Time：Dec. 22 2010 AM10:00
Location：Meeting Room of state key labratory of molecular reaction dynamics Building on Floor 3Dr. Yang Ming
Max-Born-Institut (MBI), Germany Abstract：
To study nucleobase pairing in DNA, hydrogen bond formation of the nucleobases themselves are often analyzed. We investigate the N-H stretching vibrations of both hydrogen-bonded Adenine-Thymine(A-T) oligomer film and Guanosine-Cytidine (G-C) base pairs in chloroform solution with linear and ultrafast nonlinear infrared (IR) spectroscopy. By employing Two-Dimensional IR spectroscopy ,we discern the overlapping broad peaks and map the energy transfer between two vibration oscillators in A-T oligomer. In G-C solution the life time of the vibrations are measured and the energy transfer is also mapped.
Contact：Wei Zhuang, Xueming Yang