1. N,N'-Bis[(E)-2-Benzyl-idenepropylidene]ethane-1,2-diamine
Aliakbar Dehno Khalaji, Seik Weng Ng Acta Crystallogr Sect E Struct Rep Online. 2008 Aug 16;64(Pt 9):o1771.doi: 10.1107/S1600536808025919.
The two independent mol-ecules in the asymmetric unit of the title Schiff base, C(22)H(24)N(2), lie across centers of inversion. The C=N double bonds are in a trans configuration.
2. Crystal structure of bis-{4-[(4-methyl-benz-yl)-oxy]-N'-(4-methyl-benzyl-idene)benzohydrazidato}nickel(II)
Md Hasan Al Banna, Md Belayet Hossain Howlader, Ryuta Miyatake, Md Chanmiya Sheikh, Ennio Zangrando Acta Crystallogr E Crystallogr Commun. 2022 Sep 30;78(Pt 10):1081-1083.doi: 10.1107/S2056989022009392.eCollection 2022 Oct 1.
In the title complex, [Ni(C23H21N2O2)2], the central NiII atom is located on an inversion centre and exhibits a slightly distorted square-planar N2O2 coordination environment. A trans-configuration of the N,O chelating ligands results from the imposed site symmetry of the central NiII atom. In the crystal, individual mol-ecules stack along the a axis through weak π-π stacking inter-actions between the phenyl rings.