当前位置: X-MOL 学术Chem. Asian J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
From Ag2Zr(IO3)6 to LaZr(IO3)5F2: a case of constructing wide-band-gap birefringent material through chemical cosubstitution.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-09-09 , DOI: 10.1002/asia.202001002
Feifei Mao 1, 2 , Jiadi Liu 1 , Jinyu Hu 3 , Hua Wu 1
Affiliation  

Two mixed‐metal zirconium iodates were prepared and studied as a case of chemical cosubstitution. The structure of Ag2Zr(IO3)6 (P21/c) features 0D [Zr(IO3)6]2− anion group and 1D [Ag(IO3)2] anionic chain, with the [Zr(IO3)6]2− anion groups interconnected by Ag+ ions into 3D network; LaZr(IO3)5F2 (P21/n) features 0D [Zr(IO3)5F2]3− anion group and 2D [La(IO3)5]2− anionic layer, with the [Zr(IO3)5F2]3− groups interlinked by La3+ ions into 3D structure. Notably, LaZr(IO3)5F2 is the first zirconium iodate fluoride reported. Wide optical band gaps of 3.77 and 4.13 eV are given for Ag2Zr(IO3)6 and LaZr(IO3)5F2, respectively. Theoretical calculations confirmed that the weak dd transition of Zr4+ in the band structure leads to a moderate band gap of Ag2Zr(IO3)6, and the introduction of F into the zirconium iodate compound results in a large band gap of LaZr(IO3)5F2. Both of the compounds are birefringent materials with birefringences of 0.064 @1064 nm and 0.082 @1064 nm, respectively.

中文翻译:

从Ag2Zr(IO3)6到LaZr(IO3)5F2:通过化学共取代构造宽带隙双折射材料的案例。

制备了两种混合金属碘酸锆,并进行了化学共取代的研究。Ag 2 Zr(IO 36P 2 1 / c)的结构具有0D [Zr(IO 36 ] 2-阴离子基团和1D [Ag(IO 32 ] -阴离子链,具有[Zr (IO 36 ]由Ag +离子互连成3D网络的2-阴离子基团;LaZr(IO 35 F 2P 2 1 / n)的特征是0D [Zr(IO 35 F 2 ] 3-阴离子基团和2D [La(IO 35 ] 2-阴离子层,[Zr(IO 35 F 2 ] 3−基团通过La相互连接3+离子变成3D结构。值得注意的是,LaZr(IO 35 F 2是第一个报道的碘酸锆氟化物。对于Ag 2 Zr(IO 36和LaZr(IO 35 F 2给出了3.77和4.13 eV的宽光学带隙, 分别。理论计算证实该弱d - d Zr中的过渡4+中的能带结构导致的Ag的适度的带隙2的Zr(IO 36,并引入的F -为在大频带中的锆化合物碘酸结果LaZr(IO 35 F 2的间隙。两种化合物都是双折射材料,其双折射分别为0.064 @ 1064 nm和0.082 @ 1064 nm。
更新日期:2020-11-04
down
wechat
bug