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	2014-03-01T01:53:06Z
dc.date.available	2014-03-01T01:53:06Z
dc.date.issued	2003	en
dc.identifier.issn	0587-4246	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26850
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	SINGLE-CRYSTALS	en
dc.subject.other	DNA	en
dc.subject.other	LUMINESCENCE	en
dc.subject.other	FLUORESCENCE	en
dc.subject.other	EFFICIENCY	en
dc.subject.other	SEQUENCE	en
dc.subject.other	EUROPIUM	en
dc.subject.other	ALCOHOL	en
dc.subject.other	CHELATE	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	journalArticle	en
heal.language	English	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 pi --> pi* type located mainly on the C=N group and the n --> pi* 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.publisher	POLISH ACAD SCIENCES INST PHYSICS	en
heal.journalName	ACTA PHYSICA POLONICA A	en
dc.identifier.isi	ISI:000181875600021	en
dc.identifier.volume	103	en
dc.identifier.issue	2-3	en
dc.identifier.spage	301	en
dc.identifier.epage	313	en