2,4,6-Trinitrofenol ve Trinitrotoluen ile 1-Bromopiren Arasında Oluşan Yeni Enerjik Ko-kristalin Karakterizasyonu ve Enerjik Performans Özellikleri

Abstract

Ko-kristallendirme, 1:1 molar oranda Pikrik asit ile 1-Bromopiren ve TNT ile 1-Bromopiren arasında çözücü buharlaştırma yöntemiyle hazırlandı ve ko-kristallerin yapısı tek kristal ve toz X ışını kırınımı, Kütle spektrometresi, Kızılötesi spektroskopisi ile karekterize edildi. Kırınım verileri analizi, ko-kristallerin öncelikle donor-alıcı (elektron verici-elekton alıcı) π…π istifleme etkileşimlerinden oluştuğunu ortaya koydu. Darbe hassasiyeti testleri sonucu yapılan ölçümler ile TNT: 1-Bromopiren ve Pikrik Asit: 1-Bromopiren ko-kristalleri, saf TNT, Picric Acid'e kıyasla önemli ölçüde azaltılmış darbe duyarlılığını göstermiştir. Elde edilen yeni enerjik ko-kristaller detaylı calışması ile  yoğunluk, oksijen dengesi, erime noktası, ayrışma sıcaklığı, patlama performansı (hız, basınç) gibi önemli fiziksel ve kimyasal özelliklerin değiştiğini ortaya koymaktadır. Ko-kristalizasyon calişmasi ile  yeni keşfedilen alternatif enerjik maddelerin iyileştirilmiş özelliğe sahip olduğunu ve mevcut enerjik materyalin fiziksel ve kimyasal özelliklerini değiştirmenin etkili bir yöntem olduğunu vurgulamaktadır.

Keywords

• Enerjik madde
• 246-Trinitrofenol
• Trinitrotoluen
• Ko-kristallenme
• Patlayıcı Hassasiyeti
• Patlayıcı Performansı

Characterization and Energetic Performance Properties of New Energetic Co-crystals formed between 2, 4, 6-Trinitrophenol, Trinitrotoluene and 1-Bromopyrene

Abstract

A 1:1 co-crystals of Picric Acid with 1-Bromopyrene and TNT with 1-Bromopyrene were prepared by a solvent evaporation method, and the structure of the co-crystals were determined by single-crystal and powder X-ray diffraction, Mass spectrometry, Infrared spectroscopy techniques. The diffraction data analysis revealed that the co-crystals are primarily formed through donor-acceptor π…π stacking interactions. The TNT:1-Bromopyrene and Picric Acid:1-Bromopyrene co-crystals indicates significantly reduced impact sensitivity relative to pure TNT, Picric Acid. A detailed study of the cocrystals formed reveals a modification of crucial properties including density, oxygen balance, melting point, decomposition temperature detonation performance (velocity, pressure). The acquired results highlight that co-crystallization provides the newly discovered energetic material with attractive properties, and is an effective way to alter existing energetic material. 

Keywords

• Energetic material
• 246-Trinitrophenol
• Trinitrotoluene
• Co-crystallisation
• Explosive sensitivity
• Explosive performance

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