The first highly selective turn "ON" fluorescent sensor for vanadyl (VO2+) ions: DFT studies and molecular logic gate behavior. (12th February 2018)

• Record Type: Journal Article
• Authors: Varadaraju, Chitra; Tamilselvan, G.; Enoch, I. V. Muthu Vijayan; Srinivasadesikan, V.; Lee, Shyi-Long; Selvakumar, P. Mosae
• Is Part Of: New journal of chemistry. Volume 42:Number 5(2018)
• Page Start: 3833
• Page End: 3839
• Publication Date: 2018-02-12
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj04434h
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : We report the first antipyrine-derived fluorescent chemosensor for highly selective and sensitive detection of vanadyl ions by an inhibited PET mechanism, with DFT studies. Abstract : Vanadium compounds exhibit anti-tumor properties and insulin-like activity, but an excess is toxic. Development of a selective fluorescent chemosensor for the detection of vanadyl ions has not been reported so far. For the first time, we have reported an effective fluorescent chemosensorC1 for selective recognition and detection of vanadyl ions.C1 was evaluated as a turn "ON" fluorescent chemosensor for vanadyl ions (VO 2+ ) based on a photoinduced electron transfer (PET) mechanism. The association constant for the complexC1 –VO 2+ was found to be 4.19 × 10 4 M −1 .C1 also behaves as a NOT molecular logic gate where H + and VO 2+ were given as inputs. The proposed binding mode betweenC1 and vanadyl ions was explained using DFT calculations.