Crystal Structure Of A Dinuclear Co Complex With Doubly Bridged Fluorides: Di-Mu-Fluoride Bis{(2-Pyridylmethyl)Bis(2-Quinolylmethyl)Amine} Dicobalt(Ii) Bis(Tetrafluoroborate), [Co-2(Mu-F)(2)(Pbqa)(2)](Bf4)(2)
X-RAY STRUCTURE ANALYSIS ONLINE(2019)
Abstract
The reaction of a methanol solution containing Co(BF4)(2)center dot 6H(2)O and (2-pyridylmethyl)bis(2-quinolylmethyl)amine (pbqa) afforded a dinuclear cobalt(II) complex, [Co-2(mu-F)(2)(pbqa)(2)](BF4)(2), where the two metal centers are doubly bridged by two fluoride ions. BF4- is a fluoride source. A temperature-dependent magnetic susceptibility measurement reveal that a strong spin orbit contribution with a zero-field splitting effect of two high-spin Co(II) ions. It crystallizes in the monoclinic space group C2/c with a = 24.9600(9)angstrom, b = 11.1533(3)angstrom, c = 20.0575(6)angstrom, alpha = 90 degrees, beta = 109.439(4)degrees, gamma = 90 degrees, V = 5265.4(3)angstrom(3), D-calc = 1.535 g/cm(3), and Z = 4. The R1 [I > 2 sigma(I)] and wR2 (all data) values are 0.0403 and 0.1018, respectively, for all 7897 independent reflections.
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Key words
dinuclear co complex,bridged fluorides,crystal structure,bis{2-pyridylmethylbis2-quinolylmethylamine}
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