Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Yu. A. Dyadin"'
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 56:303-308
The sections of the phase diagram of a ternary system ethane–methane–water at pressures up to 1000 MPa were studied by means of the differential thermal analysis. The investigation was carried out under the conditions of excessive amount of the g
Autor:
M. I. Kuzmin, N. M. Bazin, B. S. Smoljakov, G. M. Mahov, G. V. Kalmychkov, A.D. Duchkov, Yu. A. Dyadin, E. G. Larionov, F. A. Kuznetsov, Yu. I. Mironov, A. Yu. Manakov, V. F. Geletiy
Publikováno v:
Annals of the New York Academy of Sciences. 912:112-115
In 1997 an underwater borehole was drilled in the South part of Lake Baikal (water depth, 1,433 m; borehole depth, 225 m; the temperature at these depths is about 10°C). Samples of sediments containing methane hydrate were collected at depths 121 an
Publikováno v:
Annals of the New York Academy of Sciences. 912:967-972
CS-II double clathrate hydrates of tetrahydrofuran, CHCl3, CCl4, SF6, and xenon as a “help gas” keep their structures in the pressure interval 1215,000 bar. Decomposition temperatures of these hydrates rise monotonically in the pressure interval
Autor:
L. S. Aladko, Yu. A. Dyadin
Publikováno v:
Russian Journal of General Chemistry. 76:29-32
Three clathrate hydrates i-Pent3BuNCl · 38H2O, i-Pent3BuNCl·32H2O, and i-Pent3BuNCl·27H2O, as well as triisopentylammonium dihydrate were found in the system i-Pent3BuNCl-H2O. Crystals of all the hydrates were isolated, and their compositions were
Autor:
D. Yu. Naumov, A. Yu. Manakov, V. Yu. Komarov, Yu. A. Dyadin, I. S. Terekhova, V. V. Feklistov
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 52:207-211
X-ray powder diffraction studies were performed of the polyhydrates, formed at positive temperature in swelled grains of carboxylic cation-exchange resins in the form of tetraisoamylammonium (cross-linked tetraisoamylammonium polyacrylates, differing
Autor:
Yu. A. Dyadin, E. V. Grachev
Publikováno v:
Crystallography Reports. 50:517-521
The algorithms for analysis of shape and size of a cavity in a hydrate framework are considered. As an example, the framework structure of cubic structure II is analyzed.
Publikováno v:
Journal of Inclusion Phenomena. 48:19-23
This study compares thermodynamic stability of clathrate compounds belonging to three isomorphous series: (MPy4(NCO)2) ∗ 2Py (M = M(II) = Mn, Fe, Co, Ni), (MPy4(NO3)2) ∗ 2Py (M = Mn, Co, Ni, Cu, Zn), and (CuPy4(NO3)2) ∗ 2G (G = pyridine, benzen
Publikováno v:
Journal of Inclusion Phenomena. 48:11-18
Neutron diffraction patterns of three argon hydrates which exist at the pressures up to 10 kbar has been studied; Rietveld refinement of their structures has been done. The phase which is stable from 1 bar to 4.6 kbar appears to be typical cubic stru
Publikováno v:
Journal of Molecular Liquids. 106:229-238
The effect of the hydrophobic and hydrophilic inclusion on the structure, stoichiometry and stability of polyhydrates of halogenides of quaternary ammonium bases is discussed. Phase diagrams of binary systems H2O-(i-C5H11)4−k(C4H9)kNA (k = 0, 1, 2,
Publikováno v:
Russian Journal of General Chemistry. 73:327-330
Two clathrate hydrates i-Pent4NI·36H2O and i-Pent4NI·32H2O were revealed in the system (i-Pent)4NI-H2O. The hydrates melt incongruently at 14.2 and 14.8°C, respectively. Along with the polyhydrates, tetraisopentylammonium dihydrate was found.