In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Iron(II) complexes of new hexadentate 1,1,1-tris-(iminomethyl)ethane podands, and their 7-methyl-1,3,5-triazaadamantane rearrangement products, published in 2012, which mentions a compound: 948552-36-1, mainly applied to pyridylmethylene triazaadamantane iron complex preparation crystal structure; iron heterocyclic aldehyde aminomethyl methyldiaminopropane Schiff complex preparation structure, Quality Control of 1H-Pyrazole-5-carbaldehyde.
New iron(II) podand complexes were prepared, by condensation of 2-(aminomethyl)-2-methyl-1,3-diaminopropane with 3 equiv of a heterocyclic aldehyde in the presence of hydrated Fe[BF4]2 or Fe[ClO4]2 as templates. The 2-(aminomethyl)-2-methyl-1,3-diaminopropane was prepared in situ by deprotonation of its trihydrochloride salt. The chloride must be removed from these reactions by precipitation with silver, to avoid the formation of the alternative 2,4,6-trisubstituted-7-methyl-1,3,5-triazaadamantane condensation products, or their FeCl2 adducts. The crystal structures of two 2,4,6-tri(pyridyl)-7-methyl-1,3,5-triazaadamantane-containing species are presented, and contain two different geometric isomers of this tricyclic ring with three equatorial, or two equatorial and one axial, pyridyl substituents. Both structures feature strong C-H···X (X = Cl or F) hydrogen bonding from the aminal C-H groups in the triazaadamantane ring. Five iron(II) podand complexes were successfully obtained, all of which contain low-spin iron centers, and three of which were characterized by x-ray crystallog.
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