Phase transition in Fe(C11O2H19)3 at 115.25K

Universal Interaction of Thermodynamical and Structural Characteristics in Molecular Crystals of Metal β-Diketonates

“…Among the properties of metal β-diketonates, an important place is occupied by those properties that can be obtained from data on a low-temperature heat capacity. The experimental data are now the main source of information about thermodynamic properties of such complex objects as metal β-diketonates. − Regular interrelations can be observed in this direction when studying the behavior of the various properties of these objects. Research in this direction is an important task of physical chemistry, because it can help in forecasting the properties of unstudied objects.…”

“…In the present analysis we have considered all now-available experimental data on the low temperature heat capacity for tris-β-diketonates Al(C 5 H 7 O 2 ) 3 , Cr(C 5 H 7 O 2 ) 3 , Fe(C 5 H 7 O 2 ) 3 , Ir(C 5 H 7 O 2 ) 3 , Fe(C 11 H 19 O 2 ) 3 , and Fe(C 5 HF 6 O 2 ) 3 − to detect regularities in thermodynamic property behavior and the interrelation of such properties with structural characteristics of these materials.…”

Catalytic Synthesis of Triaryl Phosphates from White Phosphorus

“…The organic layer was found to contain catalyst 1, which, after evaporation of the solvents, appeared to be pure as observed by IR spectroscopy and had a melting point of 158-160°C (literature values: 162-164). [21] The dry weight of catalyst recovered was 92 % of the starting mass, and it was successfully used in a further reaction. The light brown solid [22] was filtered off and identified as triphenyl phosphate by IR and NMR spectroscopy (isolated yield 82 %).…”

“…The IR spectrum and melting point of the compound (163-164°C) were found to be in excellent agreement with those in the literature. [40,21] Iron(III) 1,1,1-Trifluoro-2,4-pentanedioneate (2): 1,1,1-trifluoro-2,4-pentanedione (10.00 g, 0.0648 mol), iron(III) chloride (3.70 g, 0.0216 mol) and sodium acetate (8.80 g, 0.0648 mol) were dissolved in a 50:50 ethanol/water mixture (50 mL). The solution was heated to 60°C for 1 h with stirring.…”

Low-Temperature Heat Capacity and Thermodynamic Functions of Tetrameric Cobalt(II) Acetylacetonate

“…Low-temperature heat capacity data are very informative. They enable calculating integral thermodynamic functions, such as entropy, enthalpy, and reduced Gibbs energy, as well as gaining information on phase transitions, , phonon spectrum parameters, , etc. In addition, accumulation of reliable thermodynamic data provides opportunities in searching for correlations and appropriate theoretical generalizations. , …”