The crystal structure of
the ethanol solvate of the title compound, [Hg(phen)3](CF3S03)2
(phen =1,10-phenanthroline), has been determined at 295(1) K by single-crystal
X-ray diffraction and refined by least squares to a residual of 0�043 for 2939
'observed' reflections. Crystals are monoclinic: C2/c, a 25�25(1), b 10�960(4), c 18�949(6) �, β 129�32(2)�,
Z 4. The cation is centred on a crystallographictwofold axis and has
approximate D3 point
symmetry. The deviation of the mercury(II) environment from octahedral symmetry
toward the trigonal-prismatic limit is considerable, the mean trans N-Hg-N angle being 154�52�. <Hg-N> is 2�400
�. The unit cell volume is considerablydependent on
crystallization solvent, being larger for the ethanol solvate than for
solvent-free crystals obtained from aqueous solution.
Anisol (I) liefert bei der Umsetzung mit überschüssigem Thalliumtrifluoracetat (II) das dithallierte Produkt (III), dessen Substitutionspositionen durch Behandlung mit NaJ unter Bildung von (IV) erhärtet werden.
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