Charge transfer and f-f transitions studied by photoacoustic spectroscopy of [R(NO3)2(PicBH)2]NO3 and [R(NO3)3(PicBH)2] complexes (R - Rare earth ion)

Guskos, N; Papadopoulos, G; Majszczyk, J; Typek, J; Wabia, M; Likodimos, V; Paschalidis, DG; Tossidis, IA; Aidinis, K

dc.contributor.author	Guskos, N	en
dc.contributor.author	Papadopoulos, G	en
dc.contributor.author	Majszczyk, J	en
dc.contributor.author	Typek, J	en
dc.contributor.author	Wabia, M	en
dc.contributor.author	Likodimos, V	en
dc.contributor.author	Paschalidis, DG	en
dc.contributor.author	Tossidis, IA	en
dc.contributor.author	Aidinis, K	en
dc.date.accessioned	2014-03-01T02:49:23Z
dc.date.available	2014-03-01T02:49:23Z
dc.date.issued	2003	en
dc.identifier.issn	05874246	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34567
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0037302588&partnerID=40&md5=fda2964bf913953d7f935cc03faeac2d	en
dc.title	Charge transfer and f-f transitions studied by photoacoustic spectroscopy of [R(NO3)2(PicBH)2]NO3 and [R(NO3)3(PicBH)2] complexes (R - Rare earth ion)	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	High-resolution photoacoustic spectra of trinitrato-bis[N-(2-pyridyl-methylene)-N'-benzoyl-hydrazine]R(III), (R = La, Ce, Pr), and binitratobis[N-(2-pyridylmethylene)-N'-benzoyl-hydrazine]R(III) nitrate (R=Y, Nd, Eu, Yb, Tb, Gd, Ho, Dy, Er) complexes, in the visual region, were studied for powder samples. Very intense photoacoustic spectra of various shapes were attributed to the intraligand transitions of the π → π* type located mainly on the C=N group and the n → π* transitions located on the carbonyl group. The intensity of these transitions essentially depends on the type of rare earth ions. The existence of f - f electron transitions could influence the relaxation processes, which play an important role in intensity determination of the above transitions. For many investigated samples the energy levels of excited states of rare earth ions were identified (f - f electron transitions). The radiation energy for some of the rare earth ions were compared with the d-d electron transitions of certain copper(II) organometallic complexes, which are very important in biogenic systems. The correlation between ions with localized and extended wave functions is suggested.	en
heal.journalName	Acta Physica Polonica A	en
dc.identifier.volume	103	en
dc.identifier.issue	2-3	en
dc.identifier.spage	301	en
dc.identifier.epage	313	en