@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00703665v1> a dcat:Dataset ;
    dct:description """
              A series of new photochromic fused-naphthopyrans with an alkyl bridge between the pyran ring and the naphthalenic core was synthesized in several steps from 4-(bromomethyl)benzocoumarin. The presence of the alkyl bridge in these new fused-naphthopyrans prevents the formation of one long-lived photoisomer and therefore has a dramatic effect on their photochromic properties: UV irradiation of common naphthopyrans gives rise to two isomeric colored photoisomers, one of which fades very slowly and is responsible for a persistent residual color. UV excitation of these new uncolored fused-naphthopyrans leads to the formation of only one colored photoisomer that fades completely to the uncolored state in few seconds/minutes following a monoexponential decay law, thus avoiding the problem of the residual coloration typically observed with naphthopyrans.
            """ ;
    dct:identifier "hal-00703665" ;
    dct:issued "2026-05-16T06:49:15.569873"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-16T06:49:15.569880"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Photochromic fused-naphthopyrans without residual color" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00703665v1/resource/407d2311-2f04-4290-8748-9faf62ae3fe9> ;
    dcat:keyword "chimtheochemical-sciencestheoretical-andor-physical-chemistry",
        "infoeu-reposemanticsarticle",
        "journal-articles" ;
    dcat:landingPage <ISSN:%200022-3263> .

<ISSN:%200022-3263> a foaf:Document .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00703665v1/resource/407d2311-2f04-4290-8748-9faf62ae3fe9> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-16T06:49:15.582514"^^xsd:dateTime ;
    dct:modified "2026-05-16T06:49:15.553458"^^xsd:dateTime ;
    dct:title "Photochromic fused-naphthopyrans without residual color" ;
    dcat:accessURL <https://hal.science/hal-00703665> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .