New Noncentrosymmetric Material - [N(CH3)4]ZnCl3: Polar Chains of Aligned ZnCl4 Tetrahedra

被引:55
|
作者
Choi, Myung-Ho [1 ]
Kim, Sang-Hwan [2 ]
Chang, Hong-Young [2 ]
Halasyamani, P. Shiv [2 ]
Ok, Kang Min [1 ]
机构
[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea
[2] Univ Houston, Dept Chem, Houston, TX 77204 USA
关键词
2ND-HARMONIC GENERATING PROPERTIES; BOND-VALENCE PARAMETERS; CRYSTAL-STRUCTURE; AMMONIUM TETRACHLOROZINCATE; CENTER DISTORTION; ZINC-CHLORIDE; OXIDES; ANION; STEREOCHEMISTRY; SOLIDS;
D O I
10.1021/ic901064q
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new organically templated noncentrosymmetric polar zinc chloride, [N(CH3)(4)]ZnCl3, has been synthesized hydrothermally, and the structure was determined by single crystal X-ray diffraction. The reported material exhibits a unidimensional crystal structure consisting of chains of anionic ZnCl4 tetrahedra that are separated by [N(CH3)(4)](+) cations. Second-harmonic generation (SHG) measurement on the noncentrosymmetric [N(CH3)(4)]ZnCl3, using 1064 nm radiation, indicate the material has a SHG efficiency of approximately 15 x alpha-SiO2. Additional SHG measurements indicate the material is nonphase-matchable (type 1). In addition, converse piezoelectric measurements revealed d(33) values of 10 pm/V. Thermogravimetric analysis, UV-vis diffuse reflectance, and infrared spectroscopy were also performed, as were electronic structure calculations.. Crystal data: [N(CH3)(4)]ZnCl3, orthorhombic, space group Pmc2(1) (No. 26), with a = 7.2350(14) angstrom, b = 8.8210(18) angstrom, c = 15.303(3) angstrom, V = 976.6(3) angstrom(3), and Z = 4.
引用
收藏
页码:8376 / 8382
页数:7
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