On November 3, 2021, the 2020 National Science and Technology Award conference was held in the Great Hall of the people. "Chelation chemistry of carbon chain and metal", the scientific research achievement of Haiping Xia 's team won the second prize of the National Natural Science Award. Haiping Xia and Hong Zhang attended the award ceremony in Beijing.
Aromaticity, one of the most fundamental concepts in organic chemistry, provides intrinsic stabilisation for cyclic compounds as a result of the delocalisation of π electrons. Currently, aromatic compounds (e.g., benzene, benzene derivatives, porphyrins, fullerenes, carbon nanotubes and graphene) have been applied in almost every field, including chemical engineering, biomedicine, materials science, energy science and environmental science.
We describe a heterometallic [Os-Cu] complex with the characteristics of bimetallics, metallaaromatics, and pincer complexes. This complex serves as a highly effective catalyst for selective amino- and oxyselenation of unactivated alkenes. More than 80 examples including challenging substrates of unsymmetric aliphatic alkenes and amine-based nucleophiles in such reactions are provided.
We directly employed metalla-aromatics to develop EAS reactions of Craig-Möbius aromatics with excellent efficiency and remarkable regioselectivity, and the reactions were quantified in computational studies to further rationalize the preferred sites of attack on the different aromatic rings.
we use a series of synthesized (carbolong-derived) organometallic complexes as CILs to tune the electrode WF in inverted PSCs. Photovoltaic devices based on a Ag cathode, which was modified with these organometallic complexes, received a boosted PCE up to 21.29% and a remarkable fill factor that reached 83.52%, which are attributed to the dipole-enhanced carrier transport.
Congratulations to Chen, S.; Gao, X.; Hua, Y.; Peng, L. and Zhang, Y.! Their Article "Addition of Alkynes and Osmium Carbynes towards Functionalized dπ–pπ Conjugated Systems. " was accepted by [Nat. Comm.].
Polydentate complexes containing combinations of nitrogen and carbon (N and C) ligating atoms are among the most fundamental and ubiquitous molecules in coordination chemistry, yet the formation of such complexes with planar high-coordinate N/C sites remains challenging. Herein, we demonstrate an efficient route to access related complexes with tetradentate CCCN and pentadentate CCCCN and NCCCN cores by successive modification of the coordinating atoms in complexes with a CCCC core.
The discovery of new aromatic molecular frameworks has been one of the most attracting works for synthetic chemists. However, the design and synthesis of aromatic molecules with more than three fused-rings sharing a bridgehead atom is challenging and has never been achieved.
Congratulations! Our work “Successive modification of polydentate complexes gives access to planar carbon- and nitrogen-based ligands” (Nat. Commun. 2019, 10, 1488) was selected as Nature Communications Editors' Highlights. .
Congratulations! Our work “Reactions of Metallacyclopentadiene with Terminal Alkynes: Isolation and Characterization of Metallafulvenallene Complexes” (Organometallics 2019, 38, 3053-3059) was selected as ACS Editors' Choice.
The incorporation of a metal-carbon triple bond into a ring system is challenging because of the linear nature of triple bonds. To date, the synthesis of these complexes has been limited to those containing third-row transition metal centers, namely, osmium and rhenium. We report the synthesis and full characterization of the first cyclic metal carbyne complex with a second-row transition metal center, ruthenapentalyne.