Hritwik Haldar
@H_H_Hydrogen
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Graduate Student @MIT, Alumni @IISERPune, A Student who Loves to Explore The Deep Sea of Chemistry!
Joined January 2021
Part of my MS thesis work is just out in @J_A_C_S , this achievement would not have been possible without the guidance of my UG mentor @Moumita_CHEM , the support from my undergraduate institution @IISERPune and the incredible collaboration of my coauthors. Do check out!.
Happy to share our work published in @J_A_C_S Thanks to all co-authors @H_H_Hydrogen @satyabrata_1202 @kbeuthert @DehnenStefanie @ChemYildiz Chris, Haakon. Hritwik’s efforts, Satyabrata’s perseverance are the key players. Incredible collaborations indeed.
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A new start! Standing in front of the iconic Great Dome at MIT—still can't believe I'm here! Loving the chilly Cambridge weather and soaking in every moment. @MIT
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1/3: Thrilled to share that I've been accepted into MIT's Chemistry graduate program! 🎉 Huge thanks to my supervisor @Moumita_CHEM for her guidance and support throughout this journey. Grateful to my institution @IISERPune for providing the resources and opportunities
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1/3: I’m thrilled to announce that I graduated from @IISERPune today with Distinction (9.1 CGPA) and received the Best MS Thesis Award in Chemistry, 2024! No longer just a 12th pass. I’m excited to start my next academic chapter as a PhD student at @MIT
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Thrilled to announce that I successfully defended my Masters Thesis today! 🎉 Dobby is a free elf now 😁. 5 years of growth, learning, and unforgettable experiences all culminate here. Grateful for the journey and the invaluable life lessons learned along the way.
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1/2: Overjoyed to share that my first-ever paper, has been accepted in @ChemPlusChem! As an undergraduate student, I am honored to be the first author of this publication. Grateful for the guidance and support from my mentor @Moumita_CHEM
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I am grateful to receive the Academic Excellence award for the 2022-23 academic year at the 14th IISER Foundation Day from Chief Guest Lt. Gen. Madhuri Kanitkar (Retd) and Dr. Sunil Bhagwat, Director of @IISERPune
The 14th #FoundationDay of #IISERPune was celebrated today with address by Lt. Gen. Madhuri Kanitkar (Retd) (Vice-Chancellor, Maharashtra University of Health Sciences, Nashik) and awards of excellence to students, staff and faculty members!
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Excellent talk by Prof. Eric Rivard @RivardGroupUofA at @IISERPune department of chemistry. We were amazed to see how main group molecules can be used in surface deposition and nano particles synthesis.
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Congratulations Ma'am.
#Congrats to Dr. Moumita Majumdar on receiving #Humboldt Research #Fellowship for experienced researchers from Humboldt Foundation @AvHStiftung .
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Pleasure to have you @IISERPune. It was a great talk indeed.
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A few days back, I completed my 50th Reaction from the lab. Obviously a milestone for an undergraduate student like me. This is the XRD pattern of the crystal from the 50th reaction! I hope this will not break my heart.
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It was so nice to interact and discuss our chemistry with you. Thank you for your valuable time! It was a pleasure to have you among us.@RJGilliard @Moumita_CHEM.
On my 3rd stop in India I am honored to be a guest at IISER Pune where I was treated to excellent presentations on group 13/14 chemistry by Prof. @Moumita_CHEM’s team! Really tough synthetic work!
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Unbelievable!! Mark my words bismuth is going to rule inorganic chemistry soon!!.
Pleased to share an all-metal σ-aromatic [Bi4]4+ ring trapped by two #C4P-InBr. Now @NatureChemistry Great work by @raviydv01 @avijitmaitichem and scXRD support by @M_J_Schorpp
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Woww! Antimony based enzymes! Nice idea of using Sb based Lewis acid to mimic the role of Zn2+. So many biological applications of heavier Pnictogen Lewis acids are coming up. First, Prof. Gabbaï's Group 15 based ion channels and now this!.
In our new paper in Angew. Chem. on pnictogen-bonding enzymes, we introduce artificial enzymes that use a non-covalent interaction biological enzymes do not use, the long-awaited counterpart to anion-π enzymes, reported 2016.
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2/3: that shaped my academic path. And immense gratitude to my recommendation writers - My supervisor @KumarVanka1 @LisaRoyChem @NprlLab_iitgn @ShabanaKhan01 for believing in me. And heartfelt appreciation to my friends, well-wishers, and family for their endless encouragement.
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2/3: Here are some moments from receiving my degree and award. Immense gratitude to my parents for their constant support.
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The Antimony Redox catalysis!!! Sb(I)/Sb(III) cycle.
Antimony Redox Catalysis: Hydroboration of Disulfides through Unique Sb(I)/Sb(III) Redox Cycling | Journal of the American Chemical Society #Antimony #Redox #Catalysis #Hydroboration #Disulfide #Redox #Cycling
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3/3: These people made the IISER life Amazing. @ShayandeepBhau1 @SUMANKU87469499 @Ankan_Chem @Prit_P00 Soumya and Ranojoy
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3/3: This is undeniably one of the best achievements of my life so far. Super excited for the next chapter!.
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Why do most of the UK universities (even some high ranked universities) lack funding for international PhD students? #Education #Scholarships #InternationalStudents #AcademicTwitter.
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Why do we give diamonds in engagement rings to symbolize eternal love? I mean, sure, diamonds are pretty, but isn't graphite the most stable form of carbon at room temperature? Just saying, a nice chunk of graphite might be more fitting for "eternity." But hey, thank me later!😅.
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Looks like things will finally get better at IISER Pune hostels!.
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My first encounter with octagonal crystal. They are beautiful🥺 (Picture Taken in Polarized Light Microscope).#chemtwitter #Chemistry #maingroupchemistry #crystals #inorganic
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Wow! A milestone indeed!.
[Great News🎉]. Thrilled to announce that our latest paper "Direct evidence for a carbon–carbon one-electron σ-bond" is now out in @nature !. Huge congrats to Takuya @Tky_SMJR , Soki @SokiKAWAGUCHI , and all involved🎉🎊.
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Thank you Virat Kohli🐐 ❤️ #ViratKohli𓃵 .Happy Retirement to King Kohli on retiring from T201 cricket! What a perfect ending to the G.O.A.T. career: being Player of the Match in the Final and winning the World Cup for Country. ❤️😊.
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1/2: I’m happy to see the paper published! I had the privilege of working under Dr. Vanka’s supervision @KumarVanka1 during the COVID period, and it was an incredible experience. Special thanks to my mentor, @SRDChem, for the guidance.
Hot of the press! #Origin_of_Life. Wonderful collaboration with Prof. Hotha @IISERPune .Thanks @IndiaDST for funding. @ChemCommun @ChemResSocIndia .@csir_ncl @AcSIR_India. Great team effort by 5 equal first authors, assisted by our summer intern Hritwik.
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Early wake up for crystal mounting will not go in vain when your crystals are like this 🤩.#maingroupchemistry #chemtwitter #Crystal #inorganic
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@PrakashDuari1 @FU_Berlin Once he came to Belur Math(2018). We guided him to visit belur math. We discussed about Swamiji and also different fields of chemistry. I regret that I didn't know he is the god of the main group chemistry which I am currently doing right now
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Yes!!!.
Just started my very own YouTube channel!!. If you wanna see how I grow my pet crystals, check it out :).
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Super Cool!!.
I am happy to share that our paper on the first heterobimetallic dimetallocene is finally published in @NatureChemistry!.Thank you to everyone who contributed, most importantly Inga Bischoff, who did the experimental work, as well as @ICCGroup2 @Tetidanes!.
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#RGKAR.1/n: Do you want justice only for this case? Or do you want to stop crime against women in general? Crime against women will not stop by hanging one rapist or only giving justice to a single case. Giving the death penalty to a rapist alone can't stop crime against women.
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Thank you @ChemPlusChem.
Coordination Chemistry of the Antimony(III) and Bismuth(III) Cations using Bis(alpha-iminopyridine) as Ligand (Moumita Majumdar and co-workers) @Moumita_CHEM
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Why is this kind of fire missing in our generation? Happy Birthday to a true hero! Netaji!.
Nearly a century ago, when a prominent Calcutta college debarred its students from organizing Saraswati Puja, the beleaguered students found support from #SubhashChandraBose. It led to a clash between two of Bengal’s biggest icons. A thread (1/12)
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Another Beautiful Phosphine Ligand!It is an example of very rare highly sigma donating aryl phosphine ligands (only one example known previously - TTMPP).The sigma donating property is even better than P(tBu)3 according to TEP but has less sterics than alkyl phosphines(ConeAngle).
Strongly Donating Arylphosphine Ligands: Synthesis and properties of 1,2,5-trimethylpyrrolyl phosphines reported
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Best 🤣.
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2/2: and co-authors throughout this incredible research journey. Excited for what lies ahead in the world of chemistry! Deeply grateful to the @IISERPune and Department of chemistry for providing remarkable research opportunities to undergraduates.
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Origin of the Indians: two interesting threads.
Fun fact: the map of lactose intolerance in India tracks with this migration into the Indian subcontinent and subsequent genetic intermixing and migration patterns within India
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Then Si, Now Ge!! A new coupling reaction!.
Happy to share: "Orthogonal Olefination with Organogermanes". Just out @angew_chem. Congratulations Amit and Markus.
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Interesting comparison. .
Just thought of doing a random comparison, of a top rated Chinese University (Tsinghua) and top rated Indian University (IISc). I am not picking on any institution, but trying to make a comparison. Generally, the top performing institutions are the best funded ones. At least
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First reported Zn(II) colored complex! Zn---Zn (Zinophilic interaction maybe?) comes into picture for lowering the LUMO energy. More you can find here -
Looks really nice (besides the fact that I can't read it). ぱっと見大学院の入試問題に良さそう。.
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No d, No problem!! This work shows how In-situ generated Mg(I) amide can activate dinitrogen! Indeed a cool work!.
No accessible d-orbitals? No problem. Rahul's work on the 1st activation of N2 in a Mg complex (via a Mg(I) radical) is out as a preprint. A super reactive compound that acts as a masked Mg(I) diradical, reducing CO, H2 + C2H4 in the solid state!. #ozchem
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What a cool molecule!.
Excited to share our latest collaboration led by Kong, hot off the press in @J_A_C_S, where we explore a BN analog of butadiyne.
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2/2: Also, heartfelt gratitude to @SRDChem and @VipinRajK3 for teaching me DFT from scratch. It was truly an amazing experience to contribute to this project!.
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@RJGilliard @gilliardgroup @Chemie_iisertvm @Moumita_CHEM @IISERPune Excited for your visit in IISER Pune.
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Nice Work!!.
Our first work from Bonn is finally out!!! Let's light-up heavy dipnictenes! Congrats Daniel and all the co-authors!🧪 Great collaboration with @tonifrontera3
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@MdJabed46836196 @ShabanaKhan01 @IISERPune Nice Work! One small question. Did you try the reactivity of the Ge(4) with AlCl3?.
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Do check out our article!.
Urgent research from Srinivas Hotha, @KumarVanka1 and co. 'Unravelling the prebiotic origins of the simplest α-ketoacids in cometary ices: a computational investigation'. From our HOT Article and CRSI Medal Winners collections. @CSIR_NCL, @AcSIR_india.
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So cool.
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Cool Chemistry!.
Now online:. Article by Chenting Yan, Kota Koshino, Lizhao Zhu & Rei Kinjo @NTUsg @NtuChemistry. Aluminium(I) anion-supported zero-valent palladium complexes. ($).
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Beautiful!!!.
This is not glass. It is a single crystal of Mohr's salt that I grew at home. The crystal took 1 week to grow. Here's how I did it:
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Very cool work! This ligand has similar sigma donating ability but still it has less steric than usual highly Sigma donating phosphine ligands. It gives access to less sterically hindered electron rich Pd substrates for catalysis!.
We’re thrilled to share this story about tris(bicyclo[1.1.1]pentyl)phosphine. Griffin Perry developed a scalable route to this phosphine and discovered impressive activity in Pd-catalyzed sp3-electrophile cross-coupling.
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Truly a milestone in Inorganic Chemistry!!.
Our nitrene paper was accepted for publication by Science and has gone online as First Release. What a tremendous milestone for the Beckmann group.
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Cool Molecule.
How stable is the cyanoketene anion [NC3O]-?🤔.Is it a space molecule or can it be isolated?🤔.What does its structure look like?🤔.Can it be used as a building block for complex molecules?🤔. Check out our preprint on ChemRxiv👇.
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Very Impressive Work! The research work demonstrates the effective utilization of a nucleophilic Mg-Mg compound, along with a Lewis base, as a defluorinating agent for PTFE polymer waste. Additionally, the resulting compound exhibits remarkable potential as a fluorinating agent,.
Danny Sheldon's and @josephmparr's work on the defluorination of PTFE is now published in @J_A_C_S. Here is the link:
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Cool!.
Geometrically Constrained Organoboron Species as Lewis Superacids and Organic Superbases (@angew_chem):
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@PaharSanjukta @ChemEurJ @vishal07996 @sakya_sen @VipinRajK3 @KumarVanka1 @csir_ncl @CSIR_IND @AcSIR_India Really Nice Work!! Congratulations🥳.
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Rock Rocks!! Meteorite (catalyst) mediated reverse Krebs Cycle reaction!.
Hydrogen gas powers the metabolisms of many modern organisms and likely drove the metabolism of the last universal common ancestor to all life. Could H2 have driven prebiotic metabolism as well? @SophiaRauscher tried to find out, now in @angew_chem 1/3
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@LLL_lab_SUSTech @ChemJChu @J_A_C_S Cool!! After Bismuth, Sb is also showing amazing reactivities. So many things to explore in Sb chemistry.
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@sakya_sen @ChemCommun @BisaiMilan @V_S_Ajithkumar @VipinRajK3 @serbonline @csir_ncl Congratulations to the team.
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My first ever Wordle.Wordle 213 5/6. ⬛⬛⬛🟨⬛.🟨⬛⬛⬛🟨.⬛🟩🟩⬛⬛.🟩🟩🟩⬛⬛.🟩🟩🟩🟩🟩.
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@Nils_Not_ @CornellaLab Congratulations! After the literature report on isolating monomeric Sb(V) monoxide, I never thought that isolating monomeric Bi(V) monoxide would be this much challenging. Great strategy!.
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Cool Molecule! "First configurationally stable oxonium ion" which is chiral and sole stereogenic is the oxygen centre. The lp in oxonium ion conformationally locked .DOI: 10.1038/s41586-023-05719-z.
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@AngshumanNag4 @AJINKYASHINGOT2 @Ms_2D_exciton @ParikshitRajp19 Congratulations @AJINKYASHINGOT2 and team 🎉.
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Beautiful Structure!.
Meet PONNOPONNONi2 😍.@AndieDelaney's beautiful planar dinickel macrocycle work is now out in @ChemEurJ
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@sakya_sen @Orgmet_ACS @gargikundu6 @amrutha_pr3 @ChemResSocIndia @serbonline @csir_ncl Congratulations sir for your century on publications.
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Wow!!.
Chemistry history in the making: Marvin Janssen isolated the first room temperature stable nitrene featuring a triplet ground state: X-ray structure, paramagnetic, EPR-active, spin-delocalisation across phenyl ring. On ChemRxiv -
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@raviydv01 @NatureChemistry @avijitmaitichem @GrebGroup @M_J_Schorpp @Chemie_iisertvm Beautiful compound. Congratulations.
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I am guessing C-N coupling or MOFs.
The announcement of the 2024 #NobelPrize in Chemistry is coming - save the date. Join the excitement next week - hear the news first @NobelPrize and at Watch live:
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@MdJabed46836196 @ShabanaKhan01 @IISERPune @RoySocChem @Orgmet_ACS Nice work! I am just curious about if this catalyst is actually more efficient or faster than previously reported or Sharpless's CuAAC? If yes, how germylene or silylene is helping to get more efficiency?.
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@LabLichtenberg @angew_chem @jordipoater Nice Work, Congratulations!! It displays how diverse Bismuth can act as a ligand.
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@KRITIALAM3 True. Ajker dine emon cinema banano kothin hoto jeta system ke challange kore and Mythological stories ke as a part of comic play hisebe use kora. Truly a masterpiece and Cult Classic too.
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