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54842-92-1

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54842-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54842-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,4 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 54842-92:
(7*5)+(6*4)+(5*8)+(4*4)+(3*2)+(2*9)+(1*2)=141
141 % 10 = 1
So 54842-92-1 is a valid CAS Registry Number.

54842-92-1Relevant articles and documents

Unusual: Cis and trans architecture of dihydrofunctional double-decker shaped silsesquioxane and synthesis of its ethyl bridged π-conjugated arene derivatives

Walczak,Januszewski,Majchrzak,Kubicki,Dudziec,Marciniec

, p. 3290 - 3296 (2017)

Double-decker silsesquioxanes have gained a high reputation in many branches of chemistry and process development. In particular, catalytic processes that convert double-decker silsesquioxanes into important functional classes of fine chemicals are a central topic of contemporary organosilicon chemistry. Although the 9,19-di(hydro)octaphenyl double-decker silsesquioxane (DDSQ-2SiH) is known, we report its cis and trans structure and X-ray structure for the first time. The combination of DDSQ-2SiH in a known hydrosilylation reaction protocol with precise reaction time control (FT-IR in situ apparatus) allowed us to selectively assemble a series of previously unreported molecular double-decker silsesquioxanes with ethyl bridged π-conjugated arenes. These compounds were used as a molecular model to obtain their respective macromolecular hybrid analogues. The obtained compounds were characterized spectroscopically and their thermal parameters were also verified.

Synthesis and properties of chromophore-functionalized monovinylsilsesquioxane derivatives

?ak, Patrycja,Bo?t, Ma?gorzata,Dudziec, Beata,Grzelak, Magdalena,Januszewski, Rafa?,Marciniak, Bronislaw,Marciniec, Bogdan,Rachuta, Karolina

supporting information, p. 7659 - 7664 (2020/06/09)

A facile and efficient Pd-based Suzuki-Miyaura coupling reaction leading to mixed chromophores with styryl fragments, enabling their further application, is presented. We also disclose their use in the formation of monofunctionalized silsesquioxanes with a chromophore group covalently bound to a T8 core that have been prepared via a cross-metathesis reaction. These new materials were studied in terms of their photophysical and also thermal properties.

Controlled release of singlet oxygen using diphenylanthracene functionalized polymer nanoparticles

Martins,Farinha,Baleizao,Berberan-Santos

supporting information, p. 3317 - 3320 (2014/03/21)

Functionalized polymer nanoparticles react and store molecular oxygen for several weeks in the form of endoperoxides. On-demand controlled release of singlet oxygen by the particles is achieved by thermolysis. The Royal Society of Chemistry 2014.

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