Rotational dynamics of methyl ammonium ions and hydrogen-bonding in orthorhombic CH3NH3PbI2.94Cl0.06 by means of neutron scattering and IR investigations

The Raman spectra of polycrystalline (NH4)2CrO4 and (ND4)2CrO4 have been obtained by a sample rotation technique where the uncompressed solid is contained in a glass cylindrical cell. The apparatus is a commerically available sample rotator for liquids, which was modified for the described solid sampling technique. The Raman spectra of (NH4)2CrO4 and (ND4)2CrO4 are discussed in relation to their uniquely monoclinic structure, in contrast to the β-K2SO4 structure found for (NH4)2SO4 and many alkali metal chromates and sulfates. The hydrogen bonding in (NH4)2CrO4 is described, and its role in determining both the structure and the Raman spectra is discussed. The data suggest a barrier to NH4+ rotation of approximately 3.70 kcal/mol, indicating that the ammonium ions are not freely rotating on the time scale of the Raman experiment (10−13 sec).

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Neutron scattering from ammonium salts. II. Reorientational motion of ammonium ions in octahedral environments

Journal of Physics C Solid State Physics ◽

10.1088/0022-3719/12/2/010 ◽

1979 ◽

Vol 12 (2) ◽

pp. 219-234 ◽

Cited By ~ 15

Author(s):

P S Goyal ◽

B A Dasannacharya

Keyword(s):

Neutron Scattering ◽

Ammonium Salts ◽

Ammonium Ions ◽

Reorientational Motion

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An ab initio molecular dynamics study of supercritical aqueous ionic solutions: Hydrogen bonding, rotational dynamics and vibrational spectral diffusion

Chemical Physics ◽

10.1016/j.chemphys.2011.06.031 ◽

2011 ◽

Vol 387 (1-3) ◽

pp. 48-55 ◽

Cited By ~ 14

Author(s):

Bhabani S. Mallik ◽

Amalendu Chandra

Keyword(s):

Molecular Dynamics ◽

Hydrogen Bonding ◽

Ab Initio ◽

Spectral Diffusion ◽

Rotational Dynamics ◽

Ab Initio Molecular Dynamics ◽

Ionic Solutions ◽

Aqueous Ionic Solutions

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Coherent quasielastic neutron scattering study of the rotational dynamics ofC60in the orientationally disordered phase

Physical Review Letters ◽

10.1103/physrevlett.67.3808 ◽

1991 ◽

Vol 67 (27) ◽

pp. 3808-3811 ◽

Cited By ~ 182

Author(s):

D. A. Neumann ◽

J. R. D. Copley ◽

R. L. Cappelletti ◽

W. A. Kamitakahara ◽

R. M. Lindstrom ◽

...

Keyword(s):

Neutron Scattering ◽

Rotational Dynamics ◽

Disordered Phase ◽

Quasielastic Neutron ◽

Scattering Study ◽

Quasielastic Neutron Scattering ◽

Neutron Scattering Study

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Optimization of a phosphine oxide disulfoxide array for multipoint hydrogen bonding to ammonium ions

Journal of the American Chemical Society ◽

10.1021/ja00070a055 ◽

1993 ◽

Vol 115 (17) ◽

pp. 7900-7901 ◽

Cited By ~ 17

Author(s):

Paul B. Savage ◽

Steven K. Holmgren ◽

Samuel H. Gellman

Keyword(s):

Hydrogen Bonding ◽

Phosphine Oxide ◽

Ammonium Ions

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Investigation of glycerol hydrogen-bonding networks in choline chloride/glycerol eutectic-forming liquids using neutron diffraction

Physical Chemistry Chemical Physics ◽

10.1039/c9cp04343h ◽

2019 ◽

Vol 21 (39) ◽

pp. 21782-21789 ◽

Cited By ~ 14

Author(s):

Adam H. Turner ◽

John D. Holbrey

Keyword(s):

Hydrogen Bonding ◽

Neutron Diffraction ◽

Neutron Scattering ◽

Choline Chloride ◽

Three Dimensional ◽

Hydrogen Bonding Networks ◽

Hydrogen Bonding Network

Neutron scattering reveals the persistent three-dimensional hydrogen-bonding network between glycerol molecules in the 1 : 2 choline chloride/glycerol eutectic.

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Rotational dynamics of the imidazolium ion in cyanide-bridged dielectric framework materials

Chemical Communications ◽

10.1039/d0cc05238h ◽

2020 ◽

Vol 56 (79) ◽

pp. 11791-11794

Author(s):

Anthony E. Phillips ◽

Guanqun Cai ◽

Franz Demmel

Keyword(s):

Neutron Scattering ◽

Rotational Dynamics ◽

Framework Materials ◽

Switching Dynamics ◽

Quasielastic Neutron ◽

Quasielastic Neutron Scattering ◽

Imidazolium Ion

Quasielastic neutron scattering reveals the geometry and timescale of the dielectric switching dynamics in a series of elpasolite-like framework materials.

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