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 ...

learn more… | top users | synonyms

-1
votes
1answer
44 views

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

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 ...
3
votes
0answers
28 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. ...
1
vote
1answer
31 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 ...
1
vote
0answers
32 views

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 ...
3
votes
1answer
62 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 ...
-1
votes
1answer
20 views

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 ...
0
votes
0answers
14 views

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 ...
0
votes
0answers
15 views

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 ...
0
votes
0answers
20 views

Odd 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 ...
10
votes
1answer
293 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 ...
5
votes
2answers
96 views

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, ...
1
vote
0answers
28 views

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 ...
5
votes
2answers
63 views

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 ...
4
votes
1answer
120 views

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 ...
0
votes
0answers
34 views

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?
37
votes
3answers
5k views

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? ...
3
votes
1answer
83 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 ...
5
votes
1answer
112 views

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 ...
4
votes
1answer
42 views

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 ...
7
votes
1answer
118 views

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 ...
2
votes
2answers
137 views

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 ...
8
votes
1answer
183 views

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 ...
1
vote
0answers
46 views

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?
3
votes
1answer
2k views

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?
6
votes
1answer
646 views

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 ...
4
votes
1answer
186 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 ...
1
vote
1answer
445 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 ...
1
vote
0answers
23 views

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 ...
0
votes
1answer
318 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 ...
1
vote
1answer
3k views

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?
1
vote
2answers
621 views

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.
2
votes
1answer
168 views

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 - ...
6
votes
1answer
4k views

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 ...
3
votes
1answer
2k views

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 ...
5
votes
1answer
554 views

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 ...
23
votes
2answers
432 views

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 ...
5
votes
2answers
711 views

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 $\ce{Fe^{3+}}$ ...