the National Natural Science Foundation of China(Grant No.10774039);the Development Program in Science and Technology of Henan Province(No.102300410114);Henan University of Science and Technology for Young Scholars(No.2009QN0032)for their support of this work.
Quantum chemistry calculations have been performed using Gaussian03 program to compute optimized geometry,harmonic vibrational frequency along with intensities in IR and Raman spectra at RHF/6-31++G^(**)and B3LYP/6-31...