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1. Methyl β-lactoside [methyl β- D -galactopyranosyl-(1→4)-β- D -glucopyranoside] monohydrate: a solvomorphism study

   https://doi.org/10.1107/S2053229621009499  

   Lin, Jieye; Oliver, Allen G.; Serianni, Anthony S. (October 2021, Acta Crystallographica Section C Structural Chemistry)

   Methyl β-lactoside [methyl β-D-galactopyranosyl-(1→4)-β-D-glucopyranoside] monohydrate, C 13 H 24 O 11 ·H 2 O, (I), was obtained via spontaneous transformation of methyl β-lactoside methanol solvate, (II), during air-drying. Cremer–Pople puckering parameters indicate that the β-D-Gal p (β-D-galactopyranosyl) and β-D-Glc p (β-D-glucopyranosyl) rings in (I) adopt slightly distorted 4 C 1 chair conformations, with the former distorted towards a boat form ( B C1,C4 ) and the latter towards a twist-boat form ( O5 S C2 ). Puckering parameters for (I) and (II) indicate that the conformation of the βGal p ring is slightly more affected than the βGlc p ring by the solvomorphism. Conformations of the terminal O -glycosidic linkages in (I) and (II) are virtually identical, whereas those of the internal O -glycosidic linkage show torsion-angle changes of 6° in both C—O bonds. The exocyclic hydroxymethyl group in the βGal p residue adopts a gt conformation (C4′ anti to O6′) in both (I) and (II), whereas that in the βGlc p residue adopts a gg ( gauche – gauche ) conformation (H5 anti to O6) in (II) and a gt ( gauche – trans ) conformation (C4 anti to O6) in (I). The latter conformational change is critical to the solvomorphism in that it allows water to participate in three hydrogen bonds in (I) as opposed to only two hydrogen bonds in (II), potentially producing a more energetically stable structure for (I) than for (II). Visual inspection of the crystalline lattice of (II) reveals channels in which methanol solvent resides and through which solvent might exchange during solvomorphism. These channels are less apparent in the crystalline lattice of (I). 

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2. Selective hydrosilylation of olefins by a two-dimensional Rh( i ) low-valent metal–organic framework

   https://doi.org/10.1039/D5CC02201K  

   Mandal, Dipendu; Esposito, Madison R; Griffin, Samuel E; Domecus, Grant P; Cohen, Seth M (July 2025, Chemical Communications)

   Multitopic phosphine ligands combined with Rh(i) or Ir(i) nodes assemble into low-valent metal–organic frameworks (LVMOFs) with a two-dimensional (2D) topology and catalytic activity. 

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3. Liquid–liquid phase separation in particles containing secondary organic material free of inorganic salts

   https://doi.org/10.5194/acp-17-11261-2017  

   Song, Mijung; Liu, Pengfei; Martin, Scot T.; Bertram, Allan K. (January 2017, Atmospheric Chemistry and Physics)

   Particles containing secondary organic material (SOM) are ubiquitous in the atmosphere and play a role in climate and air quality. Recently, research has shown that liquid–liquid phase separation (LLPS) occurs at high relative humidity (RH) (greater than  ∼  95 %) in α-pinene-derived SOM particles free of inorganic salts, while LLPS does not occur in isoprene-derived SOM particles free of inorganic salts. We expand on these findings by investigating LLPS at 290 ± 1 K in SOM particles free of inorganic salts produced from ozonolysis of β-caryophyllene, ozonolysis of limonene, and photo-oxidation of toluene. LLPS was observed at greater than  ∼  95 % RH in the biogenic SOM particles derived from β-caryophyllene and limonene while LLPS was not observed in the anthropogenic SOM particles derived from toluene. This work combined with the earlier work on LLPS in SOM particles free of inorganic salts suggests that the occurrence of LLPS in SOM particles free of inorganic salts is related to the oxygen-to-carbon elemental ratio (O : C) of the organic material. These results help explain the difference between the hygroscopic parameter κ of SOM particles measured above and below water saturation in the laboratory and field, and have implications for predicting the cloud condensation nucleation properties of SOM particles. 

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4. Gold( i ) ethylene complexes supported by electron-rich scorpionates

   https://doi.org/10.1039/d0cc07717h  

   Wu, Jiang; Noonikara-Poyil, Anurag; Muñoz-Castro, Alvaro; Dias, H. V. (February 2021, Chemical Communications)

   null (Ed.)

   Ethylene complexes of gold( i ) have been stabilized by electron-rich, κ 2 -bound tris(pyrazolyl)borate ligands. Large up-field shifts of olefinic carbon NMR resonances and relatively long CC distances of gold bound ethylene are indicative of significant Au( i ) → ethylene π-backbonding relative to the analog supported by a weakly donating ligand, consistent with the computational data. 

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5. Synthesis and cytotoxicity studies of Cu( i ) and Ag( i ) complexes based on sterically hindered β-diketonates with different degrees of fluorination

   https://doi.org/10.1039/d3dt02179c  

   Pellei, Maura; Del_Gobbo, Jo’; Caviglia, Miriam; Karade, Deepika V; Gandin, Valentina; Marzano, Cristina; Noonikara_Poyil, Anurag; Dias, H_V Rasika; Santini, Carlo (August 2023, Dalton Transactions)

   New Cu(i) and Ag(i) phosphane complexes supported by β-diketonate ligands were synthesized and evaluated for their antitumor activity by 2D and 3D cell viability studies. 

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