𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Crystal Growth, Structure, and Properties of New Nonlinear Optical Materials: K2Ln(NO3)5·2H2O (Ln=La, Ce, Pr, Nd, Sm)

✍ Scribed by Wenting Dong; Hongjie Zhang; Qiang Su; Yonghua Lin; Shumei Wang; Congshan Zhu

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
168 KB
Volume
148
Category
Article
ISSN
0022-4596

No coin nor oath required. For personal study only.

✦ Synopsis

Single crystals of K 2 Ln(NO 3 ) 5 ' 2H 2 O (Ln ‫؍‬ La, Ce, Pr, Nd, Sm) (KLnN) were grown by evaporation in aqueous solution under constant temperature conditions. The structure of KPrN was determined from the single-crystal X-ray di4raction data. The KPrN crystallizes in the orthorhombic space group Fdd2 with parameters a ‫؍‬ 21.411(3) A s , b ‫؍‬ 11.2210(10) A s , c ‫؍‬ 12.208(2) A s , Z ‫؍‬ 6, V ‫؍‬ 2933.0(7) A s 3 , R ‫؍‬ 0.0240, R w ‫؍‬ 0.0603. The powder second harmonic generation (SHG) intensities of KLnN (Ln ‫؍‬ La, Ce, Pr, Nd, Sm) are also studied. The results demonstrate that their SHG intensities are 4+9 times larger than that of KDP, in which the KPrN shows the highest SHG coe7cient.

📜 SIMILAR VOLUMES

Preparation, Crystal Structures, and Pro
Preparation, Crystal Structures, and Properties of Rhenates with Multiple Re–Re Bonds: Ln2ReO5 (Ln=Sm, Eu, Gd), Ln3Re2O9 (Ln=Pr, Nd, Sm), and Ln4Re6O19 (Ln=La–Nd)
✍ Wolfgang Jeitschko; Dieter H Heumannskämper; Marietta S Schriewer-Pöttgen; Ute C 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 268 KB

Most of the title compounds were prepared by reaction of the rare-earth metaperrhenates Ln(ReO 4 ) 3 with the rare-earth metals in sealed silica tubes. Nd 4 Re 6 O 19 was obtained by reaction of the intermetallic compound NdRe 2 with the metaperrhenate Nd(ReO 4 ) 3 . The compounds Ln 2 ReO 5 crystal