Results 181 to 190 of about 230,622 (206)

Kristallstruktur von [As(C6H5)4]2[Re3Cl11(H20)] • H20

1990
(AsPh4)2[Re3Cl„(H2O)]·H2O, previously thought to be (AsPh4)2[Re3Cl11], was redetermined from single-crystal four-circle diffractometer data. The crystal system is triclinic, PĪ, a = 983.1(6), b = 1200.5(6), c = 2566.2(10) pm, α = 92.67(4), β = 99.95(4), γ = 113.38(2)°, Vm = 817.95(1) cm3/mol, R = 0.043,Rw= 0.033.
Jung, Bernd, Meyer, Gerd
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MPEC 2023-H20 : 2023 GQ2

2023
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The hydrogen bond, and the structure and properties of H20 and (H20)2

Journal of Molecular Structure, 1991
Abstract The properties of a hydrogen bond are reviewed. We consider the H 2 0 molecule in its ground electronic state since this has to be the starting point for a study of water, ice and aqueous solutions. The water dimer, (H 2 0) 2 , and the hydrogen fluoride dimer, (HF) 2 , are discussed.
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Hydrate-H20 and Liquid Like H2O

1985
H-bond interactions of H2O can be investigated with high accuracy in the region of the H2O combination vibration (near infrared (NIR): 1900–2000 nm or 5300–5000 cm−1).
Hubertus Kleeberg, Werner A. P. Luck
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Darstellung und kristallstrukturuntersuchung von KPbBr3 · H20

Journal of the Less Common Metals, 1986
Orthorhombic symmetry is shown by single crystals of KPbBr3 · H2O: Space group Cmc22 (No. 36), a = 4.414 A, b = 19.728 A, c = 8.904 A. The atomic arrangement of KPbBr3 · H2O is explored by X-ray crystal analysis. Lead shows a rather distorted octahedral neighbourhood around bromine, whereas potassium is trigonal prismatically surrounded by bromine as ...
H.-L. Keller, I. Jess
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A new H10-to-H20 mode transducer

Proceedings of the IEE Part B: Electronic and Communication Engineering, 1960
Using a general method of mode-transducer design previously described, a simple H10-to-H20 mode transducer was constructed. The reflection coefficient is calculated, and it is shown that for a transducer a few wavelengths in length the reflections are insignificant. The power transferred to the spurious modes was measured by the resonance method on two
C.C. Eaglesfield, Y. Klinger, L. Solymar
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HOUSESTEADS FORT 1984 - THE WOODEN ARTIFACTS FROM CONTEXTS H20/10/42 AND H20/10/48

1988
Four wooden artifacts were analysed from context H20/10/48 and the species of wood identified. Two objects were found to be made from hazel (Corylus avellana L.) and two were made from exotic woods, sweet chestnut (Castanea sativa Mill.) and silver fir (Picea abies Mill.).
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Bramble Energy H20 prototypes in testing

Fuel Cells Bulletin, 2018
UK-based Bramble Energy has taken delivery of its first run of five prototype H20 fuel cell systems, which will be built up and tested in the lab and in a range of other facilities and operating conditions.
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MPEC 2025-H20 : 2024 WH3

The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Low-Luminosity Extra-Galactic H20 Masers

2005
Recent high-resolution observations of low-luminosity extra-galactic H2O masers towards M 82, M 51, and NGC 4051 are presented in this contribution. These observations were conducted using the very large array (VLA). The general observational properties of these masers are discussed.
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