Photochromism of styryl cyanine dyes in solution

Sertova, N.; Nunzi, Jean‐Michel; Петков, Иван; Deligeorgiev, Todor

doi:10.1016/s1010-6030(97)00279-7

Cited by 26 publications

(34 citation statements)

References 1 publication

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“…In these series, the photochromism is restricted to 254 nm whereas ring-opening was reported to be also efficient in the maximum absorption band (typically 280−360 nm) 27,30 and the observed rate is slower. 46 As expected for an interconversion between two isomers, some isosbestic points are observed (309 and 398 nm).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Indolinooxazolidine: A Versatile Switchable Unit

et al. 2014

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The design of multiresponsive systems continues to arouse a lot of interest. In such multistate/multifunctional systems, it is possible to isomerize a molecular system from one metastable state to another by application of different stimulation such as light, heat, proton, or electron. In this context, some researches deal with the design of multimode switch where a same interconversion between two states could be induced by using indifferently two or more different kind of stimuli. Herein, we demonstrate that the association of an indolinooxazolidine moiety with a bithiophene unit allows the development of a new trimode switch. A reversible conversion between a colorless closed form and a colorful open form can be equally performed by light, proton, or electrical stimulation. In addition, the oxidation of this system allows the generation of a third metastable state.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Indolinooxazolidine: A Versatile Switchable Unit

et al. 2014

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“…Electroaddressability of the BOX unit was evidenced and clearly demonstrated to depend on the nature of the associated styryl moiety . Additionally, BOX possesses versatile switching properties, which ensure its photo‐ and acidoaddressability . DTE and BOX hybrid scaffold connected through a Z/E isomerizable ethylenic bridge exists under eight molecular states on demand, the sequence between the eight constitutionally isomeric forms is reminiscent to Argentinian tango.…”

Section: Absorption Wavelength Maxima Determined For Each Trans Statementioning

confidence: 99%

Dithienylethene‐Based Gated Ambichromic Dyads

Sanguinet

Delbaere

Berthet

et al. 2016

Advanced Optical Materials

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“…[6,7] DTEsare well known for their two thermally irreversible states,f atigue resistance, and excellent photochromic properties. [8] Additionally,the benzazolooxa-zolidine (BOX) part possesses versatile switching properties, which ensure its photo- [9,10] and acidoaddressability. [11] Electroaddressability of the BOX unit was also evidenced, subjectt o substitution on the indoline part and to the nature of the associateds tyrylic moiety.…”

Section: Introductionmentioning

confidence: 99%

Second‐Order Nonlinear Optical Properties of a Dithienylethene–Indolinooxazolidine Hybrid: A Joint Experimental and Theoretical Investigation

Bondu

Quertinmont

Rodriguez

et al. 2015

Chemistry A European J

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The nonlinear optical (NLO) properties of a double photochrome molecular switch are reported for the first time by considering the four trans forms of a dithienylethene-indolinooxazolidine hybrid. The four forms are characterized by means of hyper-Rayleigh scattering (HRS) experiments and quantum chemical calculations. Experimental measurements provide evidence that the pH- and light-triggered transformations between the different forms of the hybrid are accompanied by large variations of the first hyperpolarizability, which makes this compound an effective multistate NLO switch. Quantum chemical calculations conducted at the time-dependent Hartree-Fock and time-dependent DFT levels agree with the experimental data and allow a complete rationalization of the NLO responses of the different forms. The HRS signal of the forms with an open indolinooxazolidine moiety are more than one order of magnitude larger than that measured for the other forms, whereas the open/closed status of the dithienylethene subunit barely influences the dynamic NLO properties. However, extrapolation of the NLO responses to the static limit leads to univocally distinguishable intrinsic responses for three of the various forms. This hybrid system thus acts as a highly efficient multistate NLO switch for eventual exploitation in optical memory systems with multiple storage and nondestructive readout capacity.

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Photochromism of styryl cyanine dyes in solution

Cited by 26 publications

References 1 publication

Indolinooxazolidine: A Versatile Switchable Unit

Indolinooxazolidine: A Versatile Switchable Unit

Dithienylethene‐Based Gated Ambichromic Dyads

Second‐Order Nonlinear Optical Properties of a Dithienylethene–Indolinooxazolidine Hybrid: A Joint Experimental and Theoretical Investigation

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