3587-05-1Relevant academic research and scientific papers
Tetraphenylfluorophosphorane
Brown, Stephen J.,Clark, James H.
, p. 1256 - 1257 (1983)
Tetraphenylfluorophosphorane can exist in at least three different forms including an ionic monomer, a molecular monomer, and a dimer.
A simple and efficient phosphorescent probe for iodide-specific detection based on crystallization-induced phosphorescence of organic ionic crystals
Chen, Guilin,Zhou, Jin,Feng, Hui,Feng, Feifei,Xu, Pengfei,Pan, Saifei,Xu, Jing,Qian, Zhaosheng
supporting information, p. 43 - 47 (2019/01/04)
It is very challenging to develop luminescent detection methods for iodide ions due to their significant fluorescence quenching of general fluorophores induced by the heavy-atom effect. Herein, we reveal a unique crystallization-induced bright phosphorescence of tetraphenylphosphonium iodide (TPP I) and develop a novel time-gated detection method for iodide ions to minimize the autofluorescence from complex biological samples. Both the involvement of heavy iodide ion and accessible ionic interaction-induced organic crystals contribute to the accomplishment of a very high phosphorescence quantum yield (0.42) for TPP I. This specific iodide-triggered bright organic phosphorescence enables the development of a novel time-gated detection method for iodide ions in the luminescence turn-on manner and further offers an opportunity to establish a facile test strip for the visual detection of iodide ions based on solid-state phosphorescence on a solid substrate. Excellent performance of this probe in imaging iodide in live cells and intriguing use in double encryption illustrate the versatile and broad application prospects of highly efficient organic ionic crystals in various areas.
Phenylation of Organic Derivatives of Mercury, Silicon, Tin, and Bismuth with Pentaphenylantimony and Pentaphenylphosphorus
Sharutin,Sharutina,Senchurin,Egorova,Ivanenko,Petrov
, p. 202 - 203 (2007/10/03)
Pentaphenylantimony and -phosphorus react with arylmercury chlorides in toluene at room temperature to give diaryl derivatives of mercury in yields of up to 95%. The reactions of pentaphenylantimony and -phosphorus with silicon and tin halides involve ary
Tetra-arylfluorophosphoranes
Brown, Stephen J.,Clark, James H.,Macquarrie, Duncan J.
, p. 277 - 280 (2007/10/02)
A number of novel tetra-arylfluorophosphoranes have been synthesised.The most stable form of these compounds is the ionic form PR4+F- (R=aryl) although various other forms have been shown to exist including a molecular monomer PR4F and a dimer PR4+PR4F2-.The i.r. spectra of the ionic forms reveal strong P+...F- interactions.The fluorides are prepared via the hydrogendifluorides PR4+HF2- which contain distorted HF2- ions.
Dehydrohalogenation process
-
, (2008/06/13)
Aliphatic and cycloaliphatic halogen compounds containing a halogen atom and a hydrogen atom attached to adjacent carbon atoms are dehydrohalogenated to the corresponding unsaturated compounds by contact with a quaternary ammonium fluoride or quaternary phosphonium fluoride.
Vibrational frequencies and intramolecular forces in anionic tin-halogen complexes and related species
Wharf,Shriver
, p. 914 - 925 (2008/10/08)
Far-infrared and Raman spectra are reported for solids containing the SnX62- (X = Cl, Br, I) and SnX3- (X = F, Cl, Br, I) ions in combination with large monopositive cations. These results include the first complete report of infrared- and Raman-active fundamentals for SnF3-, SnI3-, and SnI62-. Normal-coordinate vibrational analysis was performed for these complexes and for SnX4 (X = Cl, Br, I) under a uniform set of approximations. For a series of compounds containing the same halide it is found that the primary stretching force constants are approximately proportional to the metal oxidation state divided by the coordination number. Theoretical values for the force constants were calculated using an ionic model. These reproduce the reduction in force constant which is observed upon going from SnX4 to SnX62-.
