Theories and Quantum Chemical Calculations of Linear and Sum‐Frequency Generation Spectroscopies, and Intramolecular Vibrational Redistribution and Density Matrix Treatment of Ultrafast Dynamics

Sum frequency generation vibrational spectroscopy (SFG-VS) for complex molecular surfaces and interfaces: Spectral lineshape measurement and analysis plus some controversial issues

“…Over the more than three decades since the inception of the surface SFG-VS in the early 1980s [3][4][5], there have been many review articles and a most recent monograph by the founder of the field [6] on the fundamentals theory [7][8][9][10][11][12][13][14][15][16], methods and technical developments [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], specific applications to various systems , and progresses reports [56][57][58][59][60][61][62] of SFG-VS on the studies of the structure and dynamics of various surfaces and interfaces. Instead of repeating what has been covered in the literature, this review aims to focus on the recent progresses and understandings that need to be summarized for the reference of the researchers and students, who are interested in the nonlinear vibrational spectroscopy of complex molecular surfaces and interfaces, by focusing on the new developments on the accurate measurement and analysis of SFG-VS spectral lineshape that is crucial for the applications to complex molecular surfaces and interfaces.…”