Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Li-Hwa Lu"'
Publikováno v:
Journal of Molecular Structure. 831:151-164
A series of eight lariat 16-crown-5 ethers (LCEs), which have the same parent macrocycle but with a different sidearm, have been synthesized. An experimental study and a quantum mechanical research, which uses the density functional theory (DFT) to c
Publikováno v:
Journal of Luminescence. 121:159-172
Fluorescence spectroscopic properties of the complex formation between six new C-pivot16-crown-5 ethers bearing fluorescence side arms and metal ions are studied. Six new C-pivot 16-crown-5 ethers that carry fluorescence side arms were synthesized. T
Publikováno v:
Journal of Molecular Structure. 741:193-199
Three natural products, Coumarin (1), p-hydroxybenzoic acid (2), trans-cinnamic acid (3) were isolated from the natural plant of indigenous cinnamon and the structures including relative stereochemistry were elucidated on the basis of spectroscopic d
Publikováno v:
Biophysical Chemistry. 114:13-20
Two natural products, farformolide B and sesamin were isolated from Farfugium japonicum and Cinnamomum kanehirae, respectively. The structures of the two natural products, including their relative stereochemistry, were elucidated using spectroscopic
Publikováno v:
The Journal of Physical Chemistry A. 107:4563-4567
A molecular comparative study and a conformational analysis of a new 16-crown-5 ether were conducted using X-ray crystallography and NMR spectroscopy. The resulting X-ray crystal structure of the cyanoethyl sym-dibenzo-16-crown-5 ether showed three i
Autor:
Li-Hwa Lu
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 460:1-9
The B3LYP/3-21G* ab initio molecular orbital method from the gaussian 94 program package was applied to study tricyclo[3,3,1,1 3,7 ]decane and tricyclo[3,3,1,1 3,7 ]decsilane molecules and their halogen derivatives (1,3,5,7-tetrahalotricyclo[3,3,1,1
Autor:
Li-Hwa Lu
Publikováno v:
International Journal of Quantum Chemistry. 72:189-198
The B3LYP/3-21G* ab initio molecular orbital method from the Gaussian 94 computer program package was applied to study tricyclo[3,3,1,13,7]decane and tricyclo[3,3,1,13,7]decsilane molecules and their halogen derivatives (1,3,5,7-tetrahalotricyclo[3,3
Autor:
Li-Hwa Lu
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 432:105-113
The HF/6–31G∗ ab initio method which from Gaussian 94W program packages was applied very well in tricyclo[3,3,1,13,7]-decane, tricyclo[3,3,1,13,7]decsilane and their silicon-carbon mixed derivatives, C10 − nSinH16 (n = 0, 4, 6, 10). After the w
Publikováno v:
International Journal of Quantum Chemistry. 68:273-284
Herein we demonstrate that the C40 cluster molecule is easily formed to Td symmetry structure and its ground state is 5A2 open shell with four unpaired electrons. These four unpaired electrons are located at the tip points of the Td symmetry structur
Publikováno v:
International Journal of Quantum Chemistry. 67:187-197