Roman A. V. (@RomanValiulin) header
Roman A. V. (@RomanValiulin) profile picture

Roman A. V.

@RomanValiulin

Organic and Medicinal Chemist. Scientist. Passionate Teacher. Amateur Artist. Interested in mechanisms, NMR, and ChemInfoGraphics. Views are my own.

 San Diego, CA
cheminfographic.wordpress.com
Joined September 2015
  • Tweets1.7K
  • Following3.7K
  • Followers6.9K
488Media
Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)Photo by Roman A. V. (@RomanValiulin)
Roman A. V. retweeted
Roman A. V. (@RomanValiulin) profile picture
Roman A. V.@RomanValiulinMay 13
Non-Covalent Molecular Interactions Summary ⛓️💞🫶#NeverStopLearningMedChem For higher resolution image and references please visit ➡️ cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
42
1
233
13,323
Good summary! linkedin.com/posts/talha-mas…
#nmr #spectroscopy #organic #chemistry #synthesis #research | Talha Mashhood

#nmr #spectroscopy #organic #chemistry #synthesis #research | Talha Mashhood

Understanding Coupling Constants (J) in NMR Spectroscopy 🔬 Coupling constant (J-coupling) is one of the most important parameters in NMR spectroscopy for structural elucidation of organic compounds....

linkedin.com
7
23
2,409
Roman A. V. retweeted
Roman A. V. (@RomanValiulin) profile picture
Roman A. V.@RomanValiulinApr 24
Thinking about 3rd Ed. QUESTION: which new mechanism is worth adding??? Please share your thoughts! 🙏☺️🙋‍♂️100 Must-Know Mechanisms 2.0!!!➡️ amazon.com/Organic-Chemistry…
Image from Roman A. V. (@RomanValiulin)
Image from Roman A. V. (@RomanValiulin)
6
13
123
7,023
Fundamental Chemistry Mechanisms ⚙️🦾#NeverStopLearningMedChem For higher resolution image and references please visit ➡️ cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
11
35
2,350
Non-Covalent Molecular Interactions Summary ⛓️💞🫶#NeverStopLearningMedChem For higher resolution image and references please visit ➡️ cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
42
1
233
13,323
It’s #NMRweekend time! 🧲⁉️ Can you identify the correct structure based on the spectrum? Drop your answer in the comments ✍️ or take part in the poll below 👇. I’ll post the full explanation in a few days. 😉 #nmr #nmrchat #chemistry #quiz
Image from nmr_spectroscopy / Organic Chemistry ⌬🇺🇦 (@NMRspectroscopy)
5
7
3
47
8,427
The obligatory summary of a summary and a table of E1 vs E2 vs Sn1 vs Sn2. Hopefully, this is of use to some, but if I'm brutally honest, it was just a quick stop gap while I work on more fun #ChemEd #Chemistry summaries (currently writing ones on cycloadditions & rearrangements)
The classic table of E1 vs E2 vs SN1 vs SN2. Hopefully it is useful in giving UG students an idea of what mechanism might be in operative and answering some of those annoying exam questions (reality sucks, and it is highly likely that multiple mechanisms will be operating at the same time!).

ALT The classic table of E1 vs E2 vs SN1 vs SN2. Hopefully it is useful in giving UG students an idea of what mechanism might be in operative and answering some of those annoying exam questions (reality sucks, and it is highly likely that multiple mechanisms will be operating at the same time!).

1
7
35
1,959
Chemistry is visual art #NeverStopLearningChemistry more➡️cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
1
51
2
197
21,372
My favorite 👌 Multiplet Summary ⚛️ and ➡️ “NMR Multiplet Interpretation: an InfoGraphic Wall-Through (2nd Ed.)” 📷📚amazon.com/NMR-Multiplet-Int…
Image from Roman A. V. (@RomanValiulin)
11
2
59
5,994
Thinking about 3rd Ed. QUESTION: which new mechanism is worth adding??? Please share your thoughts! 🙏☺️🙋‍♂️100 Must-Know Mechanisms 2.0!!!➡️ amazon.com/Organic-Chemistry…
Image from Roman A. V. (@RomanValiulin)
Image from Roman A. V. (@RomanValiulin)
6
13
123
7,023
Pseudo-Asymmetric - Stereogenic - Chirality Center: Final Example E ⚗️: #NeverStopLearningChemistry ⚗️original post https:// ➡️cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
2
37
3,465
Pseudo-Asymmetric - Stereogenic - Chirality Center: Example D ⚗️: #NeverStopLearningChemistry ⚗️ original post ➡️ cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
8
89
6,383
Pseudo-Asymmetric - Stereogenic - Chirality Center: Example C ⚗️: #NeverStopLearningChemistry ⚗️ original post ➡️cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
18
124
8,164
Replying to @gdb
NMR elucidation with o3 + RDKit is pretty cool.
Image from Nicholas Runcie (@NicholasRuncie)
2
8
1
28
3,500
Pseudo-Asymmetric - Stereogenic - Chirality Center: Example B ⚗️: #NeverStopLearningChemistry 📷original imagine https:// ➡️cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
1
21
1
104
8,552
Inversion (Symmetry) Center: Example A - is it a MESO form?⚗️: #NeverStopLearningChemistry original post ➡️cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
5
63
5,008
My favorite 👌 Multiplet Summary ⚛️ and ➡️ “NMR Multiplet Interpretation: an InfoGraphic Wall-Through (2nd Ed.)” 📷📚amazon.com/NMR-Multiplet-Int…
Image from Roman A. V. (@RomanValiulin)
11
2
59
5,994
13C NMR [1H] decoupled of Deuterated and Fluorinated compounds: 2n+1 vs n+1 rule. For higher resolution and other #NMRChemInfo ➡️ cheminfographic.wordpress.co…
Image from Roman A. V. (@RomanValiulin)
12
79
6,153

No more items