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A comparative study of the structural organization of nickel(II) and copper(II) complexes with dialkyl-substituted and cyclic dithiocarbamate ligands by X-ray single-crystal diffraction, EPR, and CP/MAS C-13 and N-15 NMR
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Russian Adademy of Sciences.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Russian Adademy of Sciences.
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2002 (English)In: Russian Journal of Inorganic Chemistry, ISSN 0036-0236, E-ISSN 1531-8613, Vol. 47, no 3, p. 410-422Article in journal (Refereed) Published
Abstract [en]

X-ray single-crystal diffraction, EPR, and CP/MAS C-13 and N-15 NMR were used for studying the structures and spectral properties of nickel(II) and copper(II) dithiocarbamate complexes [M(S2CNR2)(2)] (R = CH3, C2H5, C3H7, i-C3H7 or R-2 = (CH2)(5), (CH2)(6), (CH2)(4)O). The [CUS4] chromophores in the lattice of nickel(II) complexes have, predominantly, a square-planar structure. The chromophore geometry is somewhat distorted only in bis(morpholinedithiocarbamato)copper(II). Differences in the N-15 NMR isotropic chemical shifts of dialkyldithiocarbamate ligands were interpreted in terms of a unified conceptual approach based on the concept of joint manifestation of the mesomeric effect of dithiocarbamate groups and the inductive effect of alkyl substituents. Experimental NMR (C-13, N-15) signals were assigned to the structural positions of atoms in allowed molecular structures. Refined structural data on [Ni{S2CN(C3H7)(2)}(2)] point to the occurrence of two types of structurally nonequivalent complex molecules; the [Ni(S2CN(CH2)6)2] complex is characterized by the intramolecular nonequivalence of dithiocarbamate ligands.

Place, publisher, year, edition, pages
2002. Vol. 47, no 3, p. 410-422
National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
Identifiers
URN: urn:nbn:se:ltu:diva-6744Local ID: 5065d950-dcf2-11db-9cae-000ea68e967bOAI: oai:DiVA.org:ltu-6744DiVA, id: diva2:979630
Note
Validerad; 2002; 20070328 (bajo)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Ivanov, Alexander V.Forsling, Willis

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