In this paper, the ¹³C NMR lines of two new series of fused tricyclic triazophospholene compounds, 1-phenyl-5-aroxyl derivatives Ⅱ and 1-phenyl -5-alkoxyl derivatives Ⅲ, were assigned to each carbon, and the correlation between δ³¹P values and σ constants of substituents on Ar groups was reported.

High-Resolution ¹H-NMR spectra of eight typical diphenic acids were reported. The chemical shifts of complex system of diphenyl protons can be identified by the double resonance method, but can't be determined in 80 MHz ¹H-NMR spectra.

A series of PET PCL polyester-polyester multiblock copolymers with different weight ratio of the hard to the soft segments have been studied by ¹H-NMR. peaks were assigned by using various spectral informations and techniques.Thus, mathematical expressions which decribe well the multiblock copolymers with ¹H-NMR. sequence structure of the chemical chains and quantitative relations in each structure units were obtained.

This paper introduces a method to set up a ¹³CNMR spectral data base with DBASE I and BASIC. The retrieval system provides easy acquisition, correction, inquiry, displaying and printing of spectral data and molecular structures for the user. It is practical to set up a small-scale specific spectral data base.

The active radicals produced in the photochemical hydrogen abstraction reactions between benzophenone and aliphatic or aromat;c hydrocarbons have been studied by combination of spin trapping reagent 2,4, 6-tri-t-butylnitrosobenzene (TBN) by ESR spectroscopy.Results show that R₃R₂R₁Ċ reacts with TBN to form N-alkoxyanilino spin adducts, and RĊHR' reacts with TBN to form both N-alkoxyanilino and Nitroxide spin adduets.Therefore, TBN may be used for distinguishing radicals from aliphatic or aromatic hydrocarbons with and without steric hindrance.

The study of ESR line shapes of transition metal complexes in magnetically dilute polycrystalline samples by R. Nejman and D. kwelson has been extended. An expression of the absorption intensity, with second order approximation may be obtained. The programs have been designed fot simulation ESR derivative spctrum by SHARP PC-1500 pocket computer.

The carbon-13 spin-lattice relaxation times and nuclear overhauser enhancement factors (NOE) fora series of 1, 2-polybutadienes with different configurations of 1,2-units in solution of CDCl₃ are determined on 200 MHz pulse FT-NMR Spectrometer. Different kinds of model in interpreting the carbon-13 NMR relaxation data including the Cole-Cole, Fuoss-kirkwood distribution mobel of correlation times, the configurational jump model proposed by valeur et. al. and damped orientational diffusion model of polymer local main-chain motion proposed by Skolnick and Yaris were computer simulated. The stereochcmical dependence of carbon-13 NMR relaxation in 1, 2-polybutadienes is investigated.

In the present paper the calculation methods of chemical shifts of protons in the rings of fused benzenoid aromatic hcterocyclics and their alkyl chains has been proposed.
The chemical shift of fused benzenoid aromatic helerocyclics must be presented by KeKul'e formulas, the calculation formula is:
σ_j,c=c are the effects of ethenyls in the benzene rings that must be calculated.σ_mi,Cj are the net ring-current effects of benzene rings.σ_l,Hc are shielding effects of aromatic heterocyclics. If the proton belongs to an aromatic heterocyclic ring,σ_l,Hc is chemical shift of the proton that is in the same position of the single aromatic heterocyclic ring. If the proton belongs to benzene rings,σ_l,Hc must be divided into the effects of the structural units, thus:
σ_l,Hc=(1/2)^d-1σ_x=y(or σ_z)+σ_c-c+σ_m,Hc σ_x=y and σ_Z are shielding effects ofheteroatom or hcteroatomic group +σ_c-c is the effect of ethenyl if it is situated in the aromatic heterocyclic ring. σ_m,Hc is net ring current effect of aromatic helerocyclic ring, d is the bond number that is concerned to the different protons. The substituting groups must be considered if they are present. The calculation fomula for the protons of alkyl chains in a ring is:δσ_P,CH3+α σ_S,CH3+β σ_t,CH3+σ_i,G σ_i,G is a certain order effect of fused benzenoid aromatic heterocyclic radical.

¹H NMR parameters of gasoline adsorbed on five native charcoals have been measured. It was found that chemical shifts, half height width of the spectral lines and spin lattice relaxation times are closely related to the degree of desorption of gasoline, adsorption capacity and the amount of surface acid groups of the charcoal respectively. These results were discussed.

The active radicals produced in the photochemical hydrogen abstraction reactions between benzophenone and ethers or phenols have been studied by combination of sqin trapping reagent 2,4,6-tri-t-butylnitrosobenyene (TEN) by ESR spectroscopy. Results demostratethat benzophenone can abstract hvdrogen from a-c adjacent to oxygen of ethers as follows.
ϕ₂CO+ROR→ϕ₂ĊOH+R'ĊHOR
And the R'ĊHOR reacts with TBN to form either Nitroxide(I) or N-alkoxyanilino spin adducts. For the case of phenols, benzophenone abstracts hydrogen from phenolic hydroxyl of phenols to from phenoxy radicals (R-O-Ȯ). They also react with TEN to formeither(I) or (Ⅱ) spin adducts.

The ESR spectra of three reduced heteropolyanions belonging to Lindqvist structure are reported in this paper. At room temperature and appropriate pH range the ESR spectrum of VMo₅O₁₉^4- contains 8 hyperfine lines and the spectra of V₂W₄O₁₉^5-and V₃W₃O₁₉^6- contain 15 hyperfines lines. These 15 lines gradually change their shape and finally become a eight-line spectrum after a longer period of time. We have successively simulated these complex 8 + 15 spectral lines by superposition of the 8 line with 15 line spectrum at different ratios. The ESR parameters of 77K frozen spectra are determined and the approximate K, α values are calculated based on LCAO-MO theory. The results are compared with those of Keggin structure polyanions. It is found that the K, α values of Keggin structure are smaller due to the extra delocalization originated from the additional corner-shared oxygen presented in the Keggin strcture.

A pulse sequence for generating the ¹³C-NMR spectra of nonprotonated carbons is introduced. A suggestion for improving this sequence is offered. It has been shown on a FX-90Q NMR spectrometer that this improvement can obviously increase the accumulation efficiency and decrease the peak intensity distortion.

Biological membrane is an important part of the cell. The biosynthesis of the protein, catalytic mechanism of the enzyme, energy transmit, material convey, nerve impulse transmission, cell-cell recognition, cell cancerology, immunochemistry, hormonal action, metabolism, vision and resperation are closely related to the functions of biological membrane. To study the relationship between structure, especially dynamic structure, and function of biological membrane will provide important scientific basis for solving these problems. Study of membrane protein and biological membrane by ²H NMR is a very effective means for solving them.
Several problems in dynamic structure of membrane protein, especially bacteriorhodopsin of purple membrane, and biological membrane studied by solid state ²H NMR are discussed in this paper on the basis of the new results obtained by us and other authors. These problems are 1). Selection of the method for the study of dynamic structure of membrane proteins and biological membrane. 2). Dynamic structure of purple membrane protein studied by solid state ²H NMR. 3). The model of dynamic micro-structure of bacteriorhodopsin of purple membrane. 4). A contemporary, microscopic fluid mosaic model of dynamic structure of biological membrane by ²HNMR.

In this paper the theoretical foundation of commutative hyper-operator method has been discussed.The results show that the operator set defined by commutative hyperoper-ator is a Lie algebra, the definition of commutative hyper-operator is just that of the inner derivation in Lie algebra.From this, some algebric relations between commutative hyper-operators were obtained. It is verified that hyper-opera tor set derived from operators in g is also a Lie algebra.It is shown that a Lie group derived from covering group and defined by inner product corresponds to g.and the hyper-operators of angular momentum are generated by direct product between inner angular momentum of a vector field and unit operator.The conclusion is that the theoretical foundation of commutative hyper-operator method is Lie algebra.