Structural investigations of metal–nitrate complexes. Part VI. Crystal and molecular structure of dinitratotrispyridinecadmium(II)

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX2, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

“…Interestingly, one such is for Zn( N CS) 2 :py (1:4, trans );26 X is a pseudo‐halide but N‐bound here. Adducts of the form MX 2 :L (1:3) are also well‐known for nitrate species, again for a range of metals, with zinc27 and cadmium,28 among them. Here the metal atoms may be considered as lying in a trigonal‐bipyramidal environment, with the small‐“bite” bidentate nitrate ligands each occupying single equatorial sites, the metal atom lying on a site of crystallographic 2‐symmetry.…”

Structural researches on metal complexes of polydentate ligands containing carbonyl and ?-diimine moieties, part V. Heptacoordination in a manganese(II) complex of 2,6-diacetylpyridinebis(picolinoylhydrazone)

“…Further interest arises because the heptacoordination as found in this complex is rather rare for manganese(lI), the only examples being the [Mn(OH2)Y] 2-ion in Mn3(HY)2.10 H20 (Y -= ethylenediaminetetraacetate) (4) and 10,11,12,13-tetrahydrodibenzo-[b, k ]pyrido [g, f] [ 1,4,7,10,13 ]penta-azacyclopentadecin-N s ' Ni0, N 13, N 18_N 19b_di(perchlorato)manganese, C21 H 19NsMn(ClO4)2 (5). spectroscopic properties and the x-ray analysis.…”

Synthesis, crystal structure and electrochemistry properties of [Cd(phen)(H2O)4](ClO4)Cl · H2O

“…The Cd-N distances are in accord with those values previ ously reported for six coordinated cadmium(II) com plexes [23], although they are slightly shorter than those distances normally found in seven and eight coordinated cadmium(II) complexes. Such shorten ing may be explained on the basis of the decreased coordination number of cadmium [24][25][26].…”