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Article
Lattice dynamics, phase transitions and spin relaxation in [Fe(C5H5)2] PF6
The organometallic compound ferrocenium hexafluorophosphate, [Fe(C5H5)2] PF6, has been studied by Mössbauer spectroscopy in the past, mainly to determine the crystal structure at high temperatures. Here we presen...
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Article
Quadrupole Hyperfine Interaction and Magnetic Hyperfine Field in FeOCl and Its Intercalates
FeOCl is a layered compound belonging to the orthorhombic space group Pmnm (D 2h 13 ), with two formula units per unit cell. Adjacent layers in the (010) crystallogra...
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Article
Radiation Damage Studies of USn3
Uranium stannide, the most stable intermetallic compound in the Uranium/Sn system, has the Cu3Au(LI2) structure, and is paramagnetic to liquid He temperature. The magnetic susceptibility data are consistent with ...
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Article
High-Pressure 57Fe Mössbauer Spectroscopy of Octamethyl-Ethynyl-Ferrocene
High-pressure 57Fe Mössbauer measurements of octamethyl-ethynyl-ferrocene (OMFA) were performed using a diamond anvil cell (DAC) in order to clarify the pressure effects on the phase transition occurring at ∼248 ...
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Chapter and Conference Paper
High-Pressure 57Fe Mössbauer Spectroscopy of Octamethyl-Ethynyl-Ferrocene
High-pressure 57Fe Mössbauer measurements of octamethyl-ethynyl-ferrocene (OMFA) were performed using a diamond anvil cell (DAC) in order to clarify the pressure effects on the phase transition occurring at ~248 ...
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Article
Valence averaging and phase transitions in europium (Eu2VO4) and iron (RSr2Fe3O9) compounds
Mössbauer studies of 151Eu in Eu2VO4 reveal a very sharp valence averaging phase transition at 450 K. Two equally intense absorption lines, differing in isomer shift by 12.7 mm/s, corresponding to Eu2+ and Eu3+, ...
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Article
Strong metal atom motion anomaly in iron-organometallics
Temperature-dependent 57Fe Mössbauer effect studies have been carried out over the range 90 ⩽ T ⩽ 350 K on a number of ring-substituted ferrocenes and reveal that in the presence of certain molecular level archit...
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Article
Mössbauer studies related to the solid-state dynamics of C60
C60 (Buckminsterfullerene) is isolated from organic solvents above 260 K as an f.c.c. solid with complete orientational disorder. The rotational dynamics are diffuse and isotropic, with a short (12 ps) correlatio...
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Article
Complementarity of Mössbauer, susceptibility, and FTIR characterization of spin-crossover compounds: Fe(II)l(pip)2(NCS)2l and related compounds
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Article
Hyperfine interactions and nuclear probes in chemistry: The active interface
A symposium entitled “Hyperfine Interaction and Nuclear Probes in Chemistry” was held in conjunction with the 198 th. National Meeting of the American Chemical Society in Miami Beach, Florida, 12 and 13 Septem...
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Article
Mössbauer and exafs investigation of spin-equilibrium in a model-compound for heme proteins
We have used temperature dependent magnetic susceptibility, Mössbauer and EXAFS measurements to study the high spin (HS) — low spin (LS) conversion in Fe(II) (bptn) (NCS)2, and we have combined consistently the i...
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Article
Hyperfine interactions in the anisotropic layer compound FeOCl from57Fe Mössbauer studies
The anisotropic layer compound FeOCl has been synthesized by two different techniques to give, respectively, a large single crystal blade-like product (SC) and a polycrystalline powder product (PC), each of wh...
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Article
Lattice dynamical behaviour of Fe(II) spin crossover compounds from57Fe Mössbauer spectroscopy
Temperature-dependent transmission Mössbauer spectroscopy was used to determine the Debye-Waller factors and hyperfine interaction parameters of the Fe(II) spin crossover complexes: Fe(phen)2(NCS)2, Fe(bipy)2(NCS...
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Chapter
Lithium Insertion Compounds of the High and Low Temperature Polymorphs of LiFeSnO4
The high temperature (HT) and low temperature (LT) polymorphs of LiFeSnO4 with ramsdellite related structures undergo lithium insertion reactions with n-BuLi at ambient temperature to stoichiometries Li2FeSnO4(HT...
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Book
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Chapter
Mössbauer Spectroscopy of Intercalation Compounds
Intercalation compounds are formed by reversible topotactic electron transfer reactions leading to the accommodation of guest species (atoms or molecules) into the van der Waals gaps of inorganic host matrices...
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Article
Lattice dynamics of proton and gamma irradiated Nb3Sn from temperature dependent119Sn Mossbauer studies
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Chapter and Conference Paper
Intermolecular Dynamics of Organotin Compounds from Mossbauer and Raman Spectroscopy
The correlation between chemical structure and the lattice dynamical behavior of the constituent atoms of a solid is of primary importance since those are two complementary aspects of bonding in solids. Howeve...
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Article
Mössbauer Compendium
Mössbauer Spectroscopy
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Chapter
Application to Organometallic Compounds
Mössbauer spectroscopy, used in conjunction with the other spectroscopic methods which are normally employed in structure elucidation, such as infrared, nuclear magnetic resonance (NMR), and x-ray diffraction ...