Phase Diagram of the Pyrene-Picryl Chloride System

Bando, Masaki; Matsunaga, Yoshio

doi:10.1246/bcsj.49.3345

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Differential Thermal Analysis-differential Scanning Calorimetry1

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1978

1981

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Cited by 4 publications

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“…DSC has been used to determine phase diagrams for pyrene-picryl chloride (24), pentaerythrityl tetrabromidepolyethylene (333), and trioxane-poly(e-caprolactone) (372) systems. Purity measurements by DSC were made on naphthalene, benzil, methyl stearate, cholesterol, cholesteryl caproate and stearate, dicholesteryl adipate, pentaerythrityl tetracaproate, squalene, and polystyrene (251).…”

Section: Differential Thermal Analysis-differential Scanning Calorimetrymentioning

confidence: 99%

Thermal analysis

Murphy¹

1978

Anal. Chem.

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Section: Differential Thermal Analysis-differential Scanning Calorimetrymentioning

confidence: 99%

Thermal analysis

Murphy¹

1978

Anal. Chem.

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A re-examination of the phase diagram of the binary system pyrene—picryl chloride

Krajewska

Wasilewska

1981

Thermochimica Acta

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Isomorphism in the High-temperature Forms of the Pyrene Complexes with Five Polynitro Aromatic Compounds

Inoue

Matsunaga

1978

Bulletin of the Chemical Society of Japan

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Crystalline pyrene complexes with 2,4-dinitrofluorobenzene, 2,4-dinitrochlorobenzene, 2,4-dinitrotoluene, 2,4-dinitrophenol, and picryl chloride exhibit polymorphic transitions. Their temperatures and associated enthalpies are presented. The high-temperature forms show essentially identical X-ray diffraction patterns, losing the special natures of the substituents on the acceptor molecules. Isomorphism is supported by the formation of complete solid solutions demonstrated for combinations of these forms. The enthalpy and entropy of melting of the present complexes are characterized by rather small values, 4–6 kcal mol−1 and 12–14 cal deg−1 mol−1respectively, indicative of anomalously high thermal motion or disorder in the high-temperature forms. Marked changes in the spectral and electrical properties by the transitions are noted in some cases.

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Phase Diagram of the Pyrene-Picryl Chloride System

Abstract: A differential scanning calorimetric study of the pyrene–picryl chloride system has revealed five molecular compounds with mole ratios of 1: 1, 4: 3, 2: 1, 3: 1, and 4: 1 respectively.

Cited by 4 publications

References 3 publications

Thermal analysis

Thermal analysis

A re-examination of the phase diagram of the binary system pyrene—picryl chloride

Isomorphism in the High-temperature Forms of the Pyrene Complexes with Five Polynitro Aromatic Compounds

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