Stabilizing Two Classical Antiaromatic Frameworks: Demonstration of Photoacoustic Imaging and the Photothermal Effect in Metalla-aromaticsSubmitted by Jun Zhu on Tue, 03/31/2015 - 23:28
Antiaromatic species are substantially less thermodynamically stable than aromatic moieties. Herein, we report the stabilization of two classical antiaromatic frameworks, cyclobutadiene and pentalene, by introducing one metal fragment through the first [2+2] cycloaddition reaction of a late-transition-metal carbyne with alkynes. Experimental observations and theoretical calculations reveal that the metal fragment decreases the antiaromaticity in cyclobutadiene and pentalene simultaneously, leading to air- and moisture-stable products.
Congratulations to Jingjing for the joint paper with Xia's group accepted in Angew. Chem. Int. Ed.Submitted by Jun Zhu on Tue, 03/31/2015 - 23:22
For details, please check the link at http://onlinelibrary.wiley.com/doi/10.1002/anie.201501349/abstract
Probing the reactivity of microhydrated α-nucleophile in the anionic gas-phase SN2 reactionSubmitted by Jun Zhu on Thu, 03/26/2015 - 17:14
To probe the kinetic performance of microsolvated α-nucleophile, the G2(+)M calculations were carried out for the gas-phase SN2 reactions of monohydrated and dihydrated α-oxy-nucleophiles XO−(H2O)n = 1,2 (X = HO, CH3O, F, Cl, Br), and α-sulfur-nucleophile, HSS−(H2O)n = 1,2, toward CH3Cl. We compared the reactivities of hydrated α-nucleophiles to those of hydrated normal nucleophiles.
σ-Aromaticity in an Unsaturated Ring: Osmapentalene Derivatives Containing a Metallacyclopropene UnitSubmitted by Jun Zhu on Wed, 02/04/2015 - 19:29
In general, aromaticity can be clarified as π- and σ-aromaticity according to the type of electrons with major contributions. The traditional π-aromaticity generally describes the π-conjugation in fully unsaturated rings whereas σ-aromaticity may stabilize fully saturated rings with delocalization caused by σ-electron conjugation. Reported herein is an example of σ-aromaticity in an unsaturated three-membered ring (3 MR), which is supported by experimental observations and theoretical calculations.
Congratulations to Ke for the joint paper with Xia's group accepted in Angew. Chem. Int. Ed.Submitted by Jun Zhu on Wed, 02/04/2015 - 19:22
For details, please check the link at http://onlinelibrary.wiley.com/doi/10.1002/anie.201411220/abstract
Please note that it is the calculations that discover the σ-Aromaticity in such a uniqu system.
Congratulations to Ying for her metallasilabenzene paper selected as the Back Cover in Chem. Asian J.Submitted by Jun Zhu on Wed, 02/04/2015 - 16:25
For details, please check the link at http://onlinelibrary.wiley.com/doi/10.1002/asia.201590003/abstract
Why Does Activation of the Weaker C═S Bond in CS2 by P/N-Based Frustrated Lewis Pairs Require More Energy Than That of the C═O Bond in CO2? A DFT StudySubmitted by Jun Zhu on Tue, 12/09/2014 - 23:30
The sequestration of carbon disulfide (CS2), a common pollutant in environmental systems, is of great importance due to its physical harm to human beings. Compared with CO2 capture, that of CS2 is much less developed. The use of P/N-based frustrated Lewis pairs (FLPs) has been proven, both experimentally and theoretically, to be an alternative strategy to efficiently sequestrate CO2. Therefore, we pose the question of whether the analogue CS2 could also be sequestrated by the same FLPs, given that the C═S bond in CS2 is weaker than the C═O bond in CO2.
Discussion with Prof. Pierre H. DixneufSubmitted by Jun Zhu on Tue, 12/02/2014 - 00:45
Congratulations to Ke for her CS2 paper accepted in OrganometallicsSubmitted by Jun Zhu on Wed, 11/26/2014 - 22:38
Congratulations to Xuerui for winning the National Graduate StudentshipSubmitted by Jun Zhu on Mon, 11/24/2014 - 22:29
Ms. Xuerui Wang is awarded the National Graduate Studentship. Congratulations!