16 research outputs found
Bis(1-carbamimidoyl-2-ethylisourea)copper(II) dinitrate
The copper(II) complex, [Cu(C4H10N4O)2](NO3)2 or [Cu(L
1e)2](NO3)2, where L
1e is 1-carbamimidoyl-2-ethylisourea, was obtained from a 1:2 molar ratio of copper(II) nitrate hemipentahydrate with 2-cyanoguanidine in ethanol. The crystal structure consists of the centrosymmetric [Cu(L
1e)2]2+ cation and two NO3
− counter-anions. The cation exhibits four-coordinate bonding of the two N,N-bidentate ligands and the CuII atom through the N-donor atoms, yielding a square-planar CuN4 geometry. Intermolecular N—H⋯O hydrogen bonds link between the cation and and counter-anion, forming a two-dimentional layered structure extending parallel to (01)
Bis(1-carbamimidoyl-2-ethylisourea)copper(II) bis(perchlorate)
The title complex, [Cu(C4H10N4O)2](ClO4)2 or [Cu(L
1e)2](ClO4)2, where L
1e is 1-carbamimidoyl-2-ethylisourea, was obtained from the ethanolysis reaction of 2-cyanoguanidine and copper(II) perchlorate hexahydrate in a 2:1 molar ratio. The two bidentate L
1e ligands are coordinated to the CuII center through N-donor atoms, leading to the CuN4 chromophore. The CuII environment is slightly distorted square-planar, with a dihedral angle of 5.17 (6)° between the two six-membered chelate rings. One of the ClO4
− anions is disordered over two positions in a 0.6:0.4 ratio