Structure of Elusive Boron Monoxide Finally Determined After 83 Years (phys.org) 26
In an effort to discover new 2D materials, a team of scientists from Ames National Laboratory determined the structure of boron monoxide. Phys.Org reports: This compound was first discovered in the 1940s and maintained research interest throughout the years. Scientists were, however, unable to determine the structure of the material due to technological limitations of the time. Using new NMR methods and previously unavailable analytical tools, the team from Ames Lab finally solved the structure of this deceptively simple material. "We initially weren't really looking into studying this particular material," said Frederic Perras, a scientist from Ames Lab and member of the research team. "We were actually trying to make a carbon-free covalent organic framework." A covalent organic framework is a low-density and porous material with a periodically ordered crystal structure. It is composed of organic molecules that are linked together through covalent bonds. [...]
Perras explained that boron monoxide is made using a precursor molecule that acts like building blocks. These molecules stick together through dehydration reactions. The key to understating the structure is to figure out how the blocks are physically arranged. "So we developed some NMR methods that allow us to study the orientation of these building blocks relative to each other. Basically, we found that adjacent precursor molecules were getting organized parallel to each other, which matched one of the previously proposed models," Perras said. "We also applied a lot of other techniques, including powder X-ray diffraction, which showed that these nanosheets organized themselves into what's called a turbostratic arrangement," said Perras. He explained that these stacked nanosheets are like a stack of paper thrown onto a desk. Once they land, they are not perfectly aligned, but they remain in a stack. The findings have been published in the journal American Chemical Society.
Perras explained that boron monoxide is made using a precursor molecule that acts like building blocks. These molecules stick together through dehydration reactions. The key to understating the structure is to figure out how the blocks are physically arranged. "So we developed some NMR methods that allow us to study the orientation of these building blocks relative to each other. Basically, we found that adjacent precursor molecules were getting organized parallel to each other, which matched one of the previously proposed models," Perras said. "We also applied a lot of other techniques, including powder X-ray diffraction, which showed that these nanosheets organized themselves into what's called a turbostratic arrangement," said Perras. He explained that these stacked nanosheets are like a stack of paper thrown onto a desk. Once they land, they are not perfectly aligned, but they remain in a stack. The findings have been published in the journal American Chemical Society.
What about DiHydrogen Monoxide? (Score:3, Funny)
Re:What about DiHydrogen Monoxide? (Score:5, Funny)
Anybody concerned about the chemical can read more about it here: https://dhmo.org/facts.html [dhmo.org]
Re:What about DiHydrogen Monoxide? (Score:5, Funny)
Dihydrogen monoxide is a dangerous chemical,
You are significantly downplaying how dangerous this substance is. Without exception, everyone who has ever come into contact with the substance has died.
It's amazing we still keep it around.
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You are significantly downplaying how dangerous this substance is. Without exception, everyone who has ever come into contact with the substance has died.
So either we're now living in a simulation or are ghosts and don't realize it.
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Does it give you mono?
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I think it would actually be more painful to die inhaling oxygen in liquid form.
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I can't figure out how that can happen. Was it in a steam bath? Some misconfiguration of jacuzzi settings?
The Structure of Boron Monoxide (Score:2, Funny)
This article stinks; it's all about BO.
Wait, what's the date again?
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This article stinks; it's all about BO.
Wait, what's the date again?
BO was a thing back in the 1940s when it was discovered...per TFS
yawn (Score:2)
Article is Booron....
Gibberish (Score:3)
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Re: (Score:2)
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The article doesn't say "carbon free organic material".
The article does say "carbon-free covalent organic framework". A covalent organic framework uses organic precursors to build up a crystalline structure. The original study was to try to use organic precursors to build something where none of the carbon became part of the final structure.
Slashdot a spam engine now? (Score:3)
Why am I seeing a recurring popup asking for my email address and why can I not permanently dismiss it?
Re: (Score:2)
Why are you doing anything on the modern Web without an adblocker?
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I'm not. It slipped right past uBo because it is new and is not served from a third party domain.
Why are you so ok with /. getting in on the data slurp? I'll go ahead and assume you have not seen all the third party sharing they will be doing as linked in the pop-up's "privacy" statement..
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Fair enough. I'm not okay with it either, I'm just not surprised, because i pretty much expect this kind of crap these days.
Article abstract (Score:2)
"We find that the material is composed of D2h-symmetric O2B–BO2 units that organize to form larger B4O2 rings. Further, powder diffraction experiments additionally reveal that these units organize to form two-dimensional layers with a random stacking pattern." https://pubs.acs.org/doi/pdf/1... [acs.org]
The techniques they used are standard in materials engineering laboratories. A common pattern in science: nothing here is a huge feat, but they had a cool idea. If the BO structure enables boron chemistry to expl
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Note that the title of the paper is "The Structure of Boron Monoxide", not "The Technique of Manufacture of Boron Monoxide". The finding that they are reporting is the structure, which was previously unknown despite the fact that they've been able to make boron monoxide for a while.
BO (Score:3)
Stolen boron (Score:2)
Sounds like... (Score:1)
Scientists had a bit of a BO problem here.
chemistry insights (Score:2)
Bah. I've known the structure of Moron Monoxide for over 70 years. It's Mo-O. There were lots of MoO molecules in high school especially the jocks.
What? Boron? Oh.