WEAK M-H-CENTER-DOT-CENTER-DOT-CENTER-DOT-H-C AND M-CL-CENTER-DOT-CENTER-DOT-CENTER-DOT-H-C INTERACTIONS IN ORTHOMETALATED IRIDIUM AND RHODIUM COMPLEXES

Citation
Ly. Huang et al., WEAK M-H-CENTER-DOT-CENTER-DOT-CENTER-DOT-H-C AND M-CL-CENTER-DOT-CENTER-DOT-CENTER-DOT-H-C INTERACTIONS IN ORTHOMETALATED IRIDIUM AND RHODIUM COMPLEXES, Chemistry (Weinheim), 4(9), 1998, pp. 1641-1646
Citations number
33
Categorie Soggetti
Chemistry
Journal title
ISSN journal
09476539
Volume
4
Issue
9
Year of publication
1998
Pages
1641 - 1646
Database
ISI
SICI code
0947-6539(1998)4:9<1641:WMAM>2.0.ZU;2-5
Abstract
Four different types of intramolecular MX ... C interactions have been observed in a series of five, structurally very similar, orthometalat ed iridium(III) and rhodium(III) complexes. For X=H and M=Ir or Rh, tw o-center or three-center interactions with MH ... HC distances of 1.80 - 1.83 (M = Ir) or 2.00 -2.20 Angstrom (M = Rh) were observed. For X= Cl the MCl ... HC distances of the three-center arrangement (M = Ir) w ere in the range of 2.38-2.60 Angstrom, while values of 2.41-2.89 Angs trom were found for the four-center geometry (M = Rh), These weak inte ractions open new perspectives for the mechanism of cyclometalations.