A new 2D Cu(II)-MOF generated from a fluorene-based ligand and Cu(NO(3))(2) was reported. It is an interesting visual colorimetric anion sensor. In addition, it can completely separate Cl(-)/Br(-), Br(-)/I(-) and SCN(-)/N(3)(-) anions under ambient conditions.

Genes involved in the degradation of fluorene to phthalate were characterized in the fluorene degrader Terrabacter sp. strain DBF63. The initial attack on both fluorene and 9-fluorenone was catalyzed by DbfA to yield 9-fluorenol and 1,1a-dihydroxy-1-hydro-9-fluorenone, respectively. The FlnB protein exhibited activities against both 9-fluorenol and 1,1a-dihydroxy-1-hydro-9-fluorenone to produce...

Previous reports that radioactivity was bound to rat liver DNA in vivo after administration of 2-acetylaminofluorene (AAF)-9-14C were confirmed. In addition, administration of several other AAF derivatives, namely N-hydroxy-AAF-9 -14C, N-acetoxy-AAF-914C, and the glucuronide of N-hydroxyAAF-9)4C, led to the binding of higher levels of radioactivity to rat liver ribosomal RNA and DNA. Maximum le...

The selective recognition/extraction of semiconducting (sem)- and metallic (met)-single-walled carbon nanotubes (SWNTs) is still a great challenge in the science and technology of carbon nanotubes because their selective synthesis is still difficult. Poly(9,9-dioctyl-fluorene-2,7-diyl) (2C8-PF) and its derivatives are widely used polymers in carbon nanotube science and technology since they onl...

1. Acylation of 2-(N-hydroxyacetamido)fluorene and several other aromatic hydroxamic acids by carbamoyl phosphate was studied and compared with the acylating activity of acetyl-CoA. Acetyl phosphate was also studied. 2. The carbamoylation reaction had a pH optimum of 4.5. The reaction had a lag period of 1h and was then linear for 4h. This linearity ranged between 0.5mm- and 8mm-carbamoyl phosp...

Mycobacterium sp. strain BB1 was isolated from a former coal gasification site. It was able to utilize phenanthrene, pyrene, and fluoranthene as sole sources of carbon and energy and to degrade fluorene cometabolically. Exponential growth with solid phenanthrene, pyrene, and fluoranthene was obtained in fermentor cultures. The growth rates were 0.069, 0.056, and 0.040 h-1, respectively. Several...

The series: 9-methyl, 9-isopropyl, 9-cyclohexyl, 9,9-dimethyl, 9,9-diethyl, and the unsubstituted parent 2,7-bis (acetamido) fluorene were synthesized from the corresponding 9-substituted fluorenes. The two routes employed consisted of either (1) dinitration, reduction to the diamine, and diacetylation, or (2) Friedel-Crafts diacylation, then rearrangement via the Schmidt reaction. This provide...