cis-Bis(dicyanamido)bis(1,10-phenanthroline)manganese(II) and cis-bis(dicyanamido)bis(1,10-phenanthroline)zinc(II)

cis-Bis(dicyanamido)bis(1,10-phenanthroline)nickel(II)

“…The crystal structure of (I) consists of discrete molecules and is similar to those of the reported complexes M(dca) 2 (1,10-phen) 2 (M = Cu, Mn and Zn; Potocnak et al, 1995;Wang et al, 2000). The coordination environment of the Ni atom can be described as a slightly distorted octahedron.…”

Bis(4,7-dichloro-1,10-phenanthroline-κ2N,N′)bis(dicyanamido-κN)copper(II)

“…Similar cis coordination of two dca ligands was observed in [M(phen) 2 (dca) 2 ] compounds with M = Ni (Wu et al, 2004), Cd (Lan et al, 2005), Mn and Zn (Wang et al, 2000) and Cu (Potočňák et al, 1995), which are mutually isostructural. The equatorial plane in the title compound is occupied by three N atoms of two 4,7-Cl-phen molecules with Cu-N distances between 2.0267 (17) and 2.0575 (17) Å while the fourth position is occupied by N1 atom of dca at a shorter distance of 1.9707 (18) Å (Table 1) The structure of the title compound is stabilized by weak C-H···N hydrogen bonds with cyanide N atoms of the dca ligands as acceptors ( Table 2).…”

Tetraaqua(1,10-phenanthroline-κ2N,N′)manganese(II) sulfate dihydrate

“…The Mn atom displays a distorted octahedral environment ( Table 1). The angle that is most distorted from the ideal value of 180 is O3ÐMnÐN2 of 161.76 (10) , and the phen N1ÐMnÐN2 chelate angle of 73.33 (10) is as expected for a manganese complex (Drew et al, 1989;McCann et al, 1997;Ramalakshmi et al, 1999;Wang et al, 2000;Deng et al, 2000). The O atoms of the remaining two water molecules complete the octahedron through coordination in the axial positions.…”