Steven Roldan (スティーヴン)

Extrovert scientist. Ex-OrgChem, PhD in CompChem | Capsicum 🌶️ addict | 🔑⛓️ & 🥃 collector | Armed with a keyboard and a smile

[Science Magazine @ScienceMagazine]

A new low-energy chemical recycling method using boron and gallium can convert common silicone waste into useful chlorosilanes with high efficiency and yield. The method offers a promising new chemical pathway toward circularity in silicone materials.

Learn more in Science: https://t.co/iyBK4aPAJs

[Steven Roldan (スティーヴン) @SevenRoldan]

One of the masterminds behind this great work: @J_Raynaud_PhD .

[Steven Roldan (スティーヴン) @SevenRoldan]

Really happy to see our latest work out @ScienceMagazine !
Recycling silicone waste with the power of chemistry.✨✨✨

https://t.co/3MFsvbLCSN

[Alex Zhurakovskyi 🇺🇦 @zhorakovsky]

Check this awesomeness from @sam_chem : https://t.co/OvX83JcAqf, a wordle for organic chemists. Each day you have six tries to solve the daily chemistry problem, from named reactions and drug syntheses to neat totsyns.

[Steven Roldan (スティーヴン) @SevenRoldan]

@QP_Chem @GroupItemm @esrfsynchrotron @ESRF_FR @RioJordan18 Erratum: Grammar mistakes were made. That's what happens when you tweet without enough sleep. 😂

[Steven Roldan (スティーヴン) @SevenRoldan]

@QP_Chem @GroupItemm @esrfsynchrotron @ESRF_FR @RioJordan18 It has been a great experience.
Really amazing facilities inside and also what an amazing location. The spring time also makes the the free time way more nicer. 😊

[Quentin Pessemesse ⌬ @QP_Chem]

After a lot of tuning and a bunch of adventures, @GroupItemm finally has its first bunch of X-ray absorption data 💫
The staff at BM16 (FAME-UHD) @esrfsynchrotron @ESRF_FR was amazing in solving our set up issues and accommodating our whimsical samples !#Realtimechem #Chemistry

[IQCC UdG @IQCCUdG]

2 PhD and 1 Postdoc positions in Computational Biochemistry and Biocatalysis are open in the group of Marc Garcia-Borràs (@MarcGBQ) and Ferran Feixas (@ferranfeixas) at the @IQCCUdG @univgirona #compchem

[Lucas de Azevedo Santos @LucasAzdS]

A highlight about his work in @Chem2W!

https://t.co/W3zGwIq61d

[David K Smith @professor_dave]

Our latest research paper is a collaboration with my good friend Peter O'Brien. He works with highly reactive organolithiums - we thought gels might make them safer & simpler to handle. They did! Even if we dropped one in water, the reaction still worked.
https://t.co/1u289naSGR

[Agustí Lledó @LledoAgus]

We're offering a 1 year post-doc position to work under my supervision on the Supra CarVoltaic project (with @ribas_xavi as co-PI). Exploiting supramolecular chemistry to obtain next-gen photovoltaic materials (NGs, fullerenes). Inquiries agusti.lledo at udg dot edu

[Steven Roldan (スティーヴン) @SevenRoldan]

@CYL_Lab Are you still isolating/resolving issues for CYLview20?
In my case, I am not able to visualize any structures in the GUI. However, it shows information in the data tab & analyze tab when opening an gaussian ouput.

[Steven Roldan (スティーヴン) @SevenRoldan]

Time to start new challenges >:)

[Oriol Planas @uri_planas]

Fully-funded PhD position 👩‍🔬🧑‍🔬 @Chemistry_QMUL to work with me in London🇬🇧 and explore synergistic effects between low-valent MG organometallics and light towards catalysis!

Details here Deadline: 31st January 2023

https://t.co/NMW4NDGcif

[Steven Roldan (スティーヴン) @SevenRoldan]

@janhjensen @kjelljorner My issue is with the conformers generated by CREST ( Since the SDF input doesn't seem to work well and the SDF output also have charge assignment issues). In principle the connection shouldn't change.

[Steven Roldan (スティーヴン) @SevenRoldan]

It seems that converting XYZ files to SDF files (when the molecule is charged) do not seem to be a trivial thing, does anybody know a solution to this? So the SDF gets the right charge value without changing the original bond orders. #compchem #cheminformatics @kjelljorner

[Steven Roldan (スティーヴン) @SevenRoldan]

@kjelljorner @janhjensen I did try obabel. However, it creates an SDF with neutral charge even when the imput was not.
I will try xyz2sdf to see if it works. Thanks!

[Indignant PhD @IndignantPhD]

I don't understand the "postdoc" positions in the industry. What are they? Underpaid scientists? They seem to be a bad influence from academia.
@AcademicChatter #AcademicTwitter

[Cina Foroutan-Nejad 🇮🇷 🇵🇱 @CForoutanNejad]

Iran matters
But why? Check out this short video.

#OpIran
#IranProtests2022

[Steven Roldan (スティーヴン) @SevenRoldan]

@alic1a_casitas @JoanSP Felicidades!!