REACTIVITY OF THE [(NI(C6F5)2(MU-OH))2]2- ION TOWARDS BETA-DIKETONES, 8-HYDROXIQUINOLINE AND HETEROCYCLIC THIONES - CRYSTAL-STRUCTURE OF [NBU4][NI(C6F5)2(C5H4NS-2)]

The di-mu-hydroxo-complex [NBu4]2[{Ni(C6F5)2(mu-OH)}2] reacts with protic electrophiles H(LL) in the 1/2 molar ratio to give (NBu4)[Ni(C6F5)2(LL)] [(LL) = acetylacetonate (acac) (I), benzoylacetonate (bzac) (II), 8-hydroxyquinolinate (oxin) (III), pyridine-2-thiolate (pyt) (IV), pyrimidine-2-thiolate (pymt) (V), 2,6-dimethyl-5-oxo-1,2,4-triazine-3-thiolate (tazt) (VI), N-methylimidazole-2-thiolate (mimt) (VII), thiazolidine-2-thiolate (tzt) (VIII), benzoimidazole-2-thiolate (bimt) (IX) or benzothiazole-2-thiolate (btzt) (X)]. The new compounds have been characterized by analysis, conductivity measurements, and spectroscopic (IR, UV-VIS, H-1, and F-19) methods. The crystal structure of compound IV has been determined by X-ray diffraction. It crystallizes in the monoclinic space group P2(1)/n with a 11.7076(4), b 22.183(1), c 14.0280(6) angstrom, beta-105.012(3)-degrees. Final R = 0.075 and R(w) = 0.067 based on 3815 reflections.