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933037-93-5

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933037-93-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 933037-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,3,0,3 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 933037-93:
(8*9)+(7*3)+(6*3)+(5*0)+(4*3)+(3*7)+(2*9)+(1*3)=165
165 % 10 = 5
So 933037-93-5 is a valid CAS Registry Number.

933037-93-5Relevant articles and documents

Synthesis, photophysical, and two-photon absorption properties of elongated phosphane oxide and sulfide derivatives

Alain-Rizzo, Valerie,Drouin-Kucma, Delphine,Rouxel, Cedric,Samb, Issa,Bell, Jeremy,Toullec, Patrick Y.,Michelet, Veronique,Leray, Isabelle,Blanchard-Desce, Mireille

scheme or table, p. 1080 - 1091 (2011/10/11)

A series of rod-shaped and related three-branched push-pull derivatives containing phosphane oxide or phosphane sulfide (PO or PS)a-as an electron-withdrawing group conjugated to electron-donating groups, such as amino or ether groups, with a conjugated rod consisting of arylene-vinylene or arylene-ethynylene building blocksa-were prepared. These compounds were efficiently synthesized by a Grignard reaction followed by Sonogashira coupling. Their photophysical properties including absorption, emission, time-resolved fluorescence, and two-photon absorption (TPA) were investigated with special attention to structure-property relationships. These fluorophores show high fluorescence quantum yields and solvent-dependent experiments reveal that efficient intramolecular charge transfer occurs upon excitation, thereby leading to highly polar excited states, the polarity of which can be significantly enhanced by playing on the end groups and conjugated linker. Rod-shaped and related three-branched systems show similar fluorescence properties in agreement with excitation localization on one of the push-pull branches. By using stronger electron donors or replacing the arylene-ethynylene linkers with an arylene-vinylene one induces significant redshifts of both the low-energy one-photon absorption and TPA bands. Interestingly, a major enhancement in TPA responses is observed, whereas OPA intensities are only weakly affected. Similarly, phosphane oxide derivatives show similar OPA responses than the corresponding sulfides but their TPA responses are significantly larger. Finally, the electronic coupling between dipolar branches promoted by common PO or PS acceptor moieties induces either slight enhancement of the TPA responses or broadening of the TPA band in the near infrared (NIR) region. Such behavior markedly contrasts with triphenylamine-core-mediated coupling, which gives evidence for the different types of interactions between branches.

Synthesis and photophysical properties of new conjugated fluorophores designed for two-photon-excited fluorescence

Mongin, Olivier,Porres, Laurent,Moreaux, Laurent,Mertz, Jerome,Blanchard-Desce, Mireille

, p. 719 - 722 (2007/10/03)

(equation presented) Novel elongated push-push fluorophores (e.g., 9) were synthesized by 2-fold Sonogashira or Wittig-Horner reactions. Modulation of the length and topology of the conjugated connectors allows tuning of their photophysical properties. In

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