安徽工业大学学报(自然科学版)
安徽工業大學學報(自然科學版)
안휘공업대학학보(자연과학판)
JOURNAL OF ANHUI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2008年
4期
383-386
,共4页
段泰轲%冯妍%张修臻%张千峰
段泰軻%馮妍%張脩臻%張韆峰
단태가%풍연%장수진%장천봉
硒代杂金属%类立方烷簇合物%晶体结构%银簇合物%光学限幅效应
硒代雜金屬%類立方烷簇閤物%晶體結構%銀簇閤物%光學限幅效應
서대잡금속%류립방완족합물%정체결구%은족합물%광학한폭효응
heteroselenometalate%cubane-like cluster%crystal structure%silver cluster%optical limiting effect
[Et4N]2[WSe4]与AgBr在三环己烷基膦(PCy3)存在下的反应得到典型的立方烷簇合物(μ3-Br)(μ3-WSe4)(AgPCy3)3,经单晶X-射线衍射测定了其结构,此结构包括一个高度扭曲的立方烷中心{WAg3Se3Br}结构,中心钨原子和每个银原子的配位几何均呈四面体构型,W…Ag平均间距为0.302 7(9)mm,在激光脉冲为7 ns、激光波长为532nm的条件下,最大光限幅性阈值为0.42 J/cm2.
[Et4N]2[WSe4]與AgBr在三環己烷基膦(PCy3)存在下的反應得到典型的立方烷簇閤物(μ3-Br)(μ3-WSe4)(AgPCy3)3,經單晶X-射線衍射測定瞭其結構,此結構包括一箇高度扭麯的立方烷中心{WAg3Se3Br}結構,中心鎢原子和每箇銀原子的配位幾何均呈四麵體構型,W…Ag平均間距為0.302 7(9)mm,在激光脈遲為7 ns、激光波長為532nm的條件下,最大光限幅性閾值為0.42 J/cm2.
[Et4N]2[WSe4]여AgBr재삼배기완기련(PCy3)존재하적반응득도전형적립방완족합물(μ3-Br)(μ3-WSe4)(AgPCy3)3,경단정X-사선연사측정료기결구,차결구포괄일개고도뉴곡적립방완중심{WAg3Se3Br}결구,중심오원자화매개은원자적배위궤하균정사면체구형,W…Ag평균간거위0.302 7(9)mm,재격광맥충위7 ns、격광파장위532nm적조건하,최대광한폭성역치위0.42 J/cm2.
A typical cubane-like cluster, (μ3-Br)(μ3-WSe4)(AgPCy3)3, was synthesized from interaction of [Et4N]2[WSe4] and AgBr in the presence of PCy3 (Cy=cyclohexyl) and structurally characterized by single-crystal X-ray diffraction. The structure contains a highly distorted eubane-like {WAg3Se3Br} core. The coordination geometries of the tungsten center and each silver atom are tetrahedral. The mean W Ag separation is 0.302 7(9) nm. Large optical limiting effect with threshold of 0.42 J/cm2 was observed with the laser pulses of 7 ns at 532 nm.