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- Title
Transition-metal complexes with bidentate ligands spanning trans-position. Part XVI. X-ray structural and <sup>31</sup>P-NMR solution studies of 2,11-Bis(diethylphosphinomethyl)benzo[c]phenanthrenesilver(I) perchlorate.
- Authors
Camalli, Mercedes; Caruso, Francesco; Chaloupka, Stanislav; Chaloupka, Luigi; Venanzi, Luigi M.
- Abstract
The preparation of complexes {AgX(1c)} (X Cl, Br, I, NO3 and ClO4; 1c = 2,11-bis(diethylphosphinomethyl)benzo[ c]phenanthrene) is reported. The 31P-NMR spectra of the above complexes were recorded and the 1 J(107Ag, 31P) values are compared with the corresponding data for related complexes. The X-ray crystal structure of [Ag(1c)](ClO4) was determined. There are two crystallographically independent molecules in the unit cell each containing two-coordinate silver, the O-atoms of the perchlorate anions being outside bonding range from the central atom. The two molecules, however, show different bonding parameters: Thus for 'molecule 1' P(1)Ag(1)P(2) = 167.6(1)°, Ag(1)P(1) = 2.389(3) and Ag(1)P(2) = 2.393(3) Å, while for 'molecule 2' P(3)Ag(2)P(4) = 164.8(1)°, Ag(2)P(3) = 2.377(3), and Ag(2)P(4) = 2.378(3) Å. These differences are probably due to packing forces in the crystal lattice.
- Publication
Helvetica Chimica Acta, 1988, Vol 71, Issue 4, p703
- ISSN
0018-019X
- Publication type
Article
- DOI
10.1002/hlca.19880710404