Now showing items 1-10 of 140
Application of resonance Raman spectrometry to the determination of vitamin b12
(Elsevier, 1975-05)
Assignments of the n[pi]* singlet states of p-benzoquinone
(Elsevier, 1974-03-30)
The vapor phase fluorescence spectra of p-benzoquinone-h4 and d4 are reported and discussed in relation to the assignment of the low lying singlet states. The low temperature, polarized single crystal electronic absorption ...
Determination of adrenaline and noradrenaline by resonance Raman spectrometry
(Elsevier, 1976-01)
Aminochromes of adrenaline and noradrenaline show resonance Raman scattering at 1480 and 1430 cm-1 respectively, with Ar+ excitation. Scattering intensity is a linear function of concentration. Detection limits are 1 x ...
Optically detected zero field magnetic resonance of phosphorous activated alkali halide crystals
(Elsevier, 1977-10-15)
Optically detected zero field magnetic resonance (ODMR) has been utilized to obtain the fine structure parameters |D| and |E| of the phosphorescent color center in phosphorous activated potassium chloride and bromide single ...
Spectral variational principle for Green's functions
(Springer-Verlag, 1972-12)
For a suitable approximation ( q, q′, τ ) to the Dirac-Feynman Green's function of a quantummechanical system, the parameter is defined, where ℒ≡ i ∂/∂τ−ℋ. It is shown that Δ ≧0 and Δ →0 as K→K , the exact Green's function, ...
Percolation and cluster distribution. III. Algorithms for the site-bond problem
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1979-11)
Algorithms for estimating the percolation probabilities and cluster size distribution are given in the framework of a Monte Carlo simulation for disordered lattices for the generalized site-bond problem. The site-bond ...
Photosystem II -- Mediated cyclic photophosphorylation
(Elsevier, 1976-02-09)
DCMU-sensitive synthesis of ATP can be shown to continue in KCN-treated chloroplasts after cessation of O2 evolution. The catalyst for this reaction, -phenylenediamine, also stimulates synthesis of ATP in NH2OH-treated ...
Field‐dependent relaxation and absolute nuclear shielding of 207Pb in liquid PbCl4
(The American Institute of Physics, 1974-02-01)
Relaxation times T1 and T2 of 207Pb in liquid PbCl4 have been studied for the purpose of establishing an absolute nuclear shielding scale for lead. T1 has been decomposed into scalar and spin‐rotation contributions using ...
Molecular Exciton Cluster States and Spectra with Application to Benzene
(WILEY-VCH Verlag, 1977-06-01)
A cluster expansion is introduced for the determination of the optical absorption properties of cluster states in substitutionally disordered molecular crystals. This method is based on the Green's function expansion in ...