MOSSBAUER SPECTRA OF IRON COMPLEXES CONTAINING DIECETYLTHIOSEMICABAZONEOXIME (DTOH$sub 2$) AND THE METHYL ETHER DERIVATIVE (DTOHMe)

Journal Article · Wed Aug 21 04:00:00 EDT 1963 · Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals

OSTI ID:4633460

Ablov, A V; Belozerskii, G N; Gol'danskii, V I; Makarov, E F; Trukhtanov, V A; Khrapov, V V

Mossbauer absorption spectra were investigated on compound I which is an addition product of DTOH/sub 2/ and FeCl/sub 2/ (II), on compound II which can be represented by a formula Fe(DTOH) (removal of two hydrogen atoms), and on compound III or Fe(DTOMe)/sup 2/ which is a methyl ether derivative. Co/sup 57/ plated on chromium and fixed by thermodiffusion at 800 deg C in a hydrogen atmosphere was used as a source of 14.4-kev gamma quanta. A scintiliation counter with a NaI(Tl) crystal 1 mm thick was used as a detector. The resonance absorption spectrum was analyzed on a 100channel amplitude analyzer. The Co/sup 57/ source was maintained at room temperature, while the absorber was held at room temperature (300 deg K) and at the temperature of liquid nitrogen (78 deg K). No Zeeman splitting of the ground state or excited state of Fe/sup 57/ was observed. Direct measurements showed that the compounds were diamagnetic. The chemical shift S in mm/sec and quadrupole splitting DELTA in mm sec were determined for these compounds. The values of S were 0.47 at 78 deg K ( DELTA = 0.65) and 0.42 at 300 deg K ( DELTA = 0.68) for compound I, 0.29 at 75 deg K and 0.22 ( DELTA = 2.02) at 300 deg K for compound II, and 0.50 ( DELTA = 0.88) at 78 deg K and 0.45 ( DELTA = 0.88)- for compound III. The quadrupole splitting increased sharply in compound II, while the chemical shift decreased. Compounds I and II gave a similar Mossbauer spectrum. A calculation of the molecular orbitals is required for a complete quantitative explanation of these effects. (TTT)

• Research Organization: Inst. of Chemical Physics, Academy of Sciences, USSR; Inst. of Chemistry, Academy of Sciences, Moldavian SSR
• NSA Number: NSA-17-040864
• OSTI ID: 4633460
• Journal Information: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals, Journal Name: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals Vol. Vol: 151; ISSN DANKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
ACETYL RADICALS
ATOMIC MODELS
CHEMISTRY
CHROMIUM
COBALT 57
CRYSTAL COUNTERS
CRYSTALS
DIAMAGNETISM
DIFFUSION
DTOH2
ELECTRIC MOMENTS
ENERGY LEVELS
ENERGY RANGE
ETHERS
EXCITATION
GAMMA RADIATION
GAMMA SOURCES
HEATING
HIGH TEMPERATURE
HYDROGEN
IMPURITIES
IRON 57
IRON CHLORIDES
IRON COMPLEXES
IRRADIATION
KEV RANGE
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETISM
MEASURED VALUES
METHYL RADICALS
MOESSBAUER EFFECT
MOLECULES
NUCLEAR MODELS
ORBITS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PLATING
PULSE ANALYZERS
QUADRUPOLE MOMENTS
RADIATION CHEMISTRY
RADIATION DETECTORS