@article {1384,
	title = {Synthesis, solid-state structures, and EPR spectroscopic studies on polycrystalline and single-crystal samples of alpha-diimine cobalt(II) complexes},
	journal = {European Journal of Inorganic Chemistry},
	number = {23},
	year = {2006},
	note = {<p>120IETimes Cited:4Cited References Count:56</p>
},
	month = {Dec 4},
	pages = {4761-4769},
	abstract = {<p>Cobalt compounds of the general formula [COX2(alpha-diimine)], where X = Cl or I and the alpha-diimines are 1,4-diaryl-2,3-dimethyl-1,4-diaza-1,3-butadiene (Ar-DAB) and bis(aryl)acenaphthenequinonediimine (Ar-BIAN) were synthesized by the direct reaction of the anhydrous cobalt salts CoCl2 or CoI2 and the corresponding alpha-diinline ligand in dried CH2Cl2. The synthesized compounds are [Co(Ph-DAB)Cl-2] (1a), [Co(o,o{\textquoteright},p-Me3C6H2-DAB)Cl-2] (1b), and [Co(o,o{\textquoteright}iPr(2)C(6)H(3)-DAB)Cl-2] (1c) with the ligands Ar-DAB, and also [Co(o,o{\textquoteright},p-Me3C6H2-BIAN)I-2] (2{\textquoteright}b) with the ligand Ar-BIAN. The crystal structures of all the compounds were solved by single-crystal X-ray diffraction. In all cases the cobalt atom is in a distorted tetrahedron, which is built up of two halide atoms and two nitrogen atoms of the alpha-dimune ligand. X-band EPR measurements of polycrystalline samples performed on compounds 1b, 1c, and 2{\textquoteright}b indicate a high-spin Col, ion (S = 3/2) in an axially distorted environment. Single-crystal EPR experiments on compounds 1b and 1c allowed us to evaluate the orientation of the g tensor in the molecular frame. (c) Wiley-VCH Verlag GmbH \&amp; Co.</p>
},
	keywords = {alpha-diimine ligands, bian ligands, cobalt(ii) complexes, coordination strength, electron-paramagnetic-resonance, epr spectroscopy, esr-spectra, ethylene, ground-state, high-spin cobalt(ii), magnetic-properties, metal, nitrogen ligands, single-crystal x-ray diffraction},
	isbn = {1434-1948},
	url = {<Go to ISI>://000243077400005},
	author = {Rosa, V. and Gonzalez, P. J. and Aviles, T. and Gomes, P. T. and Welter, R. and Rizzi, A. C. and Passeggi, M. C. G. and Brondino, CD}
}
