Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the fundamental magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. All materials are influenced to some extent by a magnetic ...

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From a Quantum Chemistry Point of View how can I break Bonds without Heating?

Is it possible to dissolve/break bonds using strong alternating magnetic fields at high frequency? (Perhaps from tesla coils?) Could you use resonance to cause the bond to weaken over time? If so how ...
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55 views

Metallic and magnetic nature of oxides,transition elements,

Which of the following oxides is both metallic and ferromagnetic? VO2 , CrO2 , MnO2 , TiO2 This is how I went about solving it: Since ferromagnetic materials also show paramagnetism,so the condition ...
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What are open access sources for approximate magnetic susceptibility of liquid rocket propellants?

This question on space.se asks if the comparatively large paramagnetic susceptibility of liquid oxygen (LOX) is considered when designing rocket tank and engine systems. This comment suggests fuels ...
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Is there an example of a closed shell molecule with a permanent ground state magnetic dipole?

It seems that molecules of point group C$_{n}$ and C$_{nh}$ can in principle support a permanent magnetic dipole moment (Barron, 2004). However, I cannot think of any closed shell molecules that ...
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28 views

Plasma, Fourth State of Matter, and Magnetic Fields and Electric Fields [closed]

Plasma is the fourth state of matter consisting of positive atoms, and freed negative electrons. Does plasma have an electric field, and magnetic field?
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Clarification with strength of the anisotropy field versus magnetization

I am presenting a paper for my seminar class on using lithium-ion battery cycling for reversible magnetization control. The paper, which is very interesting, can be found here: ...
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53 views

Can you make a magnetic fluid that's drinkable [closed]

I need to make a ferrofluid that is drinkable so I obviously can't use the traditional method of using iron as it is harmful. Are there any chemicals that are not harmful that can take on magnetic ...
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49 views

Tungsten 4+ ion magnetism?

I just had a quiz and struggled on a particular question: Tungsten forms a $+4$ ion. It is observed to be diamagnetic. The electron configuration for this ion may not be what you would expect. ...
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38 views

paramagnetism vs. dimagnetism

this was a question for my chem class- and for some reason the answer was the last option. Why isn't it $\ce{Mn}$ which has the most unpaired electrons? Which of the following species would you ...
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O2 near magnets? [duplicate]

Now we know that $\ce{O2}$ is paramagnetic. I was just curious to know if we can find $\ce{O2}$ in gaseous state near magnets (of sufficiently strong intensity)? Or is it just that $\ce{O2}$ displays ...
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91 views

Growing crystals that are in a magnetic field or subjected to an electric field

I know different crystals resonant at different frequencies but is it possible to grow crystal at a certain frequency. An example would be growing crystals using Epsom salt or Alum in a magnetic ...
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Questions related to distinguishing dimagnetism and paramagnetism and when is there magnetic properties

If a transition metal ion has both paired and unpaired electrons, would it be considered as showcasing paramagnetism or dimagnetism? I know that Fe2+, which has an abbreviated electronic configuration ...
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What are good things to mix iron filings with to pour into a mould?

A project that I'm working on requires me to construct a shape like a cube with a spherical cavity inside it and further requires that the shape be ferromagnetic. I have on hand a PLA mould for making ...
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Why does magnetic susceptibility increase as we go down the homologous series of Alkanes?

I've noticed that magnetic susceptibility increases as we go from pentane, to hexane to centane etc..Additionally, it increases from pentane, for example, to methyl-butane, but much less than the ...
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38 views

Magnetic susceptibility trend

So I was recently looking at this website. http://www.fizika.si/magnetism/MagSusceptibilities.pdf It lists the susceptibility values for inorganic compounds, and I've noticed that the trends don't ...
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306 views

Can PBE (and LDA) actually be a better choice sometimes?

Part of my work as an inorganic chemist is to investigate the magnetic coupling between metallic centers in coordination compounds. After some time, I've noticed that the classic PBE functional is the ...
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Transition Metal Compounds

So I have a few dumb questions. I'm still in high school and am doing something on magnetic properties of transition metals. I'm facing a few roadblocks. 1) What're compounds like $\ce{CoBr2, CoCl2, ...
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What are most common condition for reduction of hematite to magnetite?

I found that hydrogen can reduce $\ce{Fe2O3}$ to $\ce{Fe3O4}$ under anaerobic conditions, but since I dont have $\ce{H2}$ in my lab what should I use to convert hematite into magnetite? and what ...
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Are there magnetic rocks, and not hematite?

I dug up some sand and small rocks in a stream bed near me and moved a powerful magnet through the wash picking up numerous small rocks and black sand. Now, the black sand is definitely small ...
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Hybridization, MOT and Paramagnetism

In what way can hybridization or molecular orbital theory be used to explain paramagnetism? For instance, when something is hybridized to make enough bonding electrons, do all the electrons end up ...
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why is molybdenum a much stronger magnet than chromium

Molybdenum is well known for its strong magnetic properties. Why is Chromium with an identical set of unpaired electrons not nearly as strong?
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Could a magnet pull oxygen out of the air?

I read that the $\ce{O2}$ molecule is paramagnetic, so I'm wondering: could a strong magnet pull the $\ce{O2}$ to one part of a room – enough to cause breathing problems for the organisms in the room? ...
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90 views

Fundamental equation of thermodynamics for magnetocaloric materials

The fundamental equation of thermodynamics, as us chemists (and chemical engineers!) are used to seeing it, is $$ dG = - S~dT + V~dP + \sum_{i}\mu_i~dN_i$$ This gives the Gibbs free energy as a ...
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Is azide paramagnetic?

Is the azide ion ($\ce{N3-}$) paramagnetic? How do I use molecular orbital theory to show that it is or isn't? I drew a sine wave diagram and filled up the $1\pi$ and $2\pi$ MOs, and since there ...
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By using the magnetic susceptibility, calculate the number of unpaired elections in the complex

I'm having trouble making sense of this answer. I believe I am doing all the steps right, but my main concern is that I am not arriving at a whole number. If my answer is correct, should I just round ...
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Is a transition metal with 7 d electons ever diamagnetic?

A transition metal with 7 d electrons forms a complex ion with cyanide. I know that cyanide is a high field ligand, which means the electrons will pair before moving to the next energy level, but ...
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How to visualize or think about spin waves (magnons)?

According to Wikipedia: "A magnon is a quasiparticle, a collective excitation of the electrons' spin structure in a crystal lattice." I have little pictures in my mind for other quasiparticles. For ...
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Can covalently bonded hydrocarbons be influenced by a magnetic field?

I am doing a University project on Magnetically Assisted Combustion and am curious to know more about how magnetic fields may or may not affect gases such as butane and propane. I think I am right ...
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Predicting orbital angular momentum effects on magnetic moments

For metal complexes with $A_{2}$ or $E$ ground state terms there is angular momentum contribution to the magnetic moment which is generally positive for more than half-filled subshells and negative ...
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Orbitals involved in Ni(CO)₄

Which orbitals are filled? Is it diamagnetic? According to CFT, $\ce{CO}$ is a strong field ligand, so will it pair the electrons and be diamagnetic?
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What happens if you make a gas of magnetic particles [closed]

I was reading todays SMBC which asked what happens if you make a gas of magnetic particles So what does happen if you make a gas of magnetic particles?
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Are there any magnetic particles that are safe to inhale?

In medicine, there is an (old?) experiment where a subject is asked to inhale radioactive Xenon gas, and radiation counters are placed at different positions near the lungs. Using this experiment, it ...
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214 views

Magnetic stirrer with hot plate

I did not know there are products such as a magnetic stirrer with a hot plate, enabling one to apply heat and stirring to a solution with relative ease. Did I understand correctly, that device needs a ...
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645 views

Magnetic moments of tetrahedral Cobalt (II) and (III) complexes

From the spin-only formula we can predict that for tetrahedral cobalt (II) complexes $$m_{eff} = 3.87 \mu_B $$ This ignores orbital angular momentum effects, which result in higher magnetic moments ...
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magnetism in metallic alloys

i am working with a multicomponent alloy system for soft magnetic application,it is iron based and have composition of Fe Mn Si B Mo,how can i calculate the net magnetic moment or saturation ...
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385 views

Why are paramagnetic materials attracted to ferrimagnetic materials(such as iron, nickel, and cobalt)?

Diamagnetism exists in every molecule or ionic compound. It is the ability to be repelled by a magnetic field. So you might think from this, that liquid oxygen would either be repelled by the magnet ...
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Why is B2 paramagnetic?

Why is B2 paramagnetic? It's just 2 borons with a triple bond between them. Aren't all the electrons paired?
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Is NaCl paramagnetic?

My teacher told yes that salt is paramagnetic and it is attracted by magnet slightly. But when I tried that at home it did not work.
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chemically inert molecule with piezoelectric properties

For a research project, I'm looking into existing chemical molecules that have the following properties: It is mostly chemically inert, safe for animals and children It exhibits piezoelectricity - ...
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Total magnetic moment of atom

Whenever I read about coordination compounds in my textbooks, I always find a discussion about spin-only magnetic moment which is given by $\sqrt{n(n+2)}$ BM, Where $n$ is the number of unpaired ...
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Diamagnetism in sulphur

Sulphur is a diamagnetic element, meaning that it has no unpaired electrons. But its electronic configuration for valence shell is just like oxygen because they are in the same group i.e ns2, np4. My ...
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How is the magnetic property of an element affected when the element is part of a compound?

Data on this site conveys that Neodymium is paramagnetic. Yet the Neodymium magnets out there make extremely strong magnets. I'm guessing these are not pure neodymium magnets but some kind of ...
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What is antisymmetric exchange? What is J-strain? Where does it come from?

I'm reading a paper1 by Sanakis, et al. that characterises the magnetic coupling in the $\ce{Fe3S4}$ clusters present in bacterial ferredoxin II and beef heart aconitase as arising through something ...
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What is it about the relationship between the Fe²⁺ and Fe³⁺ in magnetite that makes it diamagnetic?

Hematite is composed of $\ce{Fe2O3}$, and is paramagnetic, whereas magnetite is $\ce{Fe3O4}$ and is diamagnetic. Magnetite's nature is due to the presence of both $\ce{Fe^{2+}}$ and $\ce{Fe^{3+}}$ ...