1341222-86-3Relevant academic research and scientific papers
Nickel(IV) dithiocarbamato complexes of the [Ni(ndtc)3]X type: X-ray structure of [Ni(hmidtc)3][FeCl4]
Pastorek, Richard,Starha, Pavel,Peterek, Tomas,Travnicek, Zdenek
, p. 2795 - 2800 (2011)
A series of fourteen octahedral nickel(IV) dithiocarbamato complexes of the general formula [Ni(ndtc)3]X·yH2O {ndtc stands for the appropriate dithiocarbamate anion, X stands for ClO4- (1-8; y = 0) or [FeCl4]- (9-14; y = 0 for 9-12, 1 for 13 and 0.5 for 14} was prepared by the oxidation of the corresponding nickel(II) complexes, i.e. [Ni(ndtc)2], with NOClO4 or FeCl 3. The complexes, involving a high-valent NiIVS 6 core, were characterized by elemental analysis (C, H, N, Cl and Ni), UV-Vis and FTIR spectroscopy, thermal analysis and magnetochemical and conductivity measurements. The X-ray structure of [Ni(hmidtc) 3][FeCl4] (9) was determined {it consists of covalently discrete complex [Ni(hmidtc)3]+ cations and [FeCl 4]- anions} and this revealed slightly distorted octahedral and tetrahedral geometries within the complex cations, and anions, respectively. The Ni(IV) atom is six-coordinated by three bidentate S-donor hexamethyleneiminedithiocarbamate anions (hmidtc), with Ni-S bond lengths ranging from 2.2597(5) to 2.2652(5) , while the shortest Ni...Cl and Ni...Fe distances equal 4.1043(12), and 6.2862(6) , respectively. Moreover, the formal oxidation state of iron in [FeCl4]- as well as the coordination geometry in its vicinity was also proved by 57Fe Moessbauer spectroscopy in the case of 9.
