人工晶体学报
人工晶體學報
인공정체학보
2004年
4期
490-495
,共6页
张国春%李云阁%傅佩珍%潘世烈%常峰%吴以成
張國春%李雲閣%傅珮珍%潘世烈%常峰%吳以成
장국춘%리운각%부패진%반세렬%상봉%오이성
Na3La2(BO3)3%晶体结构%倍频效应
Na3La2(BO3)3%晶體結構%倍頻效應
Na3La2(BO3)3%정체결구%배빈효응
sodium lanthanum borate%crystal structure%second harmonic generation (SHG)
以Na2CO3-H3BO3-NaF为助熔剂,使用顶部籽晶法生长出Na3La2(BO3)3透明单晶.测定了Na3La2(BO3)3的晶体结构,该晶体属正交晶系,空间群:mm2(No.38),晶胞参数为a＝0.51580(10)nm,b=1.1350(2)nm,c=0.73230(15)nm,α＝β＝γ＝90°,V＝0.42871(15)nm3,密度:.053g/cm3.晶体结构中的硼氧基团是平面的BO3基团,BO3基团相互独立,且与Na(1)O6、Na(2)O8、Na(3)O6和La(1)O9配位多面体连结形成三维网络骨架结构.讨论了Na3La2(BO3)3的晶体结构与倍频效应的关系.
以Na2CO3-H3BO3-NaF為助鎔劑,使用頂部籽晶法生長齣Na3La2(BO3)3透明單晶.測定瞭Na3La2(BO3)3的晶體結構,該晶體屬正交晶繫,空間群:mm2(No.38),晶胞參數為a＝0.51580(10)nm,b=1.1350(2)nm,c=0.73230(15)nm,α＝β＝γ＝90°,V＝0.42871(15)nm3,密度:.053g/cm3.晶體結構中的硼氧基糰是平麵的BO3基糰,BO3基糰相互獨立,且與Na(1)O6、Na(2)O8、Na(3)O6和La(1)O9配位多麵體連結形成三維網絡骨架結構.討論瞭Na3La2(BO3)3的晶體結構與倍頻效應的關繫.
이Na2CO3-H3BO3-NaF위조용제,사용정부자정법생장출Na3La2(BO3)3투명단정.측정료Na3La2(BO3)3적정체결구,해정체속정교정계,공간군:mm2(No.38),정포삼수위a＝0.51580(10)nm,b=1.1350(2)nm,c=0.73230(15)nm,α＝β＝γ＝90°,V＝0.42871(15)nm3,밀도:.053g/cm3.정체결구중적붕양기단시평면적BO3기단,BO3기단상호독립,차여Na(1)O6、Na(2)O8、Na(3)O6화La(1)O9배위다면체련결형성삼유망락골가결구.토론료Na3La2(BO3)3적정체결구여배빈효응적관계.
Single crystal of Na3La2(BO3)3 was grown from the high temperature solution by employing Na2CO3-H3BO3-NaF as fluxes. The structure was established by single-crystal X-ray diffraction method. The compound crystallizes in the orthorhombic system, space group Amm2 (No.38) with a=0.51580(10) nm, b=1.1350(2) nm, c=0.73230(15) nm, α=β=γ=90°, V=0.42871(15) nm, and Z=2. Its three-dimensional network structure is formed by isolated BO3 triangles held together by the Na(1)O6, Na(2)O8, Na(3)O6, and La(1)O9 polyhedra. The relationship between the structure and optical second harmonic generation (SHG) effect of Na3La2(BO3)3 crystal was also discussed.
