, Volume 143, Issue 12, pp 1637-1642
Date: 23 Oct 2012

Spermine adducts of metal alkoxides

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Abstract

Reaction of spermine with M(OiPr)4 (M = Ti, Zr) in toluene solution results in the formation of crystalline coordination polymers [M2(OiPr)8(C10H26N4)]. In these compounds, only the terminal primary amino groups are coordinated to the metal centers. The adducts are stabilized by intramolecular hydrogen bonds. NMR spectroscopy indicates that only the adduct with Zr(OiPr)4 is stable in benzene solution, whereas it dissociates in the case of Ti(OiPr)4. When dichloromethane was used as the solvent, spermine dihydrochloride crystallized from the solution.

Graphical abstract

An erratum to this article can be found at http://dx.doi.org/10.1007/s00706-013-0929-3.