Structure Determination of Organic Compounds. Table of Spectral Data. Third Completely Revised and Enlarged English Edition By Ernoe Pretsch (ETH Zurich), Philippe Bühlmann (University of Tokyo), and Christian Affolter (Muenchringen, Switzerland). Springer-Verlag:  Berlin, Heidelberg, New York. 2000. xvi + 422 pp. $42.00. ISBN 3-540-67815-8

2001 ◽  
Vol 123 (10) ◽  
pp. 2468-2468
Author(s):  
Ernö Pretsch ◽  
Thomas Clerc ◽  
Joseph Seibl ◽  
Wilhelm Simon

Author(s):  
Ernö Pretsch ◽  
Thomas Clerc ◽  
Joseph Seibl ◽  
Wilhelm Simon

1995 ◽  
Vol 2 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Angel Garcia-Raso ◽  
Juan J. Fiol ◽  
Elies Molins ◽  
Antonia M. Calafat ◽  
Patricia A. Marzilli ◽  
...  

The first X-ray structure of an isatin (2,3-indolinedione, isaH) metal complex, bis(isatinato)memury(II) (C16H8N2O4Hg) (1), was determined. (1) was obtained from the reaction of isaH with mercury(II) acetate in methanol. Analogously, treatment of sodium saccharinate and mercury(II) acetate in methanol yielded Hg(saccharinato)2•0.5CH3OH (3). (1) crystallizes in the monoclinic system, space group P21/a with a = 7.299(1) Å, b = 8.192(1) Å, c = 11.601(1) Å , β = 105.82(1)°, V = 667.4 Å3, Z = 2, Dcalc = 2.452 g cm−3, MoKα radiation(λ = 0.71073 Å), μ = 115.5 cm-1, F(000) = 460, 21(1) °C. The structure was refined on the basis of 2023 observed reflections to R= 0.044. The two deprotonated, non coplanar isa ligands are trans to each other in a head to tail orientation and bound to the Hg through the nitrogen in a linear N-Hg-N arrangement. The Hg atom is at the center of symmetry of the complex and displaced by 0.62 Å from the two planes of the isa ligands (τ Hg-N1-C2-O2= -16°). The Hg-N bond length is 2.015 Å. Noπ-aryl-memury(ll)-π-aryl stacking interaction was observed either in the solid state or in the solution state. The IR, electronic, and H1 and C13NMR spectral data of (1) and (3) suggest binding of the memury to the heterocyclic nitrogen, in agreement with the crystal structure determination of (1).


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