Photoluminescence of dicyclopentadienylniobium(IV) complexes

Citation
H. Kunkely et A. Vogler, Photoluminescence of dicyclopentadienylniobium(IV) complexes, CHEM P LETT, 302(5-6), 1999, pp. 583-586
Citations number
29
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
302
Issue
5-6
Year of publication
1999
Pages
583 - 586
Database
ISI
SICI code
0009-2614(19990326)302:5-6<583:PODC>2.0.ZU;2-U
Abstract
The absorption spectra of the d(1) complexes (C5H5)(NbCl2)-Cl-IV and [(C5H5 )Nb-IV(2,2'-bipyridine)](2+) show longest-wave length absorptions at 340 an d 350 nm, respectively, which are assigned to LMCT or, more likely, LF tran sitions. Both complexes are luminescent at 77 K with lambda(max) approximat e to 600 nm. The emission is a spin-allowed process and may originate from the lowest LF state. (C) 1999 Elsevier Science B.V. All rights reserved.