Ag3I[(MoO3)2(IO3)2]: a new polar material synthesized from the structural modulation of molybdenyl iodate architectures by polarizable cation (Ag+) and anion (I−). Issue 36 (11th September 2017)

• Record Type: Journal Article
• Authors: Meng, Chang-Yu; Zhang, Pei; Wang, Rong-Fang; Geng, Lei
• Is Part Of: Dalton transactions. Volume 46:Issue 36(2017)
• Page Start: 12320
• Page End: 12327
• Publication Date: 2017-09-11
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt02795h
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A new noncentrosymmetric compound Ag3 I[(MoO3 )2 (IO3 )2 ] has been hydrothermally synthesized and characterized. Abstract : A new polar material Ag3 I[(MoO3 )2 (IO3 )2 ], which contains the extended 2D [(MoO3 )2 (IO3 )2 ]∞ 2 n + molybdenyl iodate framework found in the known noncentrosymmetric material K2 [(MoO3 )2 (IO3 )2 ], has been synthesized through the conventional hydrothermal method at 200 °C. It crystallizes in the orthorhombic system space group Pna 21 with a = 8.0072(2) Å, b = 21.2678(6) Å, c = 7.3241(2) Å, and V = 1247.26(6) Å 3 . Its structure features 2D corrugated [(MoO3 )2 (IO3 )2 ]∞ 2 n + anionic layers with neighboring anionic layers stitched through 1D [IAg3 ]∞ 2 n + cationic chains to form a 3D structure. The 1D [IAg3 ]∞ 2 n + cationic chain acts as the template for parallel alignments of the polar iodate anions along the c axis in 2D [(MoO3 )2 (IO3 )2 ]∞ 2 n + anionic layers, which leads to the polar structure of the material. Second-harmonic generation (SHG) measurements on Ag3 I[(MoO3 )2 (IO3 )2 ] show a moderate SHG efficiency of about 0.7 times that of the KDP reference under 1064 nm laser radiation. In addition, the thermogravimetric analyses (TGA) and optical measurements of the compound were also carried out.