24 7 / 2014

neworganicmolecules:

Today’s reaction is brought to you by the color orange

23 7 / 2014

thenomadundergrad:

Cleaned out my column by inverting it over a beaker for a day, and I noticed this cool stratification effect caused by the dried silica.Its like a planet Jupiter in a beaker 

thenomadundergrad:

Cleaned out my column by inverting it over a beaker for a day, and I noticed this cool stratification effect caused by the dried silica.
Its like a planet Jupiter in a beaker 

22 7 / 2014

silverwolf47:

Pretty white crystals!
These crystals of an amidinium salt were later deprotonated to produce an N-heterocyclic carbene.

silverwolf47:

Pretty white crystals!

These crystals of an amidinium salt were later deprotonated to produce an N-heterocyclic carbene.

21 7 / 2014

spontaneousmindcombustion:

Just had to share this cool “professor” tree of sorts belonging to my Quantitative chemistry professor. In some way, this means I’m possibly hearing the words these great men may have once spoken. AH
I guess I come from Kekule, Gay-Lussac, Fischer, Bayer, and so many greats! AH I am totally starstruck right now.
(Image not mine)

spontaneousmindcombustion:

Just had to share this cool “professor” tree of sorts belonging to my Quantitative chemistry professor. In some way, this means I’m possibly hearing the words these great men may have once spoken. AH

I guess I come from Kekule, Gay-Lussac, Fischer, Bayer, and so many greats! AH I am totally starstruck right now.

(Image not mine)

20 7 / 2014

thenomadundergrad:

The start (left) and the end (right) of a diazonium coupling reaction which was left to run for two daysIn the reaction, ferrocene was coupled to a 1-amino-(napthyl)-5-GlyBOC species. 

thenomadundergrad:

The start (left) and the end (right) of a diazonium coupling reaction which was left to run for two days
In the reaction, ferrocene was coupled to a 1-amino-(napthyl)-5-GlyBOC species. 

19 7 / 2014

cenchempics:

BLUE
Serial dilutions of CuSO4, made as part of an AP chemistry lab experiment. The simple beauty of a colorful solution can make a mundane lesson interesting and plant the seed of a lifelong interest in science.

Submitted by Claire Liu (submit your photo here)

cenchempics:

BLUE

Serial dilutions of CuSO4, made as part of an AP chemistry lab experiment. The simple beauty of a colorful solution can make a mundane lesson interesting and plant the seed of a lifelong interest in science.

Submitted by Claire Liu (submit your photo here)

18 7 / 2014

labphoto:

Subliming 4-amino-4H-1,2,4-triazole. It is quite interesting that a molecule with that much nitrogen in it does not decompose at even 160 °C,  it only sublimes a bit. Sublimation is the transition of a substance directly from the solid to the gas phase without passing through an intermediate liquid phase.
The 4-amino-4H-1,2,4-triazole looks like this: 

labphoto:

Subliming 4-amino-4H-1,2,4-triazole. It is quite interesting that a molecule with that much nitrogen in it does not decompose at even 160 °C,  it only sublimes a bit. Sublimation is the transition of a substance directly from the solid to the gas phase without passing through an intermediate liquid phase.

The 4-amino-4H-1,2,4-triazole looks like this: 

17 7 / 2014

atomicallena:

B38 Fullerene Analogue
Illustrated above is a highly symmetric (point symmetry of D2h) all-boron fullerene-like structure. B38 is composed of 56 triangles and 4 hexagons, with the latter being “crucial to the stabilization of the structure.”
Interestingly, the structure includes “50 σ- and 32 π- delocalized to form multi-center bonds… apparently [satisfying] the 2(N+1)2 rule of spherical aromaticity, with N=4 and 3, respectively” (more on aromaticity here). The high double aromaticity (σ- and π-) in combination with a large (HOMO-LUMO) energy gap (~2.25 eV) contribute to the structure’s unexpected chemical stability.
Lv, J.; Wang, Y.; Zhu, L.; Ma, Y. B38: an all-boron fullerene analogue. Nanoscale. 2014 / DOI: 10.1039/C4NR01846J

atomicallena:

B38 Fullerene Analogue

Illustrated above is a highly symmetric (point symmetry of D2h) all-boron fullerene-like structure. B38 is composed of 56 triangles and 4 hexagons, with the latter being “crucial to the stabilization of the structure.”

Interestingly, the structure includes “50 σ- and 32 π- delocalized to form multi-center bonds… apparently [satisfying] the 2(N+1)2 rule of spherical aromaticity, with N=4 and 3, respectively” (more on aromaticity here). The high double aromaticity (σ- and π-) in combination with a large (HOMO-LUMO) energy gap (~2.25 eV) contribute to the structure’s unexpected chemical stability.


Lv, J.; Wang, Y.; Zhu, L.; Ma, Y. B38: an all-boron fullerene analogue. Nanoscale. 2014 / DOI: 10.1039/C4NR01846J

(Source: pubs.rsc.org)

16 7 / 2014

cyclopentadiene:

The literature says that this reaction should go from a deep red to yellow-orange. …maybe if I close my eyes and pretend really hard, my product will be pure in the end.

cyclopentadiene:

The literature says that this reaction should go from a deep red to yellow-orange. …maybe if I close my eyes and pretend really hard, my product will be pure in the end.

15 7 / 2014

Testing if some small vials were quartz or glass. Quartz transmits mid-range UV light, whereas glass will block it. I need quartz vials for an experiment involving photodegradation.