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Metal-ion-tuned metal-organic frameworks for C2H2/CO2 separation
Meng Sun, Hongyan Liu, Xiaokang Wang, Xinlei Yang, Fei Gao, Deyu Xie, Weidong Fan*, Yinfeng Han*, Ben Xu, Daofeng Sun Submit a Manuscript
Metal-ion-tuned metal-organic frameworks for C2H2/CO2 separation
Meng Sun, Hongyan Liu, Xiaokang Wang, Xinlei Yang, Fei Gao, Deyu Xie, Weidong Fan*, Yinfeng Han*, Ben Xu, Daofeng Sun Submit a Manuscript
Recent progress of newly developed functional building units and corresponding nonlinear optical materials
Wenjing Tan, Chenyang Zhang, Tingting Huang, Bingbing Zhang*
Chin. J. Struct. Chem., 2023, 42: 100098. DOI: 10.1016/j.cjsc.2023.100098
September 15, 2023
NLO crystal; Anion unit; NLO-active unit; Second-harmonic generation; Birefringence
ABSTRACT
Nonlinear optical (NLO) crystals are key materials for solid-state lasers, which play an important role in modern science and technology. However, owing to the intrinsic limitation of functional building units (FBUs) in conventional compounds, it is difficult to surpass the performance of existing materials. Therefore, it is necessary to continuously explore new NLO-active FBUs to overcome the recent stagnant situation. Recently, a lot of new FBUs were discovered as NLO-active units in different wavelength ranges. Their contributions are confirmed by the performance of corresponding crystals. In this review, newly identified NLO-active units and corresponding NLO crystals are summarized and discussed in terms of crystal structure, NLO performance, and structure-property relationship. One can find that the heteroleptic coordinated tetrahedra and organic π-conjugated planar groups are the main source of new FUBs that will be a research hotspot in further research work. This review concludes the feasible directions on the exploration of new NLO crystals to satisfy the urgent requirements.
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