Supported by the National Natural Science Foundation of China (Grant No. 30270274);Postdoctoral Science Foundation of China (Grant No. 2005038461)
A novel salicylaldehyde dehydrogenase involved in catabolism of naphthalene from Pseudomonas putida ND6, NahV, has been identified. NahV exhibited lower identity in amino acid sequence with the classic salicylaldehyde...
It has been noticed that the properties of polymer, such as solubility, crystallinity and flexibility, strongly depend on the stereoregularity of polymer chains. For example, some big differences in glass transition t...
Recently, in researches on the effect of the magnetic field on radical polymerization of vinyl monomers, it was found that the molecular weight and stereoregularity of polystyrene were increased and the molecular weig...
Since Weller discovered the exciplex in 1963, and since then it has had great development during the recent 20 years, because it plays an important role in photochemical reactions. As is well known, the sandwich struc...
Project supported by the Science Fund of Academia Sinica
The fundamental ideas of the resonance theory (RT), i. e. stability increases with the number of resonance structures (RS); bond order Prs and charge density qr, are obtained by superposing RS, have been justified...
After Weller discovered exciplex, he proposed that electron transfer occurs during the formation of exciplex. This means that in the excited state, electron is transferred from the highest occupied orbital, of the ele...
Since F?rster discovered the fluorescence spectrum of excimer in 1954, a lot of work has been done in this field. It is generally considered that there is no preformed excimer site in the ground state because the abso...
As is well known, the fluorescence spectra of amino-acids can be varied greatly by pH. However, up to date, the effect of organic or inorganic acid on the fluorescence spectra of non-ionic organic compounds is not cle...