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This perspective discusses the principles of the multistate scenario often encountered in transition metal catalyzed reactions, and is organized as follows. First, several important theoretical concepts (physical versus formal oxidation states, orbital interactions, use of (spin) natural and corresponding orbitals, exchange enhanced reactivity and the(More)
The reaction mechanism of the Rh-catalyzed [4 + 2] annulation of 4-alkynals with isocyanates is unraveled using density functional calculations. The reaction mechanisms of the model system and the real substituted system have been investigated and the results are compared. From our theoretical results based on the model and real substituted system, it is(More)
Recoverin is an important neuronal calcium sensor (NCS) protein, which have been implicated in a wide range of Ca(2+) signaling events in neurons and photoreceptors. To characterize the conformational transition of recoverin from the myristoyl sequestered state to the extrusion state, a series of conventional molecular dynamics (CMD) and targeted molecular(More)
Titan is the largest satellite of Saturn. In its atmosphere, CH4 is the most abundant neutral after nitrogen. In this paper, the complex doublet potential-energy surface related to the reaction between HCN+ and CH4 is investigated at the B3LYP/6-311G(d,p), CCSD(T)/6-311G++(3df,2pd)(single-point), and QCISD/6-311G(d,p) computational levels. A total of seven(More)
The possible reaction mechanism of atomic radical F with propene is investigated theoretically by a detailed potential energy surface (PES) calculation at the UMP2/6-311++G(d,p) and CCSD(T)/cc-pVTZ (single-point) levels using ab initio quantum chemistry methods and transition-state theory. Various possible reaction paths including(More)
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