Bi, Dongqin’s team published research in Nano Energy in 23 | CAS: 159-62-6

Nano Energy published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, COA of Formula: C25H16O.

Bi, Dongqin published the artcileFacile synthesized organic hole transporting material for perovskite solar cell with efficiency of 19.8%, COA of Formula: C25H16O, the publication is Nano Energy (2016), 138-144, database is CAplus.

The exploration of alternative mol. hole-transporting materials (HTMs) specifically for high performance perovskite solar cells (PSCs) is a relatively recent research area. Aiming for further increasing the ‘efficiency-cost ratio’ of PSCs, we developed a spiro[fluorene-9,9′-xanthene] based HTM (X59) via two-step synthesis from com. precursors for perovskite solar cells (PSCs) that works as effectively as the well-known HTM-Spiro-OMeTAD-based device under the same conditions. The mol. structure was analyzed by X-ray crystallog. indicating a similar packing regime as for Spiro-OMeTAD. An impressive PCE of 19.8% was achieved by using X59 as HTM in PSC, which can compete with the record PCE of 20.8% by using the state-of-the-art-HTM Spiro-OMeTAD (Tress et al., 2016) [1]. The optimized devices employing X59 as HTM exhibited minimized hysteresis, excellent reproducibility and reasonable stability under dark and dry conditions. The present finding highlights the potential of spiro-type HTM for high performance PSCs and paves the way to a much deceased fabrication cost for potential commercialization of perovskite solar panels.

Nano Energy published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, COA of Formula: C25H16O.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Gilman, Henry’s team published research in Journal of Organic Chemistry in 23 | CAS: 159-62-6

Journal of Organic Chemistry published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Recommanded Product: Spiro[fluorene-9,9′-xanthene].

Gilman, Henry published the artcileOxygen-containing heterocycles as liquid scintillator solutes, Recommanded Product: Spiro[fluorene-9,9′-xanthene], the publication is Journal of Organic Chemistry (1958), 361-2, database is CAplus.

cf. C.A. 52, 5424h. Derivatives of dibenzofuran (I), dibenzo-p-dioxin (II) and xanthene were screened as liquid scintillator solutes and the primary-solute relative pulse heights relative to 2,5-diphenyloxazole (arbitrary value 1.00) are tabulated. The biphenyl linkage in I presumably makes all its derivatives superior to corresponding II derivatives The results suggest that the introduction of MeO and dialkylamino groups increases the relative pulse height by shortening the lifetime of the excited state and providing a greater probability that fluorescence will occur before a radiationless transition (C.A. 52, 5382d). The values tabulated indicated that further work on II is promising only with 2-substituted derivatives Cu bronze (4 g.) and 4.0 g. 1-iododibenzo-p-dioxin heated 5 hrs. at 250° (oil bath), the cooled pulverized mixture extracted with hot C6H6 and the concentrated extract diluted with alc. yielded 22% 1,1′-bis(dibenzo-p-dioxin), m. 217-19°. Cu bronze (5 g.) and 4.0 g. 2-iododibenzo-p-dioxin heated 4 hrs. at 240-50°, the cooled pulverized mixture extracted with hot C6H6, the extract chromatographed on Al2O3, the eluate diluted with alc. and the product recrystallized (AcOH) yielded 22% 2,2′-bis(dibenso-p-dioxin), m. 227-30°. Nitrous fumes slowly bubbled 2.5 hrs. through 4.0 g. 2-acetamidodibenzo-p-dioxin in 130 ml. AcOH and 20 ml. Ac2O at 10°, the yellow-green solution poured into 1 l. ice-H2O, the air-dried solid stirred 8 hrs. in 200 ml. dry C6H6 and kept 8 hrs. at room temperature, warmed 1 hr. and the C6C6 evaporated, the concentrated solution chromatographed on Al2O3 and the fraction recrystallized (alc.) gave 16% 2-phenyldibenzo-p-dioxin, m. 108-10°, with characteristic 1,2,4-tri-, 1,2-di-, and monosubstitution bands in the infrared spectrum. Excess PhCH2MgCl added in 15 min. with stirring and gentle refluxing to 5.76 g. 2-benzoyldibenzo-p-dioxin in 100 ml. Et2O, the mixture refluxed 2 hrs., hydrolyzed with saturated aqueous NH4Cl, the dried (Na2SO4) Et2O layer evaporated and the residue crystallized (alc.-H2O) 3 times yielded 60% 1-(2-dibenzo-p-dioxinyl)-1,2-diphenylethanol (III), m. 141-2°. III (3.5 g.) and 15 ml. Lucas reagent (cf. Crawford and Nelson, C.A. 40, 14848) refluxed 2 hrs. in 45 ml. C6H6, the washed (dilute aqueous Na2CO3) C6H6 layer evaporated, the oily residue boiled with ligroine (b. 60-70°) and the solid product crystallized (alc.-H2O) 3 times yielded 33% 2-(α-phenylstyryl)dibenzo-p-dioxin. The use of Lucas reagent renders isolation of III unnecessary since dehydration was effected conveniently using crude carbinol solutions in C6H6.

Journal of Organic Chemistry published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Recommanded Product: Spiro[fluorene-9,9′-xanthene].

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Chen, Qi’s team published research in Macromolecules (Washington, DC, United States) in 44 | CAS: 159-62-6

Macromolecules (Washington, DC, United States) published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Name: Spiro[fluorene-9,9′-xanthene].

Chen, Qi published the artcileSpiro(fluorene-9,9′-xanthene)-Based Porous Organic Polymers: Preparation, Porosity, and Exceptional Hydrogen Uptake at Low Pressure, Name: Spiro[fluorene-9,9′-xanthene], the publication is Macromolecules (Washington, DC, United States) (2011), 44(20), 7987-7993, database is CAplus.

Preparation and sorption properties of spiro(fluorene-9,9′-xanthene)-based porous organic polymers (SPOPs) are reported. Using a same linker monomer, the micropore size and sp. surface area in SPOPs are tunable by variation of the structure of core building blocks. According to the obtained nitrogen physisorption isotherms, the Brunauer-Emmett-Teller sp. surface area for these polymers varies between 750 and 1020 m2/g. Copolymer SPOP-3 containing spiro(fluorene-9,9′-xanthene) and spirobifluorene with 1:1 ratio, prepared by Suzuki coupling polymerization, possesses 2.22 weight% hydrogen adsorption capacity at 1.0 bar and 77 K, which not only is the exceptional uptake capacity for hydrogen at low pressure among the best reported results for organic polymers but also can be competitive with other kinds of porous materials such as activated carbons and metal-organic frameworks.

Macromolecules (Washington, DC, United States) published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Name: Spiro[fluorene-9,9′-xanthene].

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Chu, Zengze’s team published research in Macromolecular Rapid Communications in 30 | CAS: 159-62-6

Macromolecular Rapid Communications published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, SDS of cas: 159-62-6.

Chu, Zengze published the artcileSynthesis of Dendritic Oligo-Spiro(fluorene-9,9′-xanthene) Derivatives with Carbazole and Fluorene Pendants and their Thermal, Optical, and Electroluminescent Properties, SDS of cas: 159-62-6, the publication is Macromolecular Rapid Communications (2009), 30(20), 1745-1750, database is CAplus and MEDLINE.

Two novel spiro-configured ter(arylene-ethynylene) derivatives, TSF-Cz and TSF-F, were designed and synthesized using spiro(fluorene-9,9′-xanthene) (SFX) as building blocks, introducing a hole-transporting carbazole and a fluorene chromophore as the peripheral functional group into the backbone through an O atom. The 2 well-defined oligomers possess good solubility, film-forming quality, and high Tg‘s at 140 and 126°, resp. These oligomers exhibit blue photoluminescence (PL) emission both in solution and solid states. The double-layered devices fabricated using the 2 materials as the emitter show a sky-blue emission with a brightness and a current efficiency of 7,613 cd m-2 and 1.11 cd A-1 for TSF-Cz, and 1,507 cd m-2 and 0.36 cd A-1 for TSF-F, resp.

Macromolecular Rapid Communications published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, SDS of cas: 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Wang, Sha-Sha’s team published research in Nanoscale in 10 | CAS: 159-62-6

Nanoscale published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C24H29N5O3, Computed Properties of 159-62-6.

Wang, Sha-Sha published the artcileVariable segment roles: modulation of the packing modes, nanocrystal morphologies and optical emissions, Computed Properties of 159-62-6, the publication is Nanoscale (2018), 10(28), 13310-13314, database is CAplus and MEDLINE.

A review. Three isomers were prepared by covalently grafting carbazole (Cz) onto spiro[fluorene-9,9′-xanthene] (SFX) at different positions. Due to the complicated and variable roles of mol. segments, an evolution of the corresponding mol. packing mode was realized, accompanied by the change of nanocrystal morphol. and photoluminescence properties.

Nanoscale published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C24H29N5O3, Computed Properties of 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Park, Gyoosoon’s team published research in Bulletin of the Korean Chemical Society in 31 | CAS: 159-62-6

Bulletin of the Korean Chemical Society published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Product Details of C25H16O.

Park, Gyoosoon published the artcileH-bonding controls the regioselectivities on the acid-catalyzed reaction of fluorenone with phenol derivatives, Product Details of C25H16O, the publication is Bulletin of the Korean Chemical Society (2010), 31(7), 1837-1838, database is CAplus.

The usefulness of the acid-catalyzed reaction of fluorenone with phenol derivatives and the regio-control elements in the process were studied. All ab initio calculations were also carried out. The hydrogen-bonding decisively reveals in the ortho-product. Thus a relative stability of PD-a-OH attributes to intramol. hydrogen-bonding.

Bulletin of the Korean Chemical Society published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Product Details of C25H16O.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zuo, Zongyan’s team published research in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 6 | CAS: 159-62-6

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C13H15NO6S, SDS of cas: 159-62-6.

Zuo, Zongyan published the artcileSpiro-substitution effect of terfluorenes on amplified spontaneous emission and lasing behaviors, SDS of cas: 159-62-6, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2018), 6(16), 4501-4507, database is CAplus.

In order to investigate the inherent differences between spirofluorenes, two typical spirocycle models, spiro[fluorene-9,9′-xanthene] (SFX) and spirobiflourene (SBF), were chosen to construct four spiro-terfluorenes (DSFX-OSFX, DSBF-OSFX, DOSFX-SFX and DOSFX-SBF) to investigate the effect of spirocycle substitution on photophys. and stimulated emission properties. The terfluorenes have similar absorption and photoluminescence properties. While the DOSFX-SBF film displays the best ASE properties with a threshold of 1.81 μJ cm-2, the lasing threshold of the 1-D DFB laser based on DOSFX-SBF is lowered to 0.85 μJ cm-2. These results indicate that the type of spirofluorene has a dramatic influence on stimulated emission properties and spiro terfluorenes have potential applications in organic lasers.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C13H15NO6S, SDS of cas: 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Park, Gyoosoon’s team published research in Bulletin of the Korean Chemical Society in 31 | CAS: 159-62-6

Bulletin of the Korean Chemical Society published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Product Details of C25H16O.

Park, Gyoosoon published the artcileH-bonding controls the regioselectivities on the acid-catalyzed reaction of fluorenone with phenol derivatives, Product Details of C25H16O, the publication is Bulletin of the Korean Chemical Society (2010), 31(7), 1837-1838, database is CAplus.

The usefulness of the acid-catalyzed reaction of fluorenone with phenol derivatives and the regio-control elements in the process were studied. All ab initio calculations were also carried out. The hydrogen-bonding decisively reveals in the ortho-product. Thus a relative stability of PD-a-OH attributes to intramol. hydrogen-bonding.

Bulletin of the Korean Chemical Society published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Product Details of C25H16O.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zuo, Zongyan’s team published research in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 6 | CAS: 159-62-6

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C13H15NO6S, SDS of cas: 159-62-6.

Zuo, Zongyan published the artcileSpiro-substitution effect of terfluorenes on amplified spontaneous emission and lasing behaviors, SDS of cas: 159-62-6, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2018), 6(16), 4501-4507, database is CAplus.

In order to investigate the inherent differences between spirofluorenes, two typical spirocycle models, spiro[fluorene-9,9′-xanthene] (SFX) and spirobiflourene (SBF), were chosen to construct four spiro-terfluorenes (DSFX-OSFX, DSBF-OSFX, DOSFX-SFX and DOSFX-SBF) to investigate the effect of spirocycle substitution on photophys. and stimulated emission properties. The terfluorenes have similar absorption and photoluminescence properties. While the DOSFX-SBF film displays the best ASE properties with a threshold of 1.81 μJ cm-2, the lasing threshold of the 1-D DFB laser based on DOSFX-SBF is lowered to 0.85 μJ cm-2. These results indicate that the type of spirofluorene has a dramatic influence on stimulated emission properties and spiro terfluorenes have potential applications in organic lasers.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C13H15NO6S, SDS of cas: 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Cheng, Ming’s team published research in Solar RRL in 1 | CAS: 159-62-6

Solar RRL published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Quality Control of 159-62-6.

Cheng, Ming published the artcileA Perylenediimide Tetramer-Based 3D Electron Transport Material for Efficient Planar Perovskite Solar Cell, Quality Control of 159-62-6, the publication is Solar RRL (2017), 1(5), n/a, database is CAplus.

A perylenediimide (PDI) tetramer-based three dimensional (3D) mol. material, termed SFX-PDI4, has been designed, synthesized, and characterized. The low-lying HOMO and LUMO energy levels, high electron mobility and good film-formation property make it a promising electron transport material (ETM) in inverted planar perovskite solar cells (PSCs). The device exhibits a high power conversion efficiency (PCE) of 15.3% with negligible hysteresis, which can rival that of device based on PC61BM. These results demonstrate that three dimensional PDI-based mol. materials could serve as high performance ETMs in PSCs.

Solar RRL published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Quality Control of 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem