نتایج جستجو برای: Charge-transfer complexation

تعداد نتایج: 421391  

Journal: :iranian journal of pharmaceutical sciences 0
sinyeofori a. brown faculty of pharmacy, university of uyo, akwa ibom state, nigeria ekaete i akpabio faculty of pharmacy, university of uyo, akwa ibom state, nigeria paul a akpa faculty of pharmaceutical sciences, university of nigeria, nsukka, enugu state, nigeria petra o nnamani faculty of pharmaceutical sciences, university of nigeria, nsukka, enugu state, nigeria bertrand c akabuogu faculty of pharmaceutical sciences, university of nigeria, nsukka, enugu state, nigeria godswill c onunkwo faculty of pharmaceutical sciences, university of nigeria, nsukka, enugu state, nigeria

the complex formed as a consequence of the interaction between the electron-acceptor p-chloranilic acid and an electron donor tamoxifen citrate was employed in the assay of the drug in pure powder and tablets. chloranilic acid was found to form a charge-transfer complex in a 1:1 stoichiometric ratio, with tamoxifen citrate. the wavelength of maximum absorption for the complex was found to be 55...

Journal: :journal of sciences islamic republic of iran 0

the charge-transfer complexation reaction between iodine and dibenzo- 18-crown- 6 (db18c6) has been studied spectrophotometrically in chloroform solution at different temperatures. the resulting donor-acceptor complex was formulated as (db 18c6…i )i . the spectrophotometric results , as well as the conductivity measurements, indicated that the gradual release of tiiodide ion from its contact io...

The charge-transfer complexation reaction between iodine and dibenzo- 18-crown- 6 (DB18C6) has been studied spectrophotometrically in chloroform solution at different temperatures. The resulting donor-acceptor complex was formulated as (DB 18C6…I )I . The spectrophotometric results , as well as the conductivity measurements, indicated that the gradual release of tiiodide ion from its contac...

1999
M. R. Resmi Shuguang Ma T. Pradeep

m 0 7 r m a d s a t p f t u 4,4*-Diphenyltetrathiafulvalene (DPTTF) capped gold nanoarticles of 3to 5-nm diameter have been prepared and their hermal stability has been investigated by variable temperature T–IR spectroscopy. The DPTTF molecules at the cluster surface ndergo charge-transfer complexation with C60 to form Au/ PTTF.C60. Direct evidence of complexation is observed in the -ray photoe...

Journal: :American Journal of Pharmacy And Health Research 2018

2006
Ari Laiho Robin H. A. Ras Sami Valkama Janne Ruokolainen Olli Ikkala

Self-assembly allows new opportunities to control the morphology and properties of fullerenebased materials. By using the electron-accepting underivatized C60 and electron-donating pyridine groups of a polystyrene-block-poly(4-vinylpyridine), PS-block-P4VP, we here show the first example that charge-transfer complexation between fullerenes and block copolymers can essentially modify the self-as...

Journal: :Chemical communications 2013
Junlong Geng Li Zhou Bin Liu

We herein find that graphene oxide (GO) can enhance the fluorescence signal of conjugated polyelectrolytes (CPEs) with charge transfer characteristics under certain conditions, which is due to a relative hydrophobic environment of CPEs upon complexation with GO.

Journal: :Chemical communications 2013
Fei Li Qiao Song Liulin Yang Guanglu Wu Xi Zhang

We have fabricated supra-amphiphiles by charge-transfer complexation of azulene-based amphiphiles and pyrene in water, and the self-assembled nanostructures can reversibly change between cylindrical micelles and disklike nanosheets in response to interaction with guest molecules.

Journal: :Bulletin of the Chemical Society of Japan 1972

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