Trinitro fluorenones

It reacts rapidly with oxygen forming a white polymeric solid with trinitro-fluorenone and trinitrobenzene, very weak n-complexes were formed, which appear to be stable only in the solid phase. Tetracyanoethylene does not add at the furan moiety but reacts with the cyclooctatetraene part of the molecule to give 355. The stability of 353 is such that prolonged heating with tributylphosphine has no effect. 

Charge-transfer polymers were commercialized by IBM Corporation since about 1968 in xerographic copiers A drum covered by trinitro-fluorenone-polyvinyl carbazole polymer mixed with trinitrofluore-none replaced the expensive Se drum. 

CA 40, 7182(1946)(Complex with trinitro-fluorenone) 9) CondChemDict(196l),... 

Trinitro-9-fluorenone [129-79-3] M 315.2, m 176 . Crystd from nitric acid/water (3 1), washed with water and dried under vacuum over P2O5, or recrystd from dry benzene. 

Trinitro-9-fluorenone Xylene (xylol or dimethyl benzene)... 

Phthalate esters C(H (COOR)2 are well-characterised, aoderately polar liquid phases [8]. As might be expected, the polarity of the phases declines as the alkyl (R) group increases in size, while their volatility decreases. Hi volatility compared to other available liquid phases has reduced their importance in recent years. Tetraunsaturated hydrocarbons and aromatic hydrocarbons (electron-donor solutes) Iqf... 

A different mechanism is that of charge transfer, of which there are many examples based, in particular, on metallomesogens [14]. In these cases, mesophases can be induced by adding the electron-poor TNF (2,4,7-trinitro-9-fluorenone) and Fig. 9 shows Pd mesogen 4, which shows a particular type of SmA phase when TNF is added [15]. 

Materials that exhibit photoconductivity and/or electrooptical response can be found in large numbers among molecular glasses (Fig. 3.40). Dihydropyridines with Tg 25 C and low tendency of crystallization have been used (e.g., 2BNCM, 73), adding only a small fraction of a binding polymer (<10%), and 2,4,7-trinitro-9-fluorenone (TNF) as a sensitizer [310]. A common strategy is... 

Figure 2.67a R = R = Me) displays solvoluminescence. These compounds also react with acceptor molecules or metal ions M+ (M+ = Ag+, Tl+). Structures of [Au3(MeOC NMe)3] with the acceptors 2,4,7-trinitro-9-fluorenone and 2,3,4,7-tetranitro-9-fluor-enone consist of columns of planar molecules showing the pattern... 

Finally, secondary Au- -C bonds have been found in some adducts of the triangular gold(I) complex [Au3(MeN=COMe)3], where they function as electron donors, with nitro-9-fluorenones as acceptors. The solid-state structures of [Au3(MeN=COMe)3]-[2,4,7-trinitro-9-fluorenone] and [Au3(MeN=COMe)3]-[2,4,5,7-tetranitro-9-fluorenone] [50] consist of one-dimensional arrays in which the planar gold(I) trimers and the nearly planar organic molecules are interleaved with the gold trimers, making face-to-face contact with the nitro-aromatic portion of... 

Figure 5.27 1-D polymer of (a) [Au3(MeN=COMe)3]-[2,4,5,7-tetranitro-9-fluorenone] (b) [Au3(MeN=COMe)3]-[2,4,7-trinitro-9-fluorenone] showing the Au- -C interactions.

Another interesting characteristic of the trinuclear [Au3(CH3N = COR)3] (R = Me, Et) complexes is that they can act as electron donors with organic acceptor molecules such as nitro-9-fluorenones [46]. Thus, they form adducts with 2,4,7-trinitro-9-fluorenone (deep yellow and red R=Me, Et, respectively), 2,4,5,7-tetranitro-9-fluorenone (red R = Me), 2,7-dinitro-9-fluorenone (red R = Et). The solid state structures of the complexes formed with [Au3(CH3N = COMe)3] and 2,4,7-trinitro-9-fluorenone or 2,4,5,7-tetranitro-9-fluorenone consist of planar gold(I) trimers interleaved with the nitro-9-fluorenones to form columns in the crystal. The distances between the faces of both portions indicate that interactions occur between the gold atoms, rich in electronic density, and the nitroaromatic portion of the electron acceptor. The difference between them stems from the greater complexity of the... 

Dimethyl-9-fluorenone and derivs 5 D1339 2,4,7-trinitro-l,3-dimethyl-9-fluorenone 5D1339... 

Other 7r-complexing reagents are 1,3,5-trinitrobenzene and 2,4,7-trinitro-9-fluorenone (1). The crystalline adducts are usually formed in ethanol, glacial acetic add, or toluene solution and recrystallised from similar solvents. They are useful both for the characterisation and also for the isolation of appropriately reactive aromatic hydrocarbons. 

Aroyl- benzoic acid °C Compound with 2,4,7-trinitro-9-fluorenone Compound with 1,3,5-trinitro-benzene Styphnate Other derivatives °c... 

Up to 10 mM 30nAmM 1 2-3 min 2,4,7-Trinitro-9-fluorenone (TNF) was electrochemically polymerised on the carbon surface to avoid interferences. Flow-measurements. 

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