Optical nonlinear properties of metal cluster [PPh4][C*pWS3(CuBr)3(dppm)]

Synthesis, crystal structures and third-order nonlinear optical properties of a new family of double incomplete cubane-like clusters [(η5-C5Me5)2Mo2(μ3-S)3SCu2X(μ-X)]2 (X=Cl−, Br−, SCN−) and cubane-like clusters [(η5-C5Me5)2Mo2(μ3-S)4(CuX)2] (X=Br−, SCN−, CN−)

“…The reactions of thiomolybdates and thiotungstates [MO 4Àn S n ] 2À and [(g 5 -C 5 Me 5 )MS 3 ] À (M = Mo, W) with copper(I) salts have been extensively investigated due to their rich chemistry , and their relations to biological systems [1,5,6,28,29], and electro/photonic materials [11,15,16,24,26,[30][31][32][33][34][35][36][37][38][39]. However, only a few reactions are involved in the utilization of the disulfido-bridged dimolybdenum clusters [Cp 0 2 Mo 2 S 4 ] (Cp 0 = g 5 -C 5 H 5 , g 5 -C 5 H 4 Me or g 5 -C 5 Me 5 ) [40,41].…”

“…Some of these clusters exhibited good third-order nonlinear optical (NLO) properties in solution [16,26,[30][31][32]36,37,39]. In order to expand the chemistry of Mo(W)/Cu/S clusters and screen out clusters with better NLO performances, we have became to adopt other Mo(W)/S precursors including 1 [41][42][43].…”

Reverse saturable absorption in Er+3 doped systems

“…Among the possible materials investigated are fullerenes and their derivatives [6], metal clusters [7] and polymers [8]. More recently, rare earth ions, particularly Er 3+ have been investigated for optical limiting [9] and optical inversion [10] applications.…”