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|Title:||New nonlinear optical chromophore. Synthesis, structures, and optical limiting effect of transition-metal clusters (n-Bu4N)3[WM3Br4S4] (M = Cu and Ag)|
|Authors:||Shi, S. |
|Citation:||Shi, S.,Ji, W.,Lang, J.P.,Xin, X.Q. (1994-04-07). New nonlinear optical chromophore. Synthesis, structures, and optical limiting effect of transition-metal clusters (n-Bu4N)3[WM3Br4S4] (M = Cu and Ag). Journal of physical chemistry 98 (14) : 3570-3572. ScholarBank@NUS Repository.|
|Abstract:||Cubane-like heteronuclear transition-metal clusters (n-Bu4N)3[WCu3Br4S4] (I) and (n-Bu4N)3[WAg3Br4S4) (II) were synthesized by solid-state reactions. These molecules respond nonlinerly to the incident light and exhibit a strong optical limiting effect with threshold and transmitted saturation levels of 1.6 and 0.7 J/cm2 for compound I and 0.8 and 0.5 J/cm2 for compound II, as examined in a 1-mm cell with 7-ns laser pulses at 532 nm. The optical limiting power of compound I is comparable to that of C60 while the optical limiting power of compound II is about 2 times stronger than that of C60, one of the best molecules reported for optical limiting.|
|Source Title:||Journal of physical chemistry|
|Appears in Collections:||Staff Publications|
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