John Seed

Uranium-stibinidiide, -stibinidene, and -stibido multiple bonds and uranium-nitride formation from multimetallic diuranium-distibene-mediated dinitrogen cleavage Nature Communications - Although uranium-nitrogen multiple bonding is well developed, there are far fewer uranium-phosphorus and -arsenic multiple bonds, and none for antimony, even in...

Great collaboration between the Universities of Manchester and Marburg to bring uranium and antimony together. @john-seed.bsky.social‬, ‪@unimarburg.bsky.social‬,
Special congratulations to Rebecca, Kevin and Nick for their synthetic work.
rdcu.be/eBcJt

Huge (!) congratulations to Becky and Jingzhen for some tremendous synthetic chemistry, and for the former's 1st first author publication, and to all authors who helped contribute to this work - especially @haenisch-group.bsky.social at @unimarburg.bsky.social. Please read and enjoy!

Uranium-stibinidiide, -stibinidene, and -stibido multiple bonds and uranium-nitride formation from multimetallic diuranium-distibene-mediated dinitrogen cleavage - Nature Communications Although uranium-nitrogen multiple bonding is well developed, there are far fewer uranium-phosphorus and -arsenic multiple bonds, and none for antimony, even in spectroscopic scenarios. Here, the auth...

There are no examples of uranium-antimony multiple bonds, even under spectroscopic scenarios. Until now. Check out our work on U-Sb bonds spanning single, double, and pseudo-triple bonding interactions. Out now in @natcomms.nature.com ! www.nature.com/articles/s41...

Nobelium becomes heaviest element with identified compounds Complexes containing hydroxide, water and dinitrogen ligands detected as researchers probe chemistry on the edge of the actinide series

Complexes containing nobelium were created as part of new research into the chemistry of the actinide series.

Thanks a lot for the support Dave! 😄

Thank you!

I think I’ll be using that analogy from now on. Thanks a lot - glad you like it!

Delighted to have received the @manchester.ac.uk Chemistry department Outstanding Achievement Award for our work on exalted diamagnetism in trithorium superatoms. Hugely grateful to the team of people who contributed to this work and all those who supported yesterday during the award symposium 😃

Magnetic hysteresis up to 73 K in a dysprosium cyclopentadienyl-amide single-molecule magnet Single-molecule magnets (SMMs) based on dysprosocenium cations, [Dy(CpR)2]+ (CpR = substituted cyclopentadienyl), have set record effective energy barriers to magnetic reversal (Ueff) and temperatures...

Jek leads our latest preprint in @chemrxiv.bsky.social with the @nfchilton.bsky.social group on a mixed axial dysprosium amide-cyclopentadienyl single-molecule magnet (SMMs). We find similar high-temperature soft hysteretic properties to dysprosium bis(amide) SMMs.
chemrxiv.org/engage/chemr...

Huge congratulations Dave, Nick, Gemma and team! 🎉🥳

Soft magnetic hysteresis in a dysprosium amide–alkene complex up to 100 kelvin - Nature A dysprosium amide–alkene complex shows soft magnetic hysteresis loops up to 100 kelvin, arising from the high charge density of the amide ligands and the structural role of the pendant alkene.

Delighted to announce the publication of our work in @nature.com, in collaboration with @nfchilton.bsky.social's group, on a dysprosium compound with magnetic memory at 100 Kelvin. Congrats to all authors inc. @gemmagransbury.bsky.social, @jeffjefftyjeff.bsky.social
www.nature.com/articles/s41...

Breaking Bonds at Tin(II): Reductive or Oxidative Addition? Here, the addition of H–H, Be–Be, B–B, and B–H bonds to SnII is studied by experimental and theoretical means. We report the first examples of B–B and Be–Be bond additions to a main group metal centr...

Breaking bonds at tin(II)! We've had a look at the spectrum of bond addition reactions, from reductive (Be-Be) to oxidative (Cl-Cl), and everything in between (B-B, B-H, H-H)
@angewandtechemie.bsky.social @maxdietz.bsky.social @amelia-swarbrook.bsky.social
doi.org/10.1002/anie...

Good luck with everything Gemma!

Trithorium superatom confounds with its unexpected and ‘mind-blowing’ diamagnetism Nanocluster behaves like a 'super alkali-metal'

The first superatoms made using actinides ever created are adding a new dimension to one of the strangest chemical phenomena.
#ChemSky

Thanks a lot Lisa. Glad you like it!

Thanks so much! 😃

Thanks Andrew. Absolutely! 🤝🏻

This has been a mountain of work from all authors, and impossible without the contributions of the whole team. Eternally grateful to have such talented, knowledgeable, and collaborative colleagues here in Manchester. Please read and enjoy! @uniofmanchester.bsky.social

However, in external applied magnetic fields, these S = 1/2 clusters are diamagnetic (!) as the valence delocalisation enables exalted diamagnetism, which overwhelms the intrinsic paramagnetic character, experimentally evidencing actinide open-shell superatomic character.

Solution spectroscopy highlights Robin–Day Class III 6d-orbital valence delocalisation, and variable temperature EPR confirms axial-type 6d¹ character, with the g value ordering suggesting that this is delocalised within the Th₃ core, not localised on a thorium ion.

Valence-delocalized trithorium nanocluster superatoms with open-shell exalted diamagnetism - Nature Chemistry Superatoms are metal clusters that collectively behave like an atom, but they usually require metal–metal bonding and thus they are based on main group or transition metals. Now it has been shown that...

Years in the making – 3-centre-1-electron trithorium metal-metal bonding. Out now in @natchem.nature.com !

www.nature.com/articles/s41...

Super cool work! Congrats all!

Praseodymium in the formal +5 oxidation state Nature Chemistry - The most common oxidation state for lanthanide elements is +3, and, beyond cerium, examples of these elements exhibiting higher oxidation states remain scarce. Now, a molecular...

We are excited to share praseodymium 5+! Finally in print!
A new PR for Pr!

rdcu.be/egHf6

Berkelium - wow. Really impressive chemistry!

Fully funded 3.5-year PhD studentship! Come and work on alkaline earth metal organometallic chemistry and metal-metal bonding @imperialcollegeldn.bsky.social! More details via the link: www.imperial.ac.uk/chemistry/po...

Uranium(III) and Uranium(IV) meta-Terphenylthiolate Complexes We report the synthesis and characterization of crystalline m-terphenylthiolate uranium complexes supported by the bulky ligand system, SAriPr6 (SAriPr6 = {SC6H3-2,6-(Tripp)2}; Tripp = 2,4,6-iPr-C6H2)...

Happy to share Ben’s first full research article from his time in the group: pubs.acs.org/doi/10.1021/...

Challenging synthesis and some interesting new main group architectures making an appearance for the first time on an f-element.

#Chemistry #Actinides #f-elements