<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Guskos, N.</style></author><author><style face="normal" font="default" size="100%">Papadopoulos, G.</style></author><author><style face="normal" font="default" size="100%">V. Likodimos</style></author><author><style face="normal" font="default" size="100%">Mair, G.L.R.</style></author><author><style face="normal" font="default" size="100%">Majszczyk, J.</style></author><author><style face="normal" font="default" size="100%">Typek, J.</style></author><author><style face="normal" font="default" size="100%">Wabia, M.</style></author><author><style face="normal" font="default" size="100%">Grech, E.</style></author><author><style face="normal" font="default" size="100%">Dziembowska, T.</style></author><author><style face="normal" font="default" size="100%">Perkowska, T.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photoacoustic detection of d-d transitions and electronic structure of three polyamine copper complexes</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physics D: Applied Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2000</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034295992&amp;doi=10.1088%2f0022-3727%2f33%2f20%2f320&amp;partnerID=40&amp;md5=9ee45d63d5d4ebedf3318e164d38355d</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">20</style></number><volume><style face="normal" font="default" size="100%">33</style></volume><pages><style face="normal" font="default" size="100%">2664-2668</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The potential of photoacoustic spectroscopy to resolve the crystal field levels of Cu2+ ions in three polyamine copper complexes, aqua spermine copper sulfate trihydrate [NH2(CH2)3NH(CH2)4NH(CH2)3 NH2·Cu2+·H2O]·SO42-·3H2O, norspermine copper sulfate trihydrate [NH2(CH2)3NH(CH2)3NH(CH2)3 NH2·Cu2+·SO42-]·3H2O, and homospermine copper sulfate dihydrate [NH2(CH2)3 NH(CH2)2NH(CH2)3 NH2·Cu2+·SO42-]·2H2O, has been explored along with UV/VIS and electron paramagnetic resonance (EPR) spectroscopy. Intense absorption is detected in the photoacoustic spectrum corresponding to the d-d transition band weakly traced in the corresponding optical spectrum. The observed fine structure photoacoustic lines are assigned to the individual d-d transitions of Cu2+ ions, which are further exploited to determine the diverse metal-ligand interaction of the studied compound employing simple crystal field analysis.</style></abstract><notes><style face="normal" font="default" size="100%">cited By 13</style></notes></record></records></xml>