Combining a Titanium–Organic Cage and a Hydrogen‐Bonded Organic Cage for Highly Effective Third‐Order Nonlinear Optics

Chen

et al. 2022

Inorg. Chem. Front.

Section: Introductionmentioning

confidence: 99%

Assembly of cyclic ferrocene-sensitized titanium-oxo clusters with excellent photoelectrochemical activity

Chen

et al. 2022

Inorg. Chem. Front.

Threefold Collaborative Stabilization of Ag₁₄‐Nanorods by Hydrophobic Ti₁₆‐Oxo Clusters and Alkynes: Designable Assembly and Solid‐State Optical‐Limiting Application

Fan

Yuan

et al. 2021

Angewandte Chemie

Self Cite

Ag nanoclusters have received increasing attention due to their atomically precise and diverse structures and intriguing optical properties.N evertheless,t he inherent instability of Ag nanoclusters has seriously hindered their practical application. In this work, for the first time,A gc lusters are collaboratively protected by hydrophobic Ti-oxo clusters and alkyne ligands.I nitially,apyramidal Ag 5 cluster terminated with t BuCC À and CH 3 CN was inserted into the cavity of aTi 8oxonanoring to form Ag 5 @Ti 8 .T oovercome the instability of acetonitrile-terminated silver site,s uch two Ag 5 @Ti 8 clusters could sandwicha nA g 4 unit to form Ag 14 -nanorod@Ti 16 -oxonanoring (Ag 14 @Ti 16 ), whichi sp eripherally protected by fluorophenyl groups and alkyne caps.This threefold protected (hydrophobic fluorinated organic layer,T i-O shell, and terminal alkyne ligands) Ag 14 @Ti 16 exhibits superhydrophobicity and excellent ambient stability,e ndowing it with solidstate optical limiting characteristics.

One‐Pot and Shape‐Controlled Synthesis of Organic Cages

et al. 2021

Organic cages are fascinating because of their well‐defined 3D cavities, excellent stability, and accessible post‐modification. However, the synthesis is normally realized by fragment coupling approach in low yields. Herein, we report one‐pot, gram‐scale and shape‐controlled synthesis of two covalent organic cages (box‐shaped [4]cage and triangular prism‐shaped [2]cage) in yields of 46 % and 52 %, involving direct condensation of triangular 1,3,5‐tris(2,4‐dimethoxyphenyl)benzene monomer with paraformaldehyde and isobutyraldehyde, respectively. The cages can convert into high‐yielding per‐hydroxylated analogues. The [2]cage can be utilized as gas chromatographic stationary phase for high‐resolution separation of benzene/cyclohexane and toluene/methylcyclohexane. By changing the central moiety of the triangular monomer and/or aldehyde, this synthetic method would have the potential to be a general strategy to access diverse cages with tunable shape, size, and electronic properties.