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
Mineral on-line database ATHENA - made ones in 1994, works for >30 years. Take this Google and co!
athena.unige.ch/athena/
athena.unige.ch/athena/
ATHENA - Pierre Perroud
Athena is a pioneer Website created 1994 at Geneva University. French literature e-texts. Full mineral database with search programs
athena.unige.ch
November 13, 2025 at 9:14 PM
Mineral on-line database ATHENA - made ones in 1994, works for >30 years. Take this Google and co!
athena.unige.ch/athena/
athena.unige.ch/athena/
Reposted by Nikolay Tumanov
⏰ It’s almost time! Join us tomorrow for the first STOE User Talk of the season:
🧪 pTB in NoSpherA2 – Enabling Non-Spherical Refinements within Seconds
👨🔬 Ben Ebel, RWTH Aachen
📅 November 13, 15:00 CET
🔗 Register now — don’t miss it: stoe.clickmeeting.com/ebel/register
🧪 pTB in NoSpherA2 – Enabling Non-Spherical Refinements within Seconds
👨🔬 Ben Ebel, RWTH Aachen
📅 November 13, 15:00 CET
🔗 Register now — don’t miss it: stoe.clickmeeting.com/ebel/register
November 13, 2025 at 9:00 AM
⏰ It’s almost time! Join us tomorrow for the first STOE User Talk of the season:
🧪 pTB in NoSpherA2 – Enabling Non-Spherical Refinements within Seconds
👨🔬 Ben Ebel, RWTH Aachen
📅 November 13, 15:00 CET
🔗 Register now — don’t miss it: stoe.clickmeeting.com/ebel/register
🧪 pTB in NoSpherA2 – Enabling Non-Spherical Refinements within Seconds
👨🔬 Ben Ebel, RWTH Aachen
📅 November 13, 15:00 CET
🔗 Register now — don’t miss it: stoe.clickmeeting.com/ebel/register
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...
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
Ah, found another one: Oskarssonite
www.mindat.org/min-43853.html
www.mindat.org/min-43853.html
November 8, 2025 at 7:12 PM
Ah, found another one: Oskarssonite
www.mindat.org/min-43853.html
www.mindat.org/min-43853.html
Reposted by Nikolay Tumanov
For all you #crystallography people out there - what is your preferred way of acquiring the data when you want to solve the crystal structure from #PXRD? For how long, in what range? Is there anything specific you do?
What software do you use?
#chemistry #crystalstructure
What software do you use?
#chemistry #crystalstructure
November 7, 2025 at 10:42 AM
For all you #crystallography people out there - what is your preferred way of acquiring the data when you want to solve the crystal structure from #PXRD? For how long, in what range? Is there anything specific you do?
What software do you use?
#chemistry #crystalstructure
What software do you use?
#chemistry #crystalstructure
Reposted by Nikolay Tumanov
So I seem to recall hearing once that certain monofluorinated PAH compounds (ie 1-anthracene or 1-naphthalene positions) were carcinogenic (more-so than either the parent compounds or the chloro-derivatives). However I can seem to find a literature source for this. Does anyone know about this?
November 6, 2025 at 10:32 PM
So I seem to recall hearing once that certain monofluorinated PAH compounds (ie 1-anthracene or 1-naphthalene positions) were carcinogenic (more-so than either the parent compounds or the chloro-derivatives). However I can seem to find a literature source for this. Does anyone know about this?
@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
Reposted by Nikolay Tumanov
Are you a PhD/honours student in the Sydney area working with X-ray/Neutron techniques? Great (and very friendly) opportunity to present your work at the Australian X-ray Analytical Assoc's student day coming up on the 20th Nov www.eventbrite.com/e/axaa-nsw-s...
AXAA NSW student symposium 2025
Join us at the University of Technology Sydney for the 2025 NSW Student Symposium hosted by the AXAA and sponsored by Dectris.
www.eventbrite.com
November 4, 2025 at 11:06 PM
Are you a PhD/honours student in the Sydney area working with X-ray/Neutron techniques? Great (and very friendly) opportunity to present your work at the Australian X-ray Analytical Assoc's student day coming up on the 20th Nov www.eventbrite.com/e/axaa-nsw-s...
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).
And one more: there are 4 minerals that contains ' in their names:
D'Ansite, Lun'okite, O'Danielite and Ye'elimite.
#mineralnames #mineral
www.mindat.org/min-2949.html
D'Ansite, Lun'okite, O'Danielite and Ye'elimite.
#mineralnames #mineral
www.mindat.org/min-2949.html
November 3, 2025 at 5:54 PM
And one more: there are 4 minerals that contains ' in their names:
D'Ansite, Lun'okite, O'Danielite and Ye'elimite.
#mineralnames #mineral
www.mindat.org/min-2949.html
D'Ansite, Lun'okite, O'Danielite and Ye'elimite.
#mineralnames #mineral
www.mindat.org/min-2949.html
Ah, that could be a interesting nerdy question:
Can you name two* minerals named after software developers?
*because first is obvious.
#crystallography #mineralnames
Can you name two* minerals named after software developers?
*because first is obvious.
#crystallography #mineralnames
October 30, 2025 at 8:05 PM
Ah, that could be a interesting nerdy question:
Can you name two* minerals named after software developers?
*because first is obvious.
#crystallography #mineralnames
Can you name two* minerals named after software developers?
*because first is obvious.
#crystallography #mineralnames
A random #mineralnames fact - there are two (at least) minerals named after people with surname derived after a word "neighbor": Neighborite and Sosedkoite.
www.mindat.org/min-2871.html
www.mindat.org/min-3717.html
www.mindat.org/min-2871.html
www.mindat.org/min-3717.html
Neighborite
Related to the K analogue, parascandolaite.
www.mindat.org
October 20, 2025 at 7:36 PM
A random #mineralnames fact - there are two (at least) minerals named after people with surname derived after a word "neighbor": Neighborite and Sosedkoite.
www.mindat.org/min-2871.html
www.mindat.org/min-3717.html
www.mindat.org/min-2871.html
www.mindat.org/min-3717.html
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.
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
Yeah, this is a really high level of academic rickrolling.
Finally, someone has solved a real problem with AI! No more having to take a paper in the format for a journal that rejected you, and reformat it for a new journal. Well done!! formatmypaper.com
October 15, 2025 at 8:41 AM
Yeah, this is a really high level of academic rickrolling.
Reposted by Nikolay Tumanov
Happy to share this little tutorial review:
pubs.rsc.org/en/content/a...
#crystals #flexible #chemistry
pubs.rsc.org/en/content/a...
#crystals #flexible #chemistry
Identifying and Characterising Flexible Crystals
Mechanically flexible single crystals are emerging as a useful class of materials due to their unique combination of crystallinity and molecular-scale responses to applied mechanical stress. In this t...
pubs.rsc.org
October 14, 2025 at 12:30 AM
Happy to share this little tutorial review:
pubs.rsc.org/en/content/a...
#crystals #flexible #chemistry
pubs.rsc.org/en/content/a...
#crystals #flexible #chemistry
Reposted by Nikolay Tumanov
Occasional reminder that I have a collection of academic hoaxes.
Hoaxes offer a unique window into academic publishing!
doi.org/10.6084/m9.f...
Hoaxes offer a unique window into academic publishing!
doi.org/10.6084/m9.f...
Stinging the Predators: A collection of papers that should never have been published
This ebook collects academic papers and conference abstracts that were meant to be so terrible that nobody in their right mind would publish them. All were submitted to journals and conferences to exp...
doi.org
October 13, 2025 at 12:47 PM
Occasional reminder that I have a collection of academic hoaxes.
Hoaxes offer a unique window into academic publishing!
doi.org/10.6084/m9.f...
Hoaxes offer a unique window into academic publishing!
doi.org/10.6084/m9.f...
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