Thermodynamic stereoselectivity assisted by weak interactions in metal complexes. Chiral recognition of L/D-amino acids by the copper(II) complex of 6-deoxy-6-[4-(2-aminoethyl)imidazolyl]cyclomaltoheptaose

Author(s):  
Raffaele P. Bonomo ◽  
Vincenzo Cucinotta ◽  
Giuseppe Maccarrone ◽  
Enrico Rizzarelli ◽  
Graziella Vecchio
Chemistry ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 199-227
Author(s):  
Young Hoon Lee ◽  
Jee Young Kim ◽  
Sotaro Kusumoto ◽  
Hitomi Ohmagari ◽  
Miki Hasegawa ◽  
...  

Analysis of the weak interactions within the crystal structures of 33 complexes of various 4′-aromatic derivatives of 2,2′:6′,2″-terpyridine (tpy) shows that interactions that exceed dispersion are dominated, as expected, by cation⋯anion contacts but are associated with both ligand–ligand and ligand–solvent contacts, sometimes multicentred, in generally complicated arrays, probably largely determined by dispersion interactions between stacked aromatic units. With V(V) as the coordinating cation, there is evidence that the polarisation of the ligand results in an interaction exceeding dispersion at a carbon bound to nitrogen with oxygen or fluorine, an interaction unseen in the structures of M(II) (M = Fe, Co, Ni, Cu, Zn, Ru and Cd) complexes, except when 1,2,3-trimethoxyphenyl substituents are present in the 4′-tpy.


1994 ◽  
Vol 116 (22) ◽  
pp. 10267-10274 ◽  
Author(s):  
Roberto Corradini ◽  
Arnaldo Dossena ◽  
Giuseppe Impellizzeri ◽  
Giuseppe Maccarrone ◽  
Rosangela Marchelli ◽  
...  

2010 ◽  
Vol 91 (5) ◽  
pp. 491-491
Author(s):  
G. Bergson ◽  
C. Halldin ◽  
H. Lundqvist ◽  
B. Långström ◽  
M. Malmqvist

1980 ◽  
Vol 11 (25) ◽  
Author(s):  
S. S. PEACOCK ◽  
D. M. WALBA ◽  
F. C. A. GAETA ◽  
R. C. HELGESON ◽  
D. J. CRAM

2002 ◽  
Vol 57 (7) ◽  
pp. 810-818 ◽  
Author(s):  
Walter Ponikwar ◽  
Peter Mayer ◽  
Wolfgang Beck

The reactions of [(η3-C3H5)2Rh-μ-Cl]2 with the anions of α-amino acids (glycine, L-alanine, L-valine, L-isoleucine, L-proline, L-phenylalanine, L-phenylglycine, L-thyrosine) afford the N,O-chelates (η3-C3H5)2Rh(α-amino carboxylate). For complex (η3-C3H5)2Rh(glycinate) dynamic behaviour in solution could be observed by 1H NMR. The structure of (η3-C3H5)2Rh(L-prolinate) was determined by X-ray diffraction.


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