{Cu4Br5[(η 5-C5H4PPh2)(η 5-C5H5)Co]4}[PF6]3, [(η 5-C5H4PPh2)(η 5-C5H5)Co]+ = ((η 5-cyclopentadienyl)[η 5-1-(diphenylphosphino) cyclopentadienyl] cobaltocenium) and {Ag(NO3)(CH3COCH3)[(η 5-C5H4PPh2)(η 5-C5H5)Co]} n [PF6] n have been synthesized and characterized by elemental analyses, infrared spectroscopy, X-ray diffraction techniques, and by cyclic voltammetry. {Cu4Br5[(η 5-C5H4PPh2)(η 5-C5H5)Co]4}[PF6]3 contains four coplanar copper atoms bridged by four μ-Br and one central μ 4-Br occupying the apex of a square pyramid, and {Ag(NO3)(CH3COCH3)[(η 5-C5H4PPh2)(η 5-C5H5)Co]} n [PF6] n affording a 1-D coordination zigzag polymer.

Cyclopentadienyl complex

Square pyramid

10.1080/00958970903215099

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ChemInform Abstract: Electronic Tuning Cyclization of Aryl‐1,4‐enediones: AlCl₃‐Mediated Nazarov‐Type Cyclization to Synthesize Polysubstituted‐1‐indanones.

ChemInform (2015)

Yanping Zhu Qun Cai Feng‐Cheng Jia Mei‐Cai Liu Qinghe Gao

Abstract Substrates (I) with aroyls, esters and conjugated enones attached to the 5‐position require two or more electron donating methoxy groups at the aryl ring to promote the reaction.

10.1002/chin.201518105

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CCDC 1536357: Experimental Crystal Structure Determination

The Cambridge Structural Database (2017)

Wenjing Xiang Zengjin Dai K. Li Lin Li

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1nkpxt

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CCDC 695899: Experimental Crystal Structure Determination

The Cambridge Structural Database (2011)

Xiong Li Shuling Gong Wei-Ping Yang Yan Li Yuanyin Chen

10.5517/ccrc4cl

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CCDC 788596: Experimental Crystal Structure Determination

The Cambridge Structural Database (2012)

Xiang‐Gao Meng Liang Liu Hang Zhang Yuanyuan Luo Changlin Liu

10.5517/ccvgllg

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Highly Efficient Capture and Conversion of Co2 into Cyclic Carbonates from Actual Flue Gas Under Atmospheric Pressure

Wen‐Wang Yu Xiang‐Gao Meng Wen Li Liyu Chen Zi‐Yu Gan

Chemical conversion of CO2 to cyclic carbonates is one of the most attractive strategies for CO2 capture and storage utilization. Herein, a binary organocatalyst of 3-aminobenzylalcohol/n-Bu4NI was used to gently catalyze the insertion of CO2 into the terminal/internal epoxides to generate cyclic carbonates under metal-free and solvent-free conditions. Twelve representative terminal epoxides reacted with CO2 to achieve excellent cyclic carbonate yields of up to 99.1% at 30 °C and 1 atm CO2 and six low activity internal di-substituted epoxides were converted to corresponding cyclic carbonates with yields of up to 96.2%. Effect of concentration of CO2 on the reaction yield was investigated in detail at atmospheric pressure. Experiments on actual flue gas and water resistance revealed the potential industrial value of this binary organocatalyst. The yield of cyclic carbonate reached 99% by using actual flue gas under very mild conditions of 60 °C and 1 atm. The binary organocatalyst can be recycled and reused 5 times without significant loss of catalytic activity. The results of 4-fold epoxide amplification experiment showed that the residual CO2 in the flue gas was only 793 ppm after reaction at 1 atm and 60 °C, indicating the good CO2 capture and conversion ability. Reaction kinetics and catalytic mechanism of the cycloaddition were investigated in detail. The synergistic effect among functional groups of catalysts on substrates is the essential factor for the high activity of the catalyst.

10.2139/ssrn.4805064

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CCDC 1823272: Experimental Crystal Structure Determination

The Cambridge Structural Database (2018)

Ye Liu Heng-Yi Yu Hong-Zhe Xu Junjun Liu Xiang‐Gao Meng

10.5517/ccdc.csd.cc1z687p

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CCDC 1967390: Experimental Crystal Structure Determination

The Cambridge Structural Database (2020)

Jia Zhou Ying Gao Jinling Chang Heng-Yi Yu Juan Chen

10.5517/ccdc.csd.cc24176n

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