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通过X射线粉末衍射、核磁共振波谱法对制得的DAST源粉进行表征,确证其分子结构并计算出源粉纯度为99.7%。然后使用该DAST源粉配制其甲醇溶液,并利用溶液降温法通过自发成核过程培养出尺寸为(2~3)mm×(2~3)mm×(0.3~0.5)mm的DAST晶体。
The DAST source powder was characterized by X-ray powder diffraction and nuclear magnetic resonance spectroscopy. The molecular structure was confirmed and the purity of the source powder was calculated to be 99.7%. The DAST source powder was then used to prepare a methanol solution and a DAST crystal with a size of (2-3) mm × (0.3-0.5) mm was grown by spontaneous nucleation using a solution cooling method.