A series of linear primarypolyamines H2N–CH2–(CH–NH2)n–CH2–NH2 (1 ≤ n ≤ 3) was prepared from the correspondingpolyalcohols. The polyamines were isolated as HCl adducts and the acidity constants in aqueous solution were determined. The crystal structure of the fully protonated tetraamine (n = 2) was elucidated by an X-ray diffraction study. Complex formation of the triamine (n = 1) with Ni2+, Cu2+
从相应的多元醇制备了一系列线性伯多胺 H2N–CH2–(CH–NH2)n–CH2–NH2 (1 ≤ n ≤ 3)。多胺被分离为 HCl 加合物,并测定水溶液中的酸度常数。通过 X 射线衍射研究阐明了完全质子化的四胺 (n = 2) 的晶体结构。在水溶液中重新研究了三胺 (n = 1) 与 Ni2+、Cu2+、Zn2+、Cd2+ 的复合形成。各种物种 MxLyHz 的 pH 依赖性形成是通过电位滴定确定的,并与以前的报告进行了比较。Cu配合物[CuL2]Cl2的晶体结构表现出一种链状结构,具有五配位的CuII中心,其中三胺配体的两个氨基与一个Cu中心配位,而其中一个配体的第三个氨基与相邻的 Cu 原子键合。该化合物在链内的 CuII 中心之间显示出弱的反铁磁耦合相互作用。
A Concise and Safe Synthesis of 1,2,3‐Propanetriamine (PTA)
作者:Fabio Travagin、Giovanni B. Giovenzana
DOI:10.1002/ejoc.202200012
日期:2022.3.15
An efficient 2-step synthesis leads to 1,2,3-propanetriamine (PTA) in 73 % overall yield from cheap and widely available starting materials. Compared to previously reported protocols, no highly toxic reagents or sensitive energetic compounds are involved, allowing the preparation of multigram amounts of this important building block.
Energy-Minimized Structures and Calculated and Experimental Isomer Distributions in the Hexaaminecobalt(III) system [Co(trap)2]3+ (trap = 1,2,3-propanetriamine)
作者:Peter Comba、Trevor W. Hambley、Luc Zipper
DOI:10.1002/hlca.19880710805
日期:1988.12.14
The two isomers of [Co(trap)2]3+ (meso-[Co(trap)2]3+ and rac-[Co(trap)2]3+; trap = 1,2,3-propanetriamine) have been studied by strain-energy minimization. The two isomers have been separated preparatively by fractional crystallization, and fully characterized by 13C-NMR and electronic spectroscopy, and microanalyses. The calculated isomer distribution (rac/meso = 60%: 40%) is in good agreement with