The hexanitrates of the six‐carbon sugars mannitol and sorbitol were prepared and studied to gain insight in their relative stabilities. Synthesis and characterization of these materials resulted in the identification of two new crystalline polymorphs, one for each hexanitrate. Mannitol hexanitrate (MHN) exposed to elevated temperatures exhibited a different structure when measured by x‐ray diffraction (XRD) and Raman spectroscopy; however, no differences were observed in the thermal behavior. Sorbitol hexanitrate (SHN) has two distinct crystalline polymorphs that result in different melting behavior and differences in Raman and XRD. Thermal stability of these hexanitrates was also examined; despite being isomers, SHN and MHN differ in their long‐term thermal stability.

中文翻译：

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糖醇己酸酯的表征

制备并研究了六碳糖甘露醇和山梨糖醇的六硝酸盐，以了解其相对稳定性。这些材料的合成和表征导致鉴定出两种新的晶体多晶型物，每种六硝酸盐各一种。用X射线衍射（XRD）和拉曼光谱测量时，暴露于高温的六硝酸甘露醇（MHN）表现出不同的结构；然而，在热行为方面未观察到差异。六硝酸山梨糖醇（SHN）具有两种不同的结晶多晶型物，它们导致不同的熔融行为以及拉曼和XRD的差异。还检查了这些六硝酸盐的热稳定性。尽管是异构体，但SHN和MHN的长期热稳定性有所不同。