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Co-crystals and salts of vanillic acid and vanillin with amines†
CrystEngComm ( IF 2.6 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1039/c7ce02022h
Francoise M. Amombo Noa 1, 2, 3, 4, 5 , Gift Mehlana 1, 2, 3, 4, 5
Affiliation  

Vanillin (VAN) and its oxidized form vanillic acid (VA) have successfully formed a series of co-crystals and salts. VAN formed a co-crystal with isonicotinamide (INM) and a co-crystal hydrate with theobromine (THB). Binary co-crystals of VA with isonicotinamide (INM), hexamethylenetetramine (HEXA), phenazine (PHZ) and pyrazine-N-oxide (PZO) were obtained. Interestingly, a ternary co-crystal resulted from a 1 : 1 : 1 ratio of VA, caffeine (CAF) and nicotinamide (NAM). Salt hydrates were also formed between piperazine (PPZ) and 1,4-diazabicyclo[2.2.2]octane (DABCO) with VA. All co-crystals and salts were characterized by X-ray diffraction techniques, thermal analysis and infrared spectroscopy.

中文翻译:

香草酸和香草醛与胺的共晶体和盐

香兰素(VAN)及其氧化形式的香草酸(VA)已成功形成一系列共晶体和盐。VAN与异烟酰胺(INM)共结晶,水合物与可可碱(THB)共结晶。得到了VA与异烟酰胺(INM),六亚甲基四胺(HEXA),吩嗪(PHZ)和吡嗪-N-氧化物(PZO)的二元共晶体。有趣的是,三元共晶体是由VA,咖啡因(CAF)和烟酰胺(NAM)的比例为1:1产生的。在哌嗪(PPZ)和1,4-二氮杂双环[2.2.2]辛烷(DABCO)之间,还与VA形成了盐水合物。通过X射线衍射技术,热分析和红外光谱对所有共晶体和盐进行了表征。
更新日期:2018-01-08
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