Syntheses, crystal structures and properties of copper(II) complexes of 1-amidinoisourea and biguanide nitrates

Copper(II) complexes of amidinoisourea and biguanidine derivatives [Cu{NH2(CNH)NH(CNH)Y}Y]2 (NO3)2, where Y = OR, NHR or NRR (R = Me, Et, Pr, iPr, allyl, Bu, iBu, Bz, Cp, Cy) suitable for inflating gas generating systems were synthesized and characterized by elemental analysis, mass spectrometry and FTIR spectroscopy. The structures of three complexes were determined by X-ray diffraction. Thermal behavior was studied by differential thermal analysis and the decomposition temperatures indicated good thermal stability. Enthalpies of formation of the complexes are influenced by the substituent Y.

Graphical abstractCopper(II) complexes of amidinoisourea and biguanidine derivatives [Cu{NH2(CNH)NH(CNH)Y}Y]2 (NO3)2, where Y = OR, NHR or NRR (R = Me, Et, Pr, iPr, allyl, Bu, iBu, Bz, Cp, Cy) suitable for inflating gas generating systems were synthesized and characterized by elemental analysis, mass spectrometry and FTIR spectroscopy. The structures of three complexes were determined by X-ray diffraction. Thermal behavior was studied by differential thermal analysis and the decomposition temperatures indicated good thermal stability. Enthalpies of formation of the complexes are influenced by the substituent Y.Figure optionsDownload full-size imageDownload as PowerPoint slide