The Stack Overflow podcast is back! Listen to an interview with our new CEO.

Questions tagged [magnetism]

For questions about determining the paramagnetism, diamagnetism, etc. of chemical species and other chemical applications of magnetism. Note that questions oriented towards physical aspects of electromagnetism are off-topic on this site.

Filter by
Sorted by
Tagged with
3
votes
0answers
37 views

Is there any reasonably inert magnetic oxide?

I spent yesterday evening looking for data on magnetic oxides. What is easily available isn't well organized, so I ask here in hope someone can remember. I'm looking for a magnetic oxide (that is, an ...
4
votes
1answer
85 views

Why does concentration of solutions of alkali metals in liquid ammonia change the magnetic properties?

In "NCERT Chemistry for Class XI - Volume II", in chapter "s-block elements", under the topic "Chemical Properties of alkali metals", it is given: (vi) Solutions in liquid ammonia: The alkali ...
0
votes
0answers
39 views

Electron Spin, and the Stern-Gerlach Experiment

I think I understand the basics of the electron spin. However, I'm trying to figure out how to tell if, when shooting a beam of atoms (the Stern-Gerlach experiment), how to tell if an element will ...
2
votes
1answer
384 views

Magnetic mercury

Well, since I'm not sure, quite simply: Is there a possible way (apart from running a current through in the presence of a perpendicular $\mathbf{B}$ field) to make a small mixture of mercury magnetic ...
4
votes
1answer
1k 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 ...
0
votes
1answer
42 views

Maximum metal-metal distance for antiferromagnetic coupling

Imagine a transition metal complex with multiple open-shell transition metal cations. If the metals are relatively close in distance, it is possible that antiferromagnetic coupling will occur between ...
8
votes
2answers
355 views

How do I solve such questions on paramagnetism and ferromagnetism?

Match the type of magnetism given in Group I with the material given in Group II: $$ \begin{array}{ll|ll} \hline & \textbf{Group I} & & \textbf{Group II} \\ \hline \text{P} & \...
1
vote
0answers
39 views

Why would ferrofluid harden?

I recently decided to make my own ferrofluid toy to play with. I built a sealed enclosure at my local fablab, and the end result was perfect. It worked just like in the videos you see online, and I ...
6
votes
1answer
3k 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 ...
3
votes
3answers
190 views

Is [Co(NH₃)₄Cl₂]Cl paramagnetic or diamagnetic?

$\ce{NH3}$ is known to be a strong field ligand, while $\ce{Cl}$ is known to be a weak field ligand. Is $\ce{[Co(NH3)4Cl2]Cl}$ a high spin complex or a low spin complex? I assumed this to be a high ...
0
votes
0answers
42 views

Why isn't aluminum ferromagnetic?

I know that the ferromagnetism of iron is because of its unpaired d electrons, but I also know that there are other metals with unpaired electrons like aluminum that are not ferromagnetic. Is the ...
0
votes
0answers
90 views

Magnetic properties of potassium dichromate

Is $\ce{K_2Cr_2O_7}$ diamagnetic or paramagnetic? While näive theory predicts it's diamagnetic, but we can't be sure. I cannot find any literature on this topic. Nor does Wiki has that information. ...
5
votes
0answers
48 views

Paramagnetism of group 2 elements

As far as I know, paramagnetism in normal substance arises due to unpaired electrons. I believe that the valence electrons of group 2 elements (Be, Mg, Ca, Sr, Ba) are paired. But, here in the list ...
18
votes
0answers
279 views

Single-molecule magnet with electrically-controlled permeability: How does the Titan Shield from Deus Ex work?

In a recent installment of Deus Ex game series there is an augmentation called "Titan Shield" (it has nothing to do with $\ce{Ti}$ element): A neodymium skin underlay matrix built of nano-meshed ...
1
vote
0answers
25 views

How do hard drives store information using magnetic layering? (Antiferromagnetic/ferromagnetic films)

I am doing some work with solid state materials in some chemistry courses and I've been doing some research into exactly how a hard drive stores information as 1's and 0's. It seems like a bunch of ...
3
votes
1answer
813 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
votes
1answer
105 views

Table for magnetic moments for all elements in periodic table? [closed]

I'm trying to look for a table for magnetic moments for all elements of the periodic table for my research project in computational chemistry, can anyone direct me to a suitable one?
7
votes
1answer
264 views

Only d orbital electrons for spin only magnetic moment

During my chemistry lessons and self studies, I have come upon many instances where I observed that during calculations of spin only magnetic moment of transition elements only the d orbital electrons ...
1
vote
0answers
422 views

Is cobalt (III) hexaaqua paramagnetic or diamagnetic?

The complex ion $\ce{[Co(H2O)6]^3+}$ has $\ce{Co}$ in the $+3$ oxidation state, meaning it has an electron configuration of $[Ar] 4s^0 3d^6$. Therefore it has 4 unpaired electrons and would be ...
4
votes
0answers
106 views

Approximate magnetic susceptibility of these liquid propellants?

This question asks if the comparatively large paramagnetic susceptibility of liquid oxygen (LOX) is considered when designing rocket tank and engine systems. This comment suggests fuels such as RP-1 (...
0
votes
0answers
42 views

Is Neodymium Powder Magnetic?

In attempting to make magnetized neodymium (NdFeB) powder, I grinded neodymium magnets into a powderusing a belt sander. However, I found that the magnetic properties of the neodymium had decreased ...
0
votes
2answers
5k 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.
1
vote
0answers
41 views

Other than ultracold lithium gas, are any ferromagnetic or magnetic gasses known or hypothesized?

I'm dealing with an interactive work of fiction right now, and one proposal is to combine two types of puzzles with a magnetic gas. I know that fermionic $\ce{^6Li}$, when cooled below $\pu{1 K}$, has ...
-1
votes
1answer
354 views

Is Al2O3 (aluminum oxide) diamagnetic or paramagnetic?

The title about covers it, I am an amateur and I have found that checking 'molecule orbitals' can reveal the answer here but I cannot locate such an orbital. The reason for this question is I am ...
6
votes
2answers
2k views

Why is neodymium the most paramagnetic lanthanide?

My textbook says that paramagnetism rises to a maximum in neodymium. I don't understand how gadolinium has 8 unpaired electrons, whereas neodymium has only 4. Shouldn't paramagnetism be higher in ...
5
votes
0answers
173 views

What is the magnetic moment of potassium hexacyanochromate(II)?

I calculated the magnetic moment of $\ce{K4[Cr(CN)6]}$? in the following way: $\ce{Cr^{+2}}$ has $4$ d electrons. And since $\ce{CN-}$ is a strong field ligand, the electrons will pair up in the $\...
-1
votes
1answer
29 views

Help understanding the equation for Spin Energy in Zero Field

I’m working with a system that experiences spin frustration and for me this is the first time dealing with such a phenomenon. To grasp the concept, I’ve decided to go to the basics and read the ...
2
votes
1answer
53 views

Magnetic couplings using DFT in a spin frustrated system

I’m working with a trimeric copper system that have the classic triangular shape and experiences spin frustration. This is my first time dealing with such system and, so far, from what I’m reading, I ...
1
vote
1answer
86 views

Help understanding external magnetic field sensitivity of radical pair reaction rate

Two recent papers have been published on magnetoreception in birds. In this case it is the ability of the birds to sense the direction of the Earth's magnetic field potentially for navigation. ...
0
votes
1answer
88 views

Van der Waals interaction and magnetic dipole dipole interaction

I have a conceptual question that bothers me. From what I understand, van der Waals forces are the primary source of inter-molecular interaction. There are three different possible origins for van ...
5
votes
2answers
12k views

Why is diboron (B2) paramagnetic?

Why is $\ce{B2}$ paramagnetic? It's just 2 borons with a triple bond between them. Aren't all the electrons paired?
3
votes
1answer
796 views

Does pyrite retain the magnetic properties of its element iron?

You are walking in the mountains and pick up what looks like a nugget of gold. You're aware that fools gold (iron pyrite, $\ce{FeS2}$) exists. Create an experiment to test if this is pure gold or iron ...
4
votes
1answer
576 views

Is Co[Hg(SCN)4] diamagnetic?

I was reading a book and it was mentioned that $\ce{Co[Hg(SCN)4]}$ is diamagnetic. I know that it is made up of $\ce{Hg^2+}$ and $\ce{Co^2+}$. $\ce{Co^2+}$ has 7 electrons which means that it should ...
62
votes
3answers
12k 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? ...
2
votes
1answer
267 views

Jahn Teller distortion and magnetic moments.

It is relatively well known that the discrepancy between the observed and experimental magnetic moments in the first row transition metals is attributed to spin-orbit coupling when it comes to metal ...
1
vote
1answer
154 views

Coordination compounds

Which of the following complex is diamagnetic? $\ce{[Cr(Cl3)(NMe3)]}$ $\ce{[Co(EDTA)]-}$ $\ce{[Cu(CN)(NO2)(NH3)(Py)]}$ $\ce{[Fe(NH3)6]^2+}$ For (4) I found that since $\ce{NH3}$ ...
5
votes
1answer
2k 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 ...
1
vote
2answers
2k views

Is [PdCl2(PMe3)2] diamagnetic or paramagnetic?

Please tell me where I am wrong. The complex will have $\ce{Pd^{2+}}$ ion, which has a $\mathrm{d^8}$ configuration. So, it will have $2$ unpaired electrons. Unpaired electrons will mean that it is ...
10
votes
1answer
1k views

Why is gadolinium specifically used in MRI contrast agents?

Gadolinium(III) chelate complexes are routinely used as contrast agents in magnetic resonance imaging (MRI);1 the usual explanation is that paramagnetic species contain unpaired electrons, which cause ...
1
vote
1answer
27 views

detecting/tracking nano particle [closed]

I am new to nano-sized particles and conducting a very simple experiment using nano particles. In my experiment I have nanomagnetic particles inside water and they are moving due to applied magnetic ...
0
votes
1answer
1k views

What is the relationship between something magnetic and unpaired electrons? [closed]

I don't get how some elements are magnetic. Can someone please explain the relationship between something magnetic and unpaired electrons? Why is cobalt magnetic?
2
votes
0answers
447 views

Magnetic work and the first law of thermodynamics

We commonly encounter the first law of thermodynamics in the form $\mathrm{d}E = T\mathrm{d}S - p\mathrm{d}V + \mu\mathrm{d}N$, which notes the contribution of thermal, pressure-volume, and chemical ...
0
votes
0answers
68 views

Why is the copper in my pan magnetic?

My Momma bought a copper pan made for induction because it was the only one she could find that she wanted and was big enough to pan fry half a chicken. But I noticed something odd about the copper. ...
2
votes
0answers
2k views

Unpaired electrons from magnetic moment

A complex formulated as $\ce{Cs_x[NbCl6]}$ has spin-only magnetic moment $\mu_{s.o}$ of approximately 2 B.M. From this value calculate how many unpaired electrons are present. Spin-only magnetic ...
3
votes
0answers
58 views
5
votes
1answer
158 views

Amine Inversion and Paramagnetism

In amine inversion, there is a planar $sp^2$ intermediate. The electron pair transferred from the blue lobe to the red one during the inversion. It is natural to assume, for a layman like me, that ...
3
votes
0answers
193 views

Magnetic anisotropy of triple bonds

Is the rule for shielding/deshielding areas in NMR bond dependent? The acetylene C triple bond C has deshielding zone perpendicular to the triple bond. Will the same deshielding zone hold true for C ...
3
votes
1answer
2k views

What atom is always paramagnetic and why?

Regardless of its electron configuration, it must always be paramagnetic when it's a single, neutrally charged atom: (A) Carbon (B) Nitrogen (C) Oxygen (D) Neon (E) Argon At first, I eliminated D ...
1
vote
0answers
56 views

Magnetic Water Softener

I've been asked to install some kind of technology to a building with 40 rooms to soften the water. Browsing through the product catalog I found this so called "Magnetic Water Softener", however ...
7
votes
1answer
15k 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 $\sqrt{n(n+2)}\cdot\mu_\mathrm{B}$, where $n$ is the number ...