Adducts from mercury(I) and mercury(II) compounds with Bispyrazolylalkanes.X-Ray crystal structure of Bis(3,5-dimethylpyrazol-l-yl)methane(dicyano)-mercury(II)
作者： Augusto Cingolani , Adriana Lorenzotti , Giancarlo Gioia Lobbia , Dante Leonesi , Flavio Bonati
DOI: 10.1016/S0020-1693(00)81738-7
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摘要: Abstract The 1:1 adducts between thebis(3,5-dimethylpyrazol-1-yl)methane (L′-L′) or 2,2′-bis(pyrazol- 1-yl)propane (L″L″) ligand and HgX 2 (with X = Cl, CN CO CF 3 ) have been obtained as well [(L′L′) ]Hg(ClO 4 the mercury(I) derivative (ligand) Hg (ClO . characterized from analytical spectral data (IR, proton 13 C NMR). Four-coordinated mercury is present in (L′L′)Hg(CN) , which metal-(NN) ring adopts an asymmetric boat form. molecular parameters are significantly different for two independent molecules, CHgC angles Hg-N distances being 163.1(9)°and 2.55(1) plus 2.70(1) A one case, 148.2(8)° 2.40(1) 2.51(1) A, other; correspondingly N-Hg-N angle, ‘bite’ of ligand, ranges 79.0(5)° to 71.7(4)°, a value outside range previously reported.
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