2021-04-22 21:41 ComputaBio' natural bond orbit analysis (NBO) service can reduce the cost of later experiments. The natural bond orbit analysis (NBO) service is a personalized and customized innovative scientific research service. Before determining the correspondin ... дальше
2021-04-22 21:41 Nonlinear optics (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization density P responds non-linearly to the electric field E of the light. The non-linearity is typically obs ... дальше
2021-04-22 21:41 With the development of computer science and the improvement of computer speed, some new methods are increasingly applied to the field of chemistry. The thermodynamic properties of an object refer to the law of change between the internal energy, ent ... дальше
2021-04-22 21:40 The reaction mechanism is of great significance in organic chemistry. Through the reaction mechanism, it is possible to (1) find the laws of organic reactions to optimize the reaction efficiency and increase the reaction yield; (2) design new reactio ... дальше
2021-04-22 21:40 Infrared spectroscopy is a kind of absorption spectroscopy, which is mainly used to study the vibrational and rotational spectra of molecules. It is generally used to study the structure of polyatomic molecules, and molecular quantitative and qualita ... дальше
2021-04-22 21:40 Ab initio quantum chemistry methods are computational chemistry methods based on quantum chemistry. Ab initio quantum chemistry methods attempt to solve the electronic Schrödinger equation given the positions of the nuclei and the number of electrons ... дальше
2021-04-22 21:40 In chemistry, isomers are molecules or polyatomic ions with identical chemical formulas but distinct arrangements of atoms in space. Isomers do not necessarily share similar properties. Two main forms of isomerism are structural isomerism (or constit ... дальше
2021-04-22 21:40 The magnetic nucleus undergoes spin level splitting under the action of an external magnetic field. When absorbing external electromagnetic radiation, a transition of nuclear spin level will occur, resulting in nuclear magnetic resonance. In organic ... дальше