Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Inner electrons *might* interact
sparkgap
International Hazard
*****




Posts: 1234
Registered: 16-1-2005
Location: not where you think
Member Is Offline

Mood: chaotropic

[*] posted on 2-8-2008 at 09:41
Inner electrons *might* interact


I wish to share to the rest of you this interesting piece of news http://www.sciencenews.org/view/generic/id/34815/title/Chem_... :

Quote:

In an upcoming Physical Review Letters, Stanimir Bonev of Dalhousie University in Halifax, Canada and his collaborators describe how they used a supercomputer to calculate the behavior of lithium at pressures above 1.5 million atmospheres and temperatures as high as 3,000 kelvins (about 2,700° Celsius).


Although, since this is all a simulation, I expect the reality to be *slightly* more complicated. What are your thoughts?

sparky (~_~)




"What's UTFSE? I keep hearing about it, but I can't be arsed to search for the answer..."
View user's profile View All Posts By User
-jeffB
Hazard to Others
***




Posts: 185
Registered: 6-12-2007
Member Is Offline

Mood: No Mood

[*] posted on 4-8-2008 at 18:00


If lithium can bond with its inner electrons, forming a new class of compounds, would the resulting ion be "neo-lithic"?
View user's profile View All Posts By User
JohnWW
International Hazard
*****




Posts: 2849
Registered: 27-7-2004
Location: New Zealand
Member Is Offline

Mood: No Mood

[*] posted on 4-8-2008 at 21:25


If lithium could bond using its 1s electrons, then helium, in which the same electrons are less tightly held due to its lesser nuclear charge, should be able to similarly bond using them. However, as far as I know, this has not been observed in stable isolatable compounds, although the cation HeH+, isoelectronic with the H2 molecule, has been detected by mass-spectrometry as a transient product of high-velocity atomic collisions in the gas phase between He and protons. HeF+, isoelectronic with HF, should be similarly detectable as such a transient species. The isoelectronic dipositive cations with Li+ in place of He should be even more difficult to form and less stable. Another possibility is that BH3 or BF3 might just be able to accept the electron pair from He, similarly to that of the H- anion, to form BH3He isoelectronic with BH4-, or BF3He isolelectronic with BF3H-. Alternatively, a BH4- anion with one of the H atoms as tritium (H-3), with a half-life of about 12 years, just might slowly convert to BH3He due to decay of the tritium.

[Edited on 5-8-08 by JohnWW]
View user's profile View All Posts By User
-jeffB
Hazard to Others
***




Posts: 185
Registered: 6-12-2007
Member Is Offline

Mood: No Mood

[*] posted on 5-8-2008 at 08:30


Quote:
Originally posted by JohnWW
Another possibility is that BH3 or BF3 might just be able to accept the electron pair from He, similarly to that of the H- anion, to form BH3He isoelectronic with BH4-, or BF3He isolelectronic with BF3H-. Alternatively, a BH4- anion with one of the H atoms as tritium (H-3), with a half-life of about 12 years, just might slowly convert to BH3He due to decay of the tritium.


You mean set up a BTH3- anion, then let the T transmute into He in-place? It seems to me that the recoil from ejecting a 6keV electron would be a bit disruptive.
View user's profile View All Posts By User
franklyn
International Hazard
*****




Posts: 3026
Registered: 30-5-2006
Location: Da Big Apple
Member Is Offline

Mood: No Mood

[*] posted on 5-8-2008 at 08:53
Another Nobel prize winner here


Quote _
Fully insulated bath uses cooling mixtures to attain temperatures as low as -1000°F (-730°C) !
I kid you not > http://www.dmscientific.com/koehler_k22753.html

I wonder what that is in Kelvin, that cooling mixture must be pure Unobtanium
http://m3.shatterpoint.org/index.php/Unobtainium

speaking of which
http://www.gigawidget.com/unobtainium.index.html

It is understood that if you crush matter enough it consolidates into neutronium.
Intermediate metastable products are unknown and not predicted. Unobtainably
high pressure chemistry can only exist under those conditions, so whats the point?

.
View user's profile View All Posts By User
tumadre
Hazard to Others
***




Posts: 169
Registered: 10-5-2005
Member Is Offline

Mood: No Mood

[*] posted on 5-8-2008 at 12:15


Quote:
Originally posted by -jeffB
If lithium can bond with its inner electrons, forming a new class of compounds, would the resulting ion be "neo-lithic"?


considering "the enormous pressure squeezed the lithium to as little as two-thirds of the volume..."

Bonding is not the first thing that comes to mind.

I'd say the outer shell simply does not have the strength to hold the atoms apart and the inner shell is helping.
View user's profile View All Posts By User
YT2095
International Hazard
*****




Posts: 1091
Registered: 31-5-2003
Location: Just left of Europe and down a bit.
Member Is Offline

Mood: within Nominal Parameters

[*] posted on 6-8-2008 at 01:15


Quote:
Originally posted by franklyn
Quote _
Fully insulated bath uses cooling mixtures to attain temperatures as low as -1000°F (-730°C) !
I kid you not > http://www.dmscientific.com/koehler_k22753.html


Cool (no, Really!), and as far as I know Bose-Einstein condensate isn`t a listed item yet :P




\"In a world full of wonders mankind has managed to invent boredom\" - Death
Twinkies don\'t have a shelf life. They have a half-life! -Caine (a friend of mine)
View user's profile View All Posts By User
franklyn
International Hazard
*****




Posts: 3026
Registered: 30-5-2006
Location: Da Big Apple
Member Is Offline

Mood: No Mood

[*] posted on 28-2-2014 at 23:28
Another look at a recurring idea


I have always maintained that physics is most interesting at the extremes.
Seems to be so with chemistry also.

www.science20.com/news_articles/softly_impossible_table_salt...

If the compounds produced are stable at STP then you may just have something.

Related posts
www.sciencemadness.org/talk/viewthread.php?tid=1970&page...
www.sciencemadness.org/talk/viewthread.php?tid=1970&page...

.




Techniques to Disrupt, Deviate and Seize Control of an Internet Forum In case you wonder W T F ! is going on here ?
www.zerohedge.com/contributed/2012-10-28/cointelpro-techniques-dilution-misdirection-and-control-internet-forum https://web.archive.org/web/20120814124000/www.washingtonsblog.com/2012/08/the-15-rules-of-internet-disinformation.html
___________________________________________________________________________________________________________________
___________________________________________________________________________________________________________________
___________________________________________________________________________________________________________________
View user's profile View All Posts By User
elementcollector1
International Hazard
*****




Posts: 2684
Registered: 28-12-2011
Location: The Known Universe
Member Is Offline

Mood: Molten

[*] posted on 28-2-2014 at 23:31


-730 degrees C?!
I thought 0 K was the minimum, and that's at -273.15 degrees C!




Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
View user's profile View All Posts By User
HeYBrO
National Hazard
****




Posts: 289
Registered: 6-12-2013
Location: 'straya
Member Is Offline

Mood: :)

[*] posted on 26-10-2014 at 22:18


I thought this might fit here; "new type of chemical bond"



View user's profile View All Posts By User
j_sum1
Administrator
********




Posts: 5753
Registered: 4-10-2014
Location: Unmoved
Member Is Offline

Mood: Possessor of a tidy and organised lab. Now to mess it up again.

[*] posted on 26-10-2014 at 22:33


Very similar to this:
http://www.periodicvideos.com/videos/feature_hydrogen41.htm
View user's profile View All Posts By User
smaerd
International Hazard
*****




Posts: 1262
Registered: 23-1-2010
Member Is Offline

Mood: hmm...

[*] posted on 27-10-2014 at 13:25


Quote: Originally posted by elementcollector1  
-730 degrees C?!
I thought 0 K was the minimum, and that's at -273.15 degrees C!
.

My room is -638*C relative to molten aluminum!

edit - also pretty sure that's a typo. Read a little further down the website (http://www.dmscientific.com/koehler_k22753.html)

Quote:
Temperature Range: +100°F to -1000°F (+37.8°C to -73.30°C)


-73.30*C is ~-100F, so yea someone in marketing missed some decimal points haha.

[Edited on 27-10-2014 by smaerd]




View user's profile View All Posts By User

  Go To Top