donald A
Physics - Race Not Over Between Classical and Quantum Computers
https://physics.aps.org/articles/v15/19
https://physics.aps.org/articles/v15/19
Physics
Race Not Over Between Classical and Quantum Computers
A new classical algorithm reduces—by a factor of one billion—a recent claim of so-called quantum advantage.
The Mulliken charge scheme is a reliable and useful way to describe charge and population analysis in a chemical system.
Anonymous Quiz
55%
True
45%
False
👍5
Modern Physical Organic Chemistry.pdf
57.6 MB
Modern Physical Organic Chemistry
Modern Physical Organic Chemistry - Students solutions.pdf
39.7 MB
Modern Physical Organic Chemistry - Students solutions
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Watch "Bohr Model: A Delightful History [CC]" on YouTube
https://youtu.be/8IIg4Qt_qv4
https://youtu.be/8IIg4Qt_qv4
YouTube
Bohr Model: A Delightful History [CC]
How did 27-yr-old Niels Bohr make a model of the atom that was so audacious even Einstein admitted it he did not dare publish them? This is a story of dorky physics jokes, a truly supportive marriage, a useful conversation and a brilliant maid. Ready? Let's…
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Super-elastic alloy is first known metal to get springier as it heats up
City University of Hong Kong researchers have accidentally discovered a first-of-its-kind alloy that retains its stiffness instead of softening as the temperature rises. Indeed, high-entropy Elinvar appears to get stiffer and springier as temperatures approach 1,000 K (727°C, 1,341 °F). No other known metals have been found to behave this way.
In addition to the Elinvar effect, this metal also displays an elastic limit of about 2 percent at room temperature. You can see the extraordinary spring-back power of this high-entropy Elinvar alloy demonstrated in a room-temperature ball bearing drop test in the video.
City University of Hong Kong researchers have accidentally discovered a first-of-its-kind alloy that retains its stiffness instead of softening as the temperature rises. Indeed, high-entropy Elinvar appears to get stiffer and springier as temperatures approach 1,000 K (727°C, 1,341 °F). No other known metals have been found to behave this way.
In addition to the Elinvar effect, this metal also displays an elastic limit of about 2 percent at room temperature. You can see the extraordinary spring-back power of this high-entropy Elinvar alloy demonstrated in a room-temperature ball bearing drop test in the video.