9H-fluorene
Crystal structure of 9 (4 bromobutyl) 9H fluorene 9 carboxylic acid
... 9-(4-Bromobutyl)-9H-fluorene-9-carboxylic acid 5.0 g (0.024 mol) 9H-fluorene-9-carboxylic acid was dissolved into 120 ml THF at 273 K, a solution of n-butyllithium (2.5 M, 22 ml, 0.055 mol) in ...
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9 Pentafluorophenylmethylene 9H fluorene
... Data collection: P3 Software Nicolet, 1980; cell re®nement: P3 Software; data reduction: RDNIC Howie, 1980; programs used to solve structure: SHELXS97 Sheldrick, 1997; programs used to r[r] ...
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4′ (4 Methoxyphenyl) 1′ methyl 9H fluorene 9 spiro 3′ pyrrolidine 2′ spiro 2′′ indan 1′′,3′′ dione
... Fig. 1 shows a displacement ellipsoid plot of (I) with the atom-numbering scheme. (I) consists of a pyrrolidine ring (A) connected to an indan moiety (rings B and C) at C2, a fluorene moiety (rings D, E and F) at ...
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9,9 Bis(ethoxycarbonylethyl) 9H fluorene
... Fluorene and its polymeric derivatives have been used as laser-generating (Bazyl, 1986) or photo-active fluorescent materials (Johansson et al., 2001). However, insolubility is a common problem for fluorene ...
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2′,7′ Bis(4 methoxyphenyl)spiro[cyclopropane 1,9′ 9H fluorene]
... Spirobifluorene derivatives have attracted much attention due to their potential utility in organic light-emitting diodes (Muller et al., 2003). Spiro-linked molecules exhibit greater morphological stability and more ...
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2 [4 (tert Butylsulfanyl)benzyl] 9,9 diethyl 9H fluorene
... Fluorene-based materials are widely used in optoelectronic fields. The tert-butyl group is widely used as a thiol protective group in the synthesis of thiol-functionalized compounds (Greene & Wutz, 1999). We ...
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2,7 Dibromo 9,9 di n octyl 9H fluorene
... 2000) have been used to explain chain packing and the elec- trooptical properties of PFO. Recently, a triclinic crystal of 9,9- dioctylfluorene (McFarlane et al., 2005) grown from the melt revealed markedly different ...
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(η5 Cyclopentadienyl)(η6 9H fluorene)iron(II) hexafluorophosphate
... Data collection: SMART Bruker, 1997±1999; cell re®nement: SAINT Bruker, 1997±2003; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 1997a; programs used to re[r] ...
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9 n Butyl 9,9′ bi[9H fluorene]
... Two fluorene rings are linked together through their 9-position carbon atoms (C1 and ...two fluorene rings is ...stacked fluorene rings is ca ...
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9 Chloromethyl 9 [(9H fluoren 9 yl)methyl] 9H fluorene
... one fluorene ring. Two fluorene rings are linked together through a methylene carbon atom, and the dihedral angle between the two fluorene rings is ...stacked fluorene rings is ...
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Preparation of symmetrical and non-symmetrical fluorene sulfonamide scaffolds
... 7-Morpholino-N-(p-tolyl)-9H-fluorene-2-sulfonamide 22. A mixture of RuPhos Palladacycle (7 mg, 0.05 equiv.), RuPhos (5 mg, 0.05 equiv.), sodium tert-butoxide (29 mg, 0.30 mmol), 7- ...
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2′,7′ Dibromospiro[cyclopropane 1,9′ fluorene]
... special postion mm, so the asymmetric unit contains one- quater of a molecule. The 2,7-dibromo-9H-fluorene fragment and three spirocyclopropane C atoms lie on different planes, which are perpendicular to ...
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Characteristics and metabolic pathways of fluorene (FLU) degradation by strain Rhodococcus sp USTB C isolated from crude oil
... A fluorene-degrading strain named USTB-C was isolated from crude oil of production well in Dagang oil field, southeast of Tianjin, northeast ...of fluorene with an initial concentration of 100 mg L -1 in 23 ...
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PHOTOLYSIS OF FLUORENE AND 9-FLUORENONE A TOXIC ENVIRONMENTAL CONTAMINANT: STUDIES IN THE EFFECT OF SOLVENT AND INTENSITY OF THE SOURCE
... Photochemical reaction of fluorene and 9-fluorenone: The substrate (1g) was dissolved in the solvent (100 ml) in a beaker and 0.01 g of benzophenone was added as a sensitizer (in case of fluorene). Then the ...
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Novel Bacterial Strains Pseudomonas sp. and Bacillus sp. Isolated from Petroleum Oil Contaminated Soils for Degradation of Flourene and Phenanthrene
... Residual concentration of fluorene and phenanthrene was determined using HPTLC. High performance thin layer chromatography (HPTLC) is a cheap, effective and time saving analysis method as compared to other ...
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Laboratory Photochemistry of Covalently Bonded Fluorene Clusters: Observation of an Interesting PAH Bowl-forming Mechanism
... The present study shows results on a proto-typical lab- oratory example. As stated before, the presence of PAH cluster ions in space is still under debate. The detection of a specific PAH would be a major step forward ...
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Self trapping and excited state absorption in fluorene homo polymer and copolymers with benzothiadiazole and tri phenylamine
... some fluorene copolymers with tri-phenylamine which have been developed to tune both their emission and functionality ...on fluorene copolymers with ...
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(E) 2 Methoxy 9 (2 methoxy 9H xanthen 9 ylidene) 9H xanthene
... Data collection: CrysAlis PRO Oxford Diffraction, 2007; cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; programs used to solve structure: SHELXS97 Sheldrick, 2008; programs [r] ...
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Crystal structure of 9 butyl 3 (9 butyl 9H carbazol 3 yl) 9H carbazole
... In a round-bottomed flask (250 ml), iron(III) chloride (44.80 mmol) in chloroform (100 ml) was taken under nitrogen atmosphere. Then, 9-butyl-9H-carbazole (11.20 mmol) (Ramalingan et al., 2010) in chloroform (50 ...
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2,2′ Bi(9,9 diethylfluorene)
... The title compound (Scheme 1, Fig.1) crystallized with two crystallographically independent molecules (A and B) in the asymmetric unit, which differ mainly in the orientation of the lateral ethyl chains in each molecule. ...
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