A pair of polymorphs of a persulfurated benzene are reported in @chemcomm.rsc.org.
Their distinct room-temperature phosphorescence colours arise from different molecular conformations in the crystal lattice.
๐CSD Entry OBICIQ01: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
A new class of chiral boronโembedded polycyclic aromatic hydrocarbons (PAHs) that exhibit dual circularly polarized luminescence (CPL) is reported in @angewandtechemie.bsky.social.
CSD Entry OYUFOH features a reversible P=OโB coordination bond.๐ dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
From Zapf and Rivard in @chemicalscience.rsc.org, the bulkiest N-heterocyclic carbene to date.
With a buried volume over 60%, this NHC stabilised (quasi)-monocoordinate Li and Ga(i).
๐ CSD Entry OWUBER (Ga(I) complex, anion not shown): dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
The isolation of five molecules featuring unsupported {N4}โขโ radical anion units has been reported in Nature Chemistry (๐ ccdc-info.com/3MSq1CZ).
CSD Entry EXODOO (cation not shown) is stable for weeks under anaerobic conditions.
๐ ccdc-info.com/4aNEARl
#FeaturedStructureFriday #crystallographyhy
The first isolation of neutral aluminium(i) trimers called cyclotrialumanes is reported by Bakewell et al. in @natcomms.nature.com.
CSD Entry OXATOA reveals a perfectly planar Alโ ring, supported by a bulky amidinate framework.
๐ dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
Reported in @science.org, lithium pentasilacyclopentadienyl complexes.
These silicon analogues of the cyclopentadienyl ligand have a non-planar 5-membered ring and further characterisation shows evidence of aromaticity.
๐ CSD Entry EXOMUD: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
Over 70 years since the discovery of ferrocene, the first neutral bis(cyclopentadienyl)metal complex of copper has been synthesised by scientists at @uofcalifornia.bsky.social as reported in @jacs.acspublications.org.
๐ CSD Entry UWULOR: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
A series of tetracopper disulfide clusters that mimic the mixed-valent sites found in enzymes like NโO reductase is reported by Tilley et al. @jacs.acspublications.org.
CSD Entry UXAVAU reveals a symmetrical arrangement of two bimetallic units.
๐ ccdc-info.com/46mDZmY
#FeaturedStructureFriday
Reported in @natchem.nature.com, the use of cubene and 1,7-quadricyclene in synthesis.
By exploiting hyperpyramidalized, strained bonds, the Garg group builds unique scaffolds like this one elucidated by MicroED electron diffraction.
CSD Entry EXEZEQ: ccdc-info.com/4c1Z1Lj
#FeaturedStructureFriday
Expanded boraporphyrinoids with redox switchable magnetic (anti)aromaticity and strong near-infrared absorption have been reported in @jacs.acspublications.org.
Antiaromatic CSD Entry IWANUT becomes aromatic upon twofold reduction.
๐ dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #ChemSky
A new nonalternant buckybowl embeds an azulene unit into a curved ฯ-system with a rare 5/7 ring topology. Reported in Chemistry - a European Journal.
CSD Entry ISEWUC reveals a shallow, dynamic bowl with unique packing and strong fullerene affinity.
๐ ccdc-info.com/4pI6aUs
#FeaturedStructureFriday
Reported in @chemicalscience.rsc.org ultrastiff crystals of mucic acid.
Inspired by previous reports of high density, this work reveals a high Youngโs modulus and hardness due to the extensive hydrogen bonding network.
๐ CSD Entry BIVTUV02: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
Happy New Year! Did you celebrate with fireworks? Our first #FeaturedStructureFriday of the year is potassium hydrogen terephthalate, an additive used in fireworks to create a whistling effect.
www.ccdc.cam.ac.uk/services/str....
Seasonโs Greetings from the CCDC! This week, weโre featuring the terpene alpha-pinene, one of the molecules responsible for the classic aroma of Christmas trees.
๐ CSD Entry ACIFEX: dx.doi.org/10.5517/cc5x...
#FeaturedStructureFriday #ChemSky
The synthesis of a semitubular molecule comprising two [8]circulene moieties has been reported in @jacs.acspublications.org.
CSD entry UTIJUG exhibits an excellent match to the substructure of Schwarzite P192.
๐ dx.doi.org/10.5517/ccdc....
#FeaturedStructureFriday #CompChemSky
A novel photocycloaddition enabled by a Ga(I)/Ga(III) redox cycle under visible light is reported in @jacs.acspublications.org.
CSD Entry XUXSOC demonstrates a seven-membered Ga-heterocycle where two isocyanide units are inserted into GaโC bonds.
๐ ccdc-info.com/44G1SVK
#FeaturedStructureFriday
The synthesis and characterisation of plumbynes (@jacs.acspublications.org).
This structure features multiple bonds between C and Pb, with several different resonance forms contributing to the overall configuration.
๐ CSD Entry OQOXIF: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
Isomerisation of [Ag(eta-5-B11H11)2]3โ to [Ag(eta-2-B11H11)2]3โ in the solid state upon cooling has been reported in @angewandtechemie.bsky.social.
The transformation shows signs of Ag(V)-Ag(I) redox processes.
๐ CSD Entry UROFAM: dx.doi.org/10.5517/ccdc....
#FeaturedStructureFriday
#CompChemSky
The first-ever crystalline, monomeric diboryl diazene is reported in @jacs.acspublications.org.
CSD Entry UNEWOD reveals a remarkably linear BโNโNโB skeleton and an exceptionally short N=N bond, signatures of a cumulenic BN=N=B framework.
๐ dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
From the UIUC, three coordinate mononuclear palladium(i) halide complexes (@jacs.acspublications.org).
Rarely isolated, these structures are proposed as critical intermediates in photochemical Pd chemistry.
๐ CSD Entry EQOLOP: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
The first crystalline Bi(II) radical anion has been reported by @joshabbenseth.bsky.social and co-workers in Angewandte Chemie.
Spectroscopic analysis revealed localization of the unpaired electron at the bismuth centre.
๐ CSD Entry OPESOV: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
A novel carborane-based 2D #MOF that exhibits exceptional CโHโ/COโ separation performance is reported in @pubs.acs.org.
CSD Entry MUTCIR features a unique wavy sql layer with pores precisely tuned for CโHโ adsorption.
๐ dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
From the University of Osaka, a carbon nanoring featuring alternating anthracene and phenylene groups (@jacs.acspublications.org).
Due to ring strain, the anthracene units are bent and the molecule has a quinoidal structure.
๐ CSD Entry ENIHES: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
The isolation of a lithium bis(o-carboran-1-yl)cuprate complex that enables the โdump-and-stirโ synthesis of carborane-substituted arenes from readily available aryl bromides and chlorides has been reported in JACS.
๐ CSD Entry EKOYEM: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday
Sรกnchez et al. report in @angewandtechemie.bsky.social the creation of nanogloves โ macrocycles with a deep-cavity that snugly bind fullerenes like a baseball in a glove.โพ
CSD Entry EJITAW shows the C60 is stabilised by strong CโHยทยทยทฯ interactions.
๐ ccdc-info.com/4gQqiRf
#FeaturedStructureFriday
From @maxdietz.bsky.social and Simon Aldridgeโs group, an example of a main-group tin-carbonyl complex (@science.org).
Above 0 degrees Celsius, this CO complex rearranges to form a tin carbene complex.
๐ CSD Entry ELAMIR: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
The first intermolecular lithium eta-2-alkene complexes have been reported in @jacs.acspublications.org.
The alkene ligands are displaced in cyclohexane to give the first intermolecular Li-alkane complex.
๐ CSD entry: EKOWAG dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
Sarpong et al. report in @pnas.org the synthesis of "carbamorphine", with a single-atom change (OโCHโ in the E-ring).
CSD Entry UKEGAW (๐ dx.doi.org/10.5517/ccdc...
) retains antinociception but lacks respiratory depression and addictive behaviours in mice.
#FeaturedStructureFriday #CompChemSky
In @jacs.acspublications.org, an inverted singlet-triplet chiral dye.
Based on a heptazine core, this is the first example of single-molecule circularly polarized luminescence from a chiral dye.
๐ CSD Entry OJEWAF: dx.doi.org/10.5517/ccdc...
#FeaturedStructureFriday #CompChemSky
A double-sandwich bimetallic thorium hydride complex has been reported in @chemicalscience.rsc.org.
The complex can be regarded as a Th(II) hydride synthon and shows unique reactivity towards various substrates.
๐ CSD Entry UKIMEK: dx.doi.org/10.5517/ccdc....
#FeaturedStructureFriday #CompChemSky
