Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 1, No.3, December 2012 _________________________________________________________________________________

نویسنده

  • J. Thipperudrappa
چکیده

The effect of three aromatic amines namely aniline (AN), dimethyl aniline (DMAN) and diethyl aniline (DEAN) on emission properties of a coumarin derivative 6-methyl-3azidoacetyl coumarin (6M3AAC) in acetonitrile was studied by means of steady state fluorescence spectroscopy. The quenching of fluorescence intensity was observed in the presence of amines. The quenching process was characterized by Stern-Volmer (S-V) plots which display usual linear aspect. The experimental data was rationalized in terms of the Marcus theory on the electron transfer reactions. The bimolecular quenching constants and free energy change evaluated by RehmWeller relationship fit well with the data for other coumarin-amine systems.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 1, No.1, October 2012 _________________________________________________________________________________

In this article, Adomian decomposition method is successfully applied to find an approximate analytical solution of a Stefan problem subject to periodic boundary condition. By using initial and boundary conditions, the explicit solutions of the temperature distribution and the position of moving interface are evaluated and numerical results are depicted graphically. The method performs extremel...

متن کامل

Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 2, No.2, February 2013 _________________________________________________________________________________

Test compression has become a de-facto technique in VLSI testing. Test data volume is a serious concern for the semiconductor testing because it not only prolongs the testing time of the integrated circuits (Ics), but also raises the tester memory depth requirements and excessive capture power at-speed testing has also become a serious concern. So it is important to co-optimize test power and c...

متن کامل

Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 2, No.6, June 2013 _________________________________________________________________________________

The paper presents what a Distributed system is. It also overviews the issues to be taken into consideration for developing the strategies for load balancing. Strategies for various types of Distributed systems are discussed. Each strategy considers the most economical transfer policy, selection policy, location policy, information policy. The paper concludes with comparison of various strategi...

متن کامل

Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 1, No.3, December 2012 _________________________________________________________________________________

Electric Discharge Drill Machine (EDDM) is a spark erosion process to produce micro holes in conductive materials. This process is widely used in aerospace, medical, dental and automobile industries. As for the performance evaluation of the Electric discharge drilling machine it is very necessary to study the process parameters of machine tool. In this research paper a brass rod 2 mm diameter w...

متن کامل

Journal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 1, No.1, October 2012 _________________________________________________________________________________

Energy crisis has been a key problem affecting overall economic progress in different countries of the world. The problem is far more acute in the perspective of developing economies like India where there is significant pressure on the available natural sources of energy. To meet this severity of daily life requirement, we must shift our focus towards alternative sources of energy which posses...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014