| Publication Type |
Journal Article |
| Title |
Synthesis, structure and physical properties of tetrabutylammonium salts of nickel complexes with the new ligand dcbdt=4,5-dicyanobenzene-1,2-dithiolate, [Ni(dcbdt)(2)](z-) (z = 0.4, 1, 2) |
| Authors |
Dulce Simão H Alves Dulce Belo Sandra Rabaca EB Lopes IC Santos V GAMA M. Teresa Duarte Rui T. Henriques H Novais Manuel Almeida |
| Groups |
|
| Journal |
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY |
| Year |
2001 |
| Month |
December |
| Volume |
|
| Number |
12 |
| Pages |
3119-3126 |
| Abstract |
The synthesis and characterization of the new aromatic ortho-dithiol, 4,5-dicyanobenzene-1,2-dithiol (3) is reported. This compound was used to prepare tetrabutylammonium salts of novel nickel complexes; the nickel(II) salt (nBu(4)N)(2)-[Ni(dcbdt)(2)] (4), the nickel(III) salt (nBu(4)N)(2)[Ni(debdt)(2)](2) (5), and the partially oxidized Ni-III/IV salt (nBu(4)N)(2)[Ni(dcbdt)(2)](5) (6). (dcbdt = 4,5-dicyanobenzene-1,2-dithiolate). The Ni-II complex presents a square-planar coordination geometry and is diamagnetic, while in the paramagnetic Ni-III complex the Ni(dcbdt)(2) units are strongly dimerized with the metal atom in a square-pyramidal coordination geometry and its magnetic susceptibility follows a singlet-triplet model with an antiferromagnetic coupling J = 897 K. The partially oxidized Ni-III/IV complex 6 presents a weakly temperature-dependent paramagnetism of 5-6 . 10(-4) emu/mol and a room-temperature electrical conductivity of 0.15 S/cm following a semiconducting regime. |
| DOI |
http://dx.doi.org/ |
| ISBN |
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| Publisher |
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| Book Title |
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| ISSN |
1434-1948 |
| EISSN |
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| Conference Name |
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| Bibtex ID |
ISI:000172505300019 |
| Observations |
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