Nikolay Tumanov
@ntumanovxray.bsky.social
Crystallographer at UNamur, SC and PXRD. Structures and 3D-printing. Sometime 3D-printing of the structures. Chief Scientific Officer at GingerBread Instruments
Yep, pseudo-orthorhombic cell, exactly what I need from powder diffraction... And no 21 axis in the structure.
#crystallography #chemchat
#crystallography #chemchat
November 25, 2025 at 2:08 PM
Yep, pseudo-orthorhombic cell, exactly what I need from powder diffraction... And no 21 axis in the structure.
#crystallography #chemchat
#crystallography #chemchat
I introduce our fresh PhD student to the term “deliquescence”.
Blue curve - fast PXRD measurement of a sample; black curve - longer measurement of “Powder” XRD. Said “powder” after measurement.
Ok, it means that next point of our program is “how to do PXRD of an air-sensitive sample”
#chemchat
Blue curve - fast PXRD measurement of a sample; black curve - longer measurement of “Powder” XRD. Said “powder” after measurement.
Ok, it means that next point of our program is “how to do PXRD of an air-sensitive sample”
#chemchat
November 18, 2025 at 10:26 PM
I introduce our fresh PhD student to the term “deliquescence”.
Blue curve - fast PXRD measurement of a sample; black curve - longer measurement of “Powder” XRD. Said “powder” after measurement.
Ok, it means that next point of our program is “how to do PXRD of an air-sensitive sample”
#chemchat
Blue curve - fast PXRD measurement of a sample; black curve - longer measurement of “Powder” XRD. Said “powder” after measurement.
Ok, it means that next point of our program is “how to do PXRD of an air-sensitive sample”
#chemchat
It is not "cutting horizontally", it is called "coronal section"!
November 17, 2025 at 9:38 PM
It is not "cutting horizontally", it is called "coronal section"!
Hungarian mineralogist Andor von Semsey (1833–1923) has three minerals named after him. One, Semseyite, named after his surname and _two_ after his first name: Quatrandorite and Senandorite.
#mineralnames #mineral
#mineralnames #mineral
November 16, 2025 at 8:06 PM
Hungarian mineralogist Andor von Semsey (1833–1923) has three minerals named after him. One, Semseyite, named after his surname and _two_ after his first name: Quatrandorite and Senandorite.
#mineralnames #mineral
#mineralnames #mineral
#Australia, I have so many questions:
Why would you call something in Australia as Polar Bear peninsula?
There is (almost) no polar bears in Australia.
It is even not a proper peninsula for most of the year - you know, lack of water.
And last but not least, it is clearly a meerkat.
Why would you call something in Australia as Polar Bear peninsula?
There is (almost) no polar bears in Australia.
It is even not a proper peninsula for most of the year - you know, lack of water.
And last but not least, it is clearly a meerkat.
November 16, 2025 at 7:12 PM
#Australia, I have so many questions:
Why would you call something in Australia as Polar Bear peninsula?
There is (almost) no polar bears in Australia.
It is even not a proper peninsula for most of the year - you know, lack of water.
And last but not least, it is clearly a meerkat.
Why would you call something in Australia as Polar Bear peninsula?
There is (almost) no polar bears in Australia.
It is even not a proper peninsula for most of the year - you know, lack of water.
And last but not least, it is clearly a meerkat.
November 14, 2025 at 12:16 PM
Local climbing gym is equipped with a doghouse. Maybe it was something else at the beginning, but now it is definitely the doghouse.
November 12, 2025 at 9:35 PM
Local climbing gym is equipped with a doghouse. Maybe it was something else at the beginning, but now it is definitely the doghouse.
I was almost triggered by my own post, see the picture.
It is the aluminum analogue, not Artificial Idiot analogue...
It is the aluminum analogue, not Artificial Idiot analogue...
November 9, 2025 at 7:42 PM
I was almost triggered by my own post, see the picture.
It is the aluminum analogue, not Artificial Idiot analogue...
It is the aluminum analogue, not Artificial Idiot analogue...
The authors claimed that it is the discrete polyiodide anion, that consist from these fragments.
November 8, 2025 at 10:23 PM
The authors claimed that it is the discrete polyiodide anion, that consist from these fragments.
Just in case if you were wondering about longest iodide in the world, I have answer for you: hexadecaiodide, I₁₆⁴⁻.
pubs.rsc.org/en/content/a...
www.ccdc.cam.ac.uk/structures/S...
#chemsky #chemchat
pubs.rsc.org/en/content/a...
www.ccdc.cam.ac.uk/structures/S...
#chemsky #chemchat
November 8, 2025 at 7:31 PM
Just in case if you were wondering about longest iodide in the world, I have answer for you: hexadecaiodide, I₁₆⁴⁻.
pubs.rsc.org/en/content/a...
www.ccdc.cam.ac.uk/structures/S...
#chemsky #chemchat
pubs.rsc.org/en/content/a...
www.ccdc.cam.ac.uk/structures/S...
#chemsky #chemchat
@dr-berionni.bsky.social group synthesized something weird. Again. Accidentally, this time.
It is first time when I see Cl2I- anion, and there only ~60 structures in the CSD.
#crystallography #RealTimeChem #chemsky
It is first time when I see Cl2I- anion, and there only ~60 structures in the CSD.
#crystallography #RealTimeChem #chemsky
November 6, 2025 at 7:02 PM
@dr-berionni.bsky.social group synthesized something weird. Again. Accidentally, this time.
It is first time when I see Cl2I- anion, and there only ~60 structures in the CSD.
#crystallography #RealTimeChem #chemsky
It is first time when I see Cl2I- anion, and there only ~60 structures in the CSD.
#crystallography #RealTimeChem #chemsky
Also had a look on famous animals of Provence in nature - manatees.
November 3, 2025 at 6:58 PM
Also had a look on famous animals of Provence in nature - manatees.
We visited the Grand Canyon recently.*
* French one, aka Gorges du Verdon.
* French one, aka Gorges du Verdon.
November 3, 2025 at 6:58 PM
We visited the Grand Canyon recently.*
* French one, aka Gorges du Verdon.
* French one, aka Gorges du Verdon.
I think it is a first time when I saw a rainbow at noon (astronomically speaking).
November 3, 2025 at 6:38 PM
I think it is a first time when I saw a rainbow at noon (astronomically speaking).
A structure of a calixarene with ACN attached. Colleagues were expecting structures (in plural form) of this calixarene with different ligands, but ACN binds too well, not letting other guests. So we have we few datasets for the same ACN structure.
#crystallography #RealTimeChem
#crystallography #RealTimeChem
October 17, 2025 at 9:30 PM
A structure of a calixarene with ACN attached. Colleagues were expecting structures (in plural form) of this calixarene with different ligands, but ACN binds too well, not letting other guests. So we have we few datasets for the same ACN structure.
#crystallography #RealTimeChem
#crystallography #RealTimeChem
@b-kajetan.bsky.social is making holes in a carbene - deformation density map from NoSpherA2 with Cu data.
October 16, 2025 at 12:28 PM
@b-kajetan.bsky.social is making holes in a carbene - deformation density map from NoSpherA2 with Cu data.
But you forgot ago MS politics "We don't care what is your settings". AFAIK, one need to go deeper to system setup to fix it, I did it for my home PC long time ago.
October 16, 2025 at 12:17 PM
But you forgot ago MS politics "We don't care what is your settings". AFAIK, one need to go deeper to system setup to fix it, I did it for my home PC long time ago.
Pardon my French, but this really WTF moment. I was kinda working, you know and I didn’t ask for any updates.
October 16, 2025 at 11:55 AM
Pardon my French, but this really WTF moment. I was kinda working, you know and I didn’t ask for any updates.
Hey, @ccdc.cam.ac.uk, when is the cut off date for #CSDWrapped statistics with year? End of October?
#crystallography
#crystallography
October 16, 2025 at 9:24 AM
Hey, @ccdc.cam.ac.uk, when is the cut off date for #CSDWrapped statistics with year? End of October?
#crystallography
#crystallography
Btw, should it be “single-crystal diffraction”? Because for me “single-crystal” is an adjective in this case.
October 8, 2025 at 8:29 PM
Btw, should it be “single-crystal diffraction”? Because for me “single-crystal” is an adjective in this case.
A "can you show me a full reaction?" structure again, from my usual supplier @dr-berionni.bsky.social group.
*Looking on the news* This a a promising linker for new class of perspective MOFs. (Not really, just a starting material for different stuff).
#crystallography #RealTimeChem
*Looking on the news* This a a promising linker for new class of perspective MOFs. (Not really, just a starting material for different stuff).
#crystallography #RealTimeChem
October 8, 2025 at 7:53 PM
A "can you show me a full reaction?" structure again, from my usual supplier @dr-berionni.bsky.social group.
*Looking on the news* This a a promising linker for new class of perspective MOFs. (Not really, just a starting material for different stuff).
#crystallography #RealTimeChem
*Looking on the news* This a a promising linker for new class of perspective MOFs. (Not really, just a starting material for different stuff).
#crystallography #RealTimeChem
I hope to finish the rest of wallpaper groups cookies during this New Year holidays :)
October 7, 2025 at 8:57 PM
I hope to finish the rest of wallpaper groups cookies during this New Year holidays :)
Speaking about working conditions - here is the photo of my previous place (I was passing by yesterday).
And yes, I have no idea what is going on :)
And yes, I have no idea what is going on :)
October 5, 2025 at 1:27 PM
Speaking about working conditions - here is the photo of my previous place (I was passing by yesterday).
And yes, I have no idea what is going on :)
And yes, I have no idea what is going on :)
Somehow I ended up inside a NMR console this afternoon with realization that I am touching NMR only when it is not working.
October 3, 2025 at 5:51 PM
Somehow I ended up inside a NMR console this afternoon with realization that I am touching NMR only when it is not working.
I think that this year I brought 10-30 people to #MinCup25 with this whiteboard.
Also my typos accidentally produced a cute mineral name - tugtupetite.
Also my typos accidentally produced a cute mineral name - tugtupetite.
October 1, 2025 at 8:38 PM
I think that this year I brought 10-30 people to #MinCup25 with this whiteboard.
Also my typos accidentally produced a cute mineral name - tugtupetite.
Also my typos accidentally produced a cute mineral name - tugtupetite.