A series of homoleptic Cr(III) complexes containing substituted anionic 1,3-bis(pyridin-2-ylimino)isoindolin-2-ide ligands are phosphorescent with max in the 777970 nm range in degassed fluid solutions. The energy gap law has been...

Formic acid/choline chloride (F-DES), one of high-e ciency deep eutectic solvents (DES) for lignocellulose pretreatment, has great potential in the production of nanocellulose (NC). In this work, the integrated preparation of cellulose nanocrystals (CNCs) and cellulose nano brils (CNFs) was developed using F-DES pretreatment and the followed ball milling. Then, the properties of the resultant NC products (F-NC) were comprehensively investigated. The NC samples obtained from direct ball milling and urea/choline chloride (U-DES) plus ball milling (i.e. B-NC, and U-NC, accordingly) were used for comparison. Characterization results showed that similar to U-DES, F-DES pretreatment could effectively enhance the brillation of cellulose and facilitate the followed ball milling for the production of NC, and the yields of NC (CNCs plus CNFs) were over 95%. Yet, compared with B-NC and U-NC, F-NC with surface ester groups had better ability to stabilize the oil/water interface for further preparation of oil-in-water Pickering emulsion. In addition, F-DES has lower viscosity than U-DES. The recovery rate of F-DES could reach 92% after three cycles, and the recycled F-DES without obvious increase of viscosity showed better reusability to make the whole process clean and sustainable.

In the era of digital economy, with the rapid development of society and economy, the market competition among enterprises is becoming more and more fierce, and they are facing greater development pressure. Human resources are an important manifestation of the competitiveness of an enterprise, and various management tasks rely on the support of talents. Therefore, enterprises should analyze the development of the digital age, innovate and improve human resource management measures, fully mobilize employees' enthusiasm for work, encourage employees to maximize their value in their positions, and help enterprises move towards a better stage of development. There are problems such as lack of incentive measures in human resource management and control in modern enterprises, which will have a negative impact on the development of enterprises. This article discusses the effective path for enterprises to innovate human resource management in the era of digital economy, in order to provide reference.