Quantum-chemical study of electronically excited states of protolytic forms of vanillic acid

The paper describes an analysis of possible ways of deactivation of electronically excited states of 4-hydroxy- 3-methoxy-benzoic acid (vanillic acid) and its protolytic forms with the use of quantum-chemical methods INDO/S (intermediate neglect of differential overlap with a spectroscopic parameterization) and MEP (molecular electrostatic potential). The ratio of radiative and non-radiative deactivation channels of the electronic excitation energy is established. The rate constants of photophysical processes (internal and intercombination conversions) occurring after the absorption of light in these forms are evaluated. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only

Compensation for oil pollution damage

The commitment of national industries to traditional energy sources, as well as constantly growing energy demand combined with adverse environmental impact of petroleum production and transportation urge to establish and maintain an appropriate legal and administrative framework for oil pollution damage compensation. The article considers management strategies for petroleum companies that embrace not only production benefits but also environmental issues

Evolution of reproduction processes in the establishment and development of a company interaction system (on the example of oil and gas industry)

The article is to study the system of company interactions with economic entities at various levels. The areas of collaboration and tools of common interests coordinating have been identified. The evaluation criteria of the effective interaction system focused on maintaining of sustainable production growth have been suggested. The study is based on the activities of PJSC Lukoil

Evolution of reproduction processes in the establishment and development of a company interaction system (on the example of oil and gas industry)

The article is to study the system of company interactions with economic entities at various levels. The areas of collaboration and tools of common interests coordinating have been identified. The evaluation criteria of the effective interaction system focused on maintaining of sustainable production growth have been suggested. The study is based on the activities of PJSC Lukoil

Quantum-chemical study of electronically excited states of protolytic forms of vanillic acid

The paper describes an analysis of possible ways of deactivation of electronically excited states of 4-hydroxy- 3-methoxy-benzoic acid (vanillic acid) and its protolytic forms with the use of quantum-chemical methods INDO/S (intermediate neglect of differential overlap with a spectroscopic parameterization) and MEP (molecular electrostatic potential). The ratio of radiative and non-radiative deactivation channels of the electronic excitation energy is established. The rate constants of photophysical processes (internal and intercombination conversions) occurring after the absorption of light in these forms are evaluated. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only