"Sequential order" rules in generalized two-dimensional correlation spectroscopy.

摘要: The widely used “sequential order” rules in the generalized two-dimensional (2D) correlation spectroscopy were adopted from mechanical perturbation-based 2D infrared, where dynamic spectral intensity variation must be a simple sinusoid. analysis is fundamentally form of parametrization integrated or overall relationship between two variable quantities. In spectroscopy, however, variations are generally nonperiodic and monotonic, changes largely instantaneous. sequential orders situations therefore localized. It naturally necessary important to testify whether result obtained by using order consistent with local events, which reflects real situations. Unfortunately, this test was not done yet. report, have been tested generalized...