Wavelength dependency of the relative proportions of singlet/triplet methylenes from the photolysis of diazomethane

1970 ◽  
Vol 48 (6) ◽  
pp. 1016-1018
Author(s):  
G. W. Taylor ◽  
J. W. Simons
Keyword(s):  
High Pressure ◽  
Triplet State ◽  
High Pressure Study

Results of a high pressure study of the photolysis of diazomethane/cis-butene-2/ethylene mixtures at 4358 and 3660 Å under various conditions are reported. These results indicate that the proportion of ground triplet state methylene radicals, produced in the primary photolysis of diazomethane, is independent of photolysis wavelength.

High-Pressure Study on the Quenching Mechanism by Oxygen of the Lowest Triplet State in Solution

1998 ◽  
Vol 102 (52) ◽  
pp. 10703-10709 ◽  
Author(s):  
Masami Okamoto ◽  
Fujio Tanaka ◽  
Satoshi Hirayama
Keyword(s):  
High Pressure ◽  
Triplet State ◽  
Quenching Mechanism ◽  
High Pressure Study

High Pressure Studies of Quantum Well Emission and Deep Emission in GaInP(ordered)-GaAs Heterostructures

1997 ◽  
Vol 499 ◽  
Author(s):  
S. H. Kwok ◽  
P. Y. Yu ◽  
K. Uchida ◽  
T. Arai
Keyword(s):  
High Pressure ◽  
Quantum Well ◽  
Emission Band ◽  
Excitation Power ◽  
High Excitation ◽  
High Pressure Studies ◽  
Band Alignments ◽  
High Pressure Study

ABSTRACTWe report on a high pressure study of emission from a series of GaInP(ordered)/GaAs heterostructures. A so-called “deep emission” band at 1.46 eV is observed in all our samples. At high excitation power, quantum well emission emerges in only one structure where thin GaP layers are inserted on both sides of the GaAs well. From the pressure dependent emission in this sample we have determined its band alignments. The role of the GaP layers in suppressing the deep emission is elucidated.

High-Pressure Study of Metallocenes, M(η5-C5H5)2(M = Fe, Co)

2007 ◽  
Vol 76 (Suppl.A) ◽  
pp. 31-32
Author(s):  
Sergey V. Ovsyannikov ◽  
Vladimir V. Shchennikov ◽  
Alexander N. Titov ◽  
Yoshiya Uwatoko
Keyword(s):  
High Pressure ◽  
High Pressure Study

In-situ high-pressure study of the ordered phase of ethyl propionate

2007 ◽  
Vol 63 (1) ◽  
pp. 111-117 ◽  
Author(s):  
Roman Gajda ◽  
Andrzej Katrusiak
Keyword(s):  
High Pressure ◽  
Degrees Of Freedom ◽  
Molecular Volume ◽  
Ethyl Propionate ◽  
Intermolecular Contacts ◽  
High Pressure Study ◽  
Pressure Phase ◽  
Three Degrees Of Freedom ◽  
Volume Difference

Ethyl propionate, C5H10O2 (m.p. 199 K), has been in-situ pressure-frozen and its structure determined at 1.34, 1.98 and 2.45 GPa. The crystal structure of the new high-pressure phase (denoted β) is different from phase α obtained by lowering the temperature. The freezing pressure of ethyl propionate at 296 K is 1.03 GPa. The molecule assumes an extended chain s-trans–trans–trans conformation, only slightly distorted from planarity. The closest intermolecular contacts in both phases are formed between carbonyl O and methyl H atoms; however, the ethyl-group H atoms in phase β form no contacts shorter than 2.58 Å. A considerable molecular volume difference of 24.2 Å3 between phases α and β can be rationalized in terms of degrees of freedom of molecules arranged into closely packed structures: the three degrees of freedom allowed for rearrangements of molecules confined to planar sheets in phase α, but are not sufficient for obtaining a densely packed pattern.

High-Pressure Study of the Anomalous Rare-Earth TernariesEu1.2Mo6S8andEu1.2Mo6Se8

1981 ◽  
Vol 46 (4) ◽  
pp. 276-279 ◽  
Author(s):  
C. W. Chu ◽  
S. Z. Huang ◽  
C. H. Lin ◽  
R. L. Meng ◽  
M. K. Wu ◽  
...  
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
High Pressure Study

High-pressure study of the thermoelectric properties of various oxides (ZnO, Ti2 O3 , Fe x O y ) and FeAs-based compounds

2013 ◽  
Vol 250 (4) ◽  
pp. 741-745 ◽  
Author(s):  
Natalia V. Morozova ◽  
Iuliia A. Khmeleva ◽  
Sergey V. Ovsyannikov ◽  
Alexander E. Karkin ◽  
Vladimir V. Shchennikov
Keyword(s):  
High Pressure ◽  
Thermoelectric Properties ◽  
High Pressure Study

High-pressure study of the anomalous isotope effect inLa2−xAxCuO4withA=Sr or Ba

1992 ◽  
Vol 46 (1) ◽  
pp. 581-584 ◽  
Author(s):  
Q. Xiong ◽  
J. W. Chu ◽  
Y. Y. Sun ◽  
H. H. Feng ◽  
S. Bud’ko ◽  
...  
Keyword(s):  
High Pressure ◽  
Isotope Effect ◽  
High Pressure Study

High Pressure Study of Dynamics in Tetraphenyltin

2002 ◽  
Vol 22 (1) ◽  
pp. 79-82
Author(s):  
A. Pajzderska ◽  
J. Wasicki ◽  
S. Lewicki ◽  
L. Bobrowicz-Sarga ◽  
I. Natkaniec
Keyword(s):  
High Pressure ◽  
High Pressure Study

High pressure study of borocarbide superconductor YNi2B2C at room temperature

1996 ◽  
Vol 223-224 ◽  
pp. 93-95 ◽  
Author(s):  
S Meenakshi ◽  
V Vijayakumar ◽  
R.S Rao ◽  
B.K Godwal ◽  
S.K Sikka ◽  
...  
Keyword(s):  
High Pressure ◽  
Room Temperature ◽  
High Pressure Study
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