Crystal and molecular structure of tris(ethylenediamine)nickel(II) acetate dihydrate, [Ni(NH2CH2CH2NH2)3](O2C2H3)2.2H2O

Bis[bis(ethylenediamine-N,N')(μN,S-thiocyanato)nickel(II)] Bis(hexafluorophosphate)

“…The significant puckering of the chelating en tings of (1) can be quantified by the dihedral angle (w) between the planes defined, for example, by N2--C2--C3 and C2--C3--N3. The values of ,~ of 55.3 (1) and 53.1 (1) ° for the N2-N3 and N4-N5 en rings are typical of that found in other bis-chelating en complexes (Cramer et al, 1976).…”

Tris(ethane-1,2-diamine-κ2N,N′)nickel(II) diiodide

“…The dihedral angle between the mean planes of the normal ring (31) and the major components of the disordered rings (11 & 21) measures 85.6 (8)° and 83.5 (0)°, while between rings 11 and 21 themselves is 87.2 (7)°. Bond distances within the cation are normal (Allen et al, 2002) and comparable to those in similar structures (Dvorkin et al, 1989(Dvorkin et al, , 1991Farago et al, 1967;Cramer et al 1976;Cramer & Huneke, 1978).…”

“…For related structures, see: Cramer et al (1976); Cramer & Huneke (1978); Korp et al (1980); Raston et al (1978); Swink & Atoji (1960); Wieczorrek (2000). For double salts, see: Alvarado et al (2009); Brewer et al (2007); Dvorkin et al (1989Dvorkin et al ( , 1991; Farago et al (1967).…”

The first-row transition-metal series of tris(ethylenediamine) diacetate complexes [M(en)3](OAc)2 (M is Mn, Fe, Co, Ni, Cu, and Zn)

“…2). The monohydrate of [Ni(en) 3 ](OAc) 2 has been reported previously and demonstrates a different hydrogen-bonding network incorporating the water molecules (Cramer et al, 1976). The similar compound tris(ethylenediamine)nickel(II) bis(trifluoroacetate) has been reported with a network involving N-HÁ Á ÁF hydrogen bonds (Urrutigoïty et al, 1996).…”