Chemistry Reference
In-Depth Information
Chapter 2
Chemical Applications of Mössbauer
Spectroscopy
Philipp Gütlich and Yann Garcia
Abstract The Tutorial Lecture begins with a brief recapitulation of the hyperfine
interactions and the relevant parameters observable in a Mössbauer spectrum. The
main chapter with selected examples of chemical applications of Mössbauer
spectroscopy follows and is subdivided into sections on: basic information on
structure and bonding; switchable molecules (thermal spin transition in mono- and
oligonuclear coordination compounds, light-induced spin transition, nuclear-
decay-induced spin transition, spin transition in metallomesogens); mixed-valency
in biferrocenes and other iron coordination compounds, and in an europium
intermetallic compound; electron transfer in Prussian blue-analog complexes;
molecule-based magnetism; industrial chemical problems like corrosion; appli-
cation of a portable miniaturized Mössbauer spectrometer for applications outside
the laboratory and in space. The Lecture ends with concluding remarks and an
outlook to future developments.
Abbreviations
d
Isomer shift
DE
Q
Quadrupole splitting
DE
M
Magnetic splitting
EFG
Electric field gradient
B
c
Fermi contact field
B
D
Spin dipolar field
eQ
Quadrupole moment
P. Gütlich (
&
)
Institute of Inorganic and Analytical Chemistry, University of Mainz, 55099, Mainz,
Germany
Y. Garcia
Institute of Condensed Matter and Nanosciences, MOST-Inorganic Chemistry, Université
Catholique de Louvain, 1348, Louvain-la-Neuve, Belgium
