Nonlinear optical properties of transition metal-phosphine complexes

Zhai, T.; Lawson, Christopher M.; Gale, David C.; Gray, Gary M.

doi:10.1016/0925-3467(94)00126-x

Cited by 29 publications

(3 citation statements)

References 18 publications

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“…Table 3 lists the c value of some Mo(W)/Cu(Ag)/S clusters and known NLO materials for comparison. The c values of 1 and 2 are comparable to those of the metal sulfide clusters derived from [MS 4 ] 2À or [MOS 3 ] 2À (M = Mo, W) and somewhat larger than those of C 60 and C 70 [34], organometallic compounds, and their films like TiOPc [30][31][32][33][35][36][37]. Considering the fact that the impressive c values for 1 and 2 and other Mo(W)/Cu(Ag)/S clusters are obtained Table 2 Selected bond lengths (Å ) and angles (°) for [MoS 4 Cu 4 (a-MePy) 3 from a very diluted solution, much better NLO performance can be anticipated if the solubility of the cluster can be improved significantly or a thin film of the cluster can be engineered.…”

Section: Non-linear Optical (Nlo) Properties Of 1 Andmentioning

confidence: 88%

Syntheses, crystal structures, and third-order nonlinear optical properties of two novel Mo/Cu/S clusters: [MoS4Cu4(α-MePy)5Br2]·2(α-MePy)0.5 and {[MoS4Cu4(α-MePy)3Br](μ-Br)·(α-MePy)}n (α-MePy=α-methylpyridine)

Zhang

Chen

et al. 2005

Journal of Organometallic Chemistry

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Section: Non-linear Optical (Nlo) Properties Of 1 Andmentioning

confidence: 88%

Syntheses, crystal structures, and third-order nonlinear optical properties of two novel Mo/Cu/S clusters: [MoS4Cu4(α-MePy)5Br2]·2(α-MePy)0.5 and {[MoS4Cu4(α-MePy)3Br](μ-Br)·(α-MePy)}n (α-MePy=α-methylpyridine)

Zhang

Chen

et al. 2005

Journal of Organometallic Chemistry

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“…Diastereoselectivity was excellent at 98% and a simple stereocontrolled thallium(Ir1)-mediated ring-contraction afforded (54) in a highly efficient fashion. This compound has been used as a key intermediate in an enantioselective synthesis of ( +)-ferruginine (55). Two steps were required to remove the ester and its chiral auxiliary, and functional group exchange at nitrogen was also needed.…”

Section: Cycloaddition Chemistry Of Metal N-complexesmentioning

confidence: 99%

Chapter 7. Organometallic chemistry: the transition elements

Stephenson¹

1995

Annu. Rep. Prog. Chem., Sect. B

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If one factor must be chosen to illustrate the vitality of research in organometallic chemistry, it would be the huge scope available for structural variation by the judicious selection of metal and ligand types and the inclusion of organic functionality. As methods of organometallic synthesis become more assured, so chemists are becoming increasingly adventurous in their choice of target structures. New applications of organometallic complexesMetal-ligand assemblies can be custom designed and tailor-made for particular purposes ranging from materials science and bioorganic chemistry, to catalyst-and reagent-optimization. Recognition pockets incorporating organometallic units illustrate the point. The combination of 4-aminopyridine arms with the cobaltocinium cation in (1) affords an anion recognition pocket that is able to recognize C1-, HSO, and H,PO, anions, detected by exploiting the electrochemical properties of the cobalt complex.' Amide-linked bis-cobaltocinium structures have also been prepared.2 In the

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“…This approach has the added advantage that substitution of the polythiophene by a metal complex may modify the optoelectronic properties of polythiophene. We and others have demonstrated that polythiophene groups may be incorporated into transition metal complexes via functionalization of the polythiophenes with phosphines followed by coordination of the phosphine groups to the transition metals. − ,− We have recently used this approach to prepare both oligomeric complexes with phosphine-substituted bithiophenes and monomeric complexes with similar ligands that were models for the corners and edges in the oligomers . The complexes exhibited high solubilities, but the bithiophene groups contained too few thiophenes to exhibit interesting optoelectronic properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Transition Metal Systems Containing Phosphino-Oligothiophene Ligands for Nonlinear Optical Materials

Myrex¹,

Gray²,

Spivey³

et al. 2006

Organometallics

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Polythiophenes exhibit interesting third-order nonlinear optical properties but poor solubilities. Incorporating polythiophenes into transition metal complexes should yield readily soluble materials, and the transition metal substituent may alter third-order nonlinear optical properties of the polythiophene. In this paper, we report the synthesis and characterization of 2-diphenylphosphinothianaphthene, A, and its trans-PdCl 2 L 2 , B, and cis-PtCl 2 L 2 , C, analogues. Additionally 2-diphenylphoshino-5:2′,5′:2′′-terthiophene, D, its trans-PdCl 2 L 2 complex, E, both first prepared by Wolf, 25 the previously unprepared cis-PtCl 2 L 2 analogue, F, and the oxide of A, G, were prepared and investigated for nonlinear optical (NLO) behavior. No appreciable third-order NLO behavior was observed for A, D, or G. However both E and F exhibited nonlinear refraction, as shown by Z-scan measurements, and nonlinear absorption. The nonlinear absorption was significantly stronger for E, indicating that the metal center has a significant affect on nonlinear absorption. This is the first reported observation of this type of nonlinear behavior in metalphosphinothiophene systems.

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Nonlinear optical properties of transition metal-phosphine complexes

Cited by 29 publications

References 18 publications

Syntheses, crystal structures, and third-order nonlinear optical properties of two novel Mo/Cu/S clusters: [MoS4Cu4(α-MePy)5Br2]·2(α-MePy)0.5 and {[MoS4Cu4(α-MePy)3Br](μ-Br)·(α-MePy)}n (α-MePy=α-methylpyridine)

Syntheses, crystal structures, and third-order nonlinear optical properties of two novel Mo/Cu/S clusters: [MoS4Cu4(α-MePy)5Br2]·2(α-MePy)0.5 and {[MoS4Cu4(α-MePy)3Br](μ-Br)·(α-MePy)}n (α-MePy=α-methylpyridine)

Chapter 7. Organometallic chemistry: the transition elements

Synthesis and Characterization of Transition Metal Systems Containing Phosphino-Oligothiophene Ligands for Nonlinear Optical Materials

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