Isolated facial and meridional tris(bipyridine)Ru(<scp>ii</scp>) for STM studies on Au(111)

Schramm, Alexandrina; Stroh, Christophe; Dössel, K.-F.; Lukas, Maya; Fuhr, Olaf; Löhneysen, H. v.; Mayor, Marcel

doi:10.1039/c2cc37904j

Cited by 10 publications

(11 citation statements)

References 33 publications

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“…Synthesis and Main Characterizations of A and B (4-(N,N-dibutylamino)-4 0 -(5-ethynyl-2; 2 0 -bipyridine) (A): 5-(ethynyl)-2; 2 0 -bipyridine (100 mg, 0.55 mmol) [10] and 4-N-dibutylamino,4 0 -iodoazobenzene (0.55 mmol) [11] were dissolved in 30 mL of freshly distillated triethylamine, under argon. CuI (10 mg, 0.053 mmol) and PdPPh 3 2 Cl 2 (17 mg, 0.027 mmol) were added to the mixture.…”

Section: Methodsmentioning

confidence: 99%

Effect of metal complexation on the nonlinear optical response of a conjugated ligand

et al. 2014

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International audienceOrganic nonlinear optical materials are widely investigated materials for fabricating optoelectronic devices. Particularly organic π-conjugated systems as well as transition metal complex compounds are studied in this direction because of the strong electronic coupling between the ligand and the metal, their excellent chemical stability, and their rich photochemical and photophysical properties. In this work, comparative studies of the third-order nonlinear optical susceptibilities of a bipyridine ligand (4-(N,N-dibutylamino)-4′-(5-ethynyl-2,2′-bipyridine)-azobenzene (A) and of the corresponding heteroleptic ruthenium complex (Ru(bpy)2(La)(PF6)2 (B) (La signifies the ligand) are presented. The NLO properties were investigated by means of the Z-scan technique using a 30 ps mode-locked Nd-YVO4 laser at 532 nm with a repetition rate of 10 Hz. Our results show that the introduction of the metal in the organic complex results in a significant modification of the third-order nonlinear optical response

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Section: Methodsmentioning

confidence: 99%

Effect of metal complexation on the nonlinear optical response of a conjugated ligand

et al. 2014

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“…[27,28] Structures tabilization by Vand er Waals forcesi nm onolayers,a nd efficient packing in SAMs,h ave been reported for backbones consisting of C 3 tetrahedral symmetric units equipped with Si or Cc ores. [13,15,29] Our initial attempts toward tripodal modelc ompounds were based on coordinationc omplexes comprising both neutral M III complexes [30,31] and charged tris(bipyridine)-Ru II derivatives, [32] but our recentm olecular designscomprise purely organic scaffolds such as 9,9'-spirobifluorenes. [33] Active-tail groups have been introduced to demonstrate the presenceo ftripodalm olecules on electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…Our initial attempts toward tripodal model compounds were based on coordination complexes comprising both neutral M III complexes and charged tris(bipyridine)‐Ru II derivatives, but our recent molecular designs comprise purely organic scaffolds such as 9,9′‐spirobifluorenes …”

Section: Introductionmentioning

confidence: 99%

Importance of the Anchor Group Position (Para versus Meta) in Tetraphenylmethane Tripods: Synthesis and Self‐Assembly Features

Lindner

Valášek

Homberg

et al. 2016

Chemistry A European J

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The efficient synthesis of tripodal platforms based on tetraphenylmethane with three acetyl-protected thiol groups in either meta or para positions relative to the central sp(3) carbon for deposition on Au (111) surfaces is reported. These platforms are intended to provide a vertical arrangement of the substituent in position 4 of the perpendicular phenyl ring and an electronic coupling to the gold substrate. The self-assembly features of both derivatives are analyzed on Au (111) surfaces by low-temperature ultra-high-vacuum STM, high-resolution X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy, and reductive voltammetric desorption studies. These experiments indicated that the meta derivative forms a well-ordered monolayer, with most of the anchoring groups bound to the surface, whereas the para derivative forms a multilayer film with physically adsorbed adlayers on the chemisorbed para monolayer. Single-molecule conductance values for both tripodal platforms are obtained through an STM break junction experiment.

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“…PXRD analysis indicated that the crystal structure of the framework was maintained after the impregnation process (Fig. [24][25][26][27] The Li + ion conductivity of 3a, 3b and 3c was measured on pellets by ac impedance spectroscopy (Fig. The presence of solvated Li + ions inside the channels of porous CB [6] crystals was further corroborated using FT-IR spectroscopy.…”

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confidence: 89%

Solid lithium electrolytes based on an organic molecular porous solid

et al. 2015

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Isolated facial and meridional tris(bipyridine)Ru(ii) for STM studies on Au(111)

Cited by 10 publications

References 33 publications

Effect of metal complexation on the nonlinear optical response of a conjugated ligand

Effect of metal complexation on the nonlinear optical response of a conjugated ligand

Importance of the Anchor Group Position (Para versus Meta) in Tetraphenylmethane Tripods: Synthesis and Self‐Assembly Features

Solid lithium electrolytes based on an organic molecular porous solid

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