{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T14:33:04Z","timestamp":1790087584814,"version":"4.0.1"},"reference-count":100,"publisher":"Wiley","issue":"64","license":[{"start":{"date-parts":[[2024,10,29]],"date-time":"2024-10-29T00:00:00Z","timestamp":1730160000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001843","name":"Science and Engineering Research Board","doi-asserted-by":"publisher","award":["CRG\/2021\/001247"],"award-info":[{"award-number":["CRG\/2021\/001247"]}],"id":[{"id":"10.13039\/501100001843","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2024,11,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Photoswitchable (pre)catalysts, <jats:italic>N<\/jats:italic>,<jats:italic>N\u2032<\/jats:italic>\u2010bis\u2010azobenzene\u2010based (NHC)gold(I) and <jats:italic>N<\/jats:italic>,<jats:italic>N\u2032<\/jats:italic>\u2010bis\u2010azobenzene\u2010derived (NHC)copper(I) complexes are reported. <jats:italic>Trans<\/jats:italic> to <jats:italic>cis<\/jats:italic> isomerization of the attached photoswitchable moieties in the Au(I) complex enables four\u2010fold decrement in the rate of oxazoline formation reaction. Whereas the progress of the copper(I) catalyzed, azide\u2010alkyne cycloaddition reaction gets reduced by at least threefold. Alternate exposure to UV and blue light could easily toggle the rate of reactions remotely. The catalytic activity of thermodynamically stable <jats:italic>trans\u2010trans<\/jats:italic> isomers is found to be similar to the common <jats:italic>N<\/jats:italic>\u2010aryl substituted NHC\u2212Au\/Cu(I) complexes. NHC\u2212Au(I) and \u2212Cu(I) compounds bearing (<jats:italic>trans<\/jats:italic>)azobenzene moieties were characterized by X\u2010ray diffraction. Photoswitching, recyclability studies, and the metastable isomer's thermal half\u2010life in both complexes were studied via UV\u2010visible spectroscopy. Whereas the extent of photoswitching and concomitant formation of geometrical isomers were investigated by using <jats:sup>1<\/jats:sup>H\u2010NMR spectroscopic study. Calculated percentage buried volumes of the three geometrical isomers show the trend <jats:italic>trans\u2010trans<\/jats:italic>&lt;<jats:italic>trans\u2010cis<\/jats:italic>&lt;<jats:italic>cis\u2010cis<\/jats:italic>.<\/jats:p>","DOI":"10.1002\/chem.202402381","type":"journal-article","created":{"date-parts":[[2024,9,4]],"date-time":"2024-09-04T03:53:22Z","timestamp":1725422002000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Azobenzene\u2010Attached (NHC)Gold(I) and (NHC)Copper(I) Complexes as Photoswitchable Catalysts"],"prefix":"10.1002","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7287-7675","authenticated-orcid":false,"given":"Aminul","family":"Islam Sk","sequence":"first","affiliation":[{"name":"Department of Oils, Oleochemicals and Surfactants Technology Institute of Chemical Technology  N. P. Marg, Matunga, Mumbai 400019 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1088-1409","authenticated-orcid":false,"given":"Ayan","family":"Ghosh","sequence":"additional","affiliation":[{"name":"Laser and Plasma Technology Division Bhabha Atomic Research Centre  Mumbai 400085 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1606-2594","authenticated-orcid":false,"given":"Kshama","family":"Kundu","sequence":"additional","affiliation":[{"name":"Bio-Organic Division Bhabha Atomic Research Centre  Mumbai 400085 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-7099-5779","authenticated-orcid":false,"given":"Indukumari","family":"Murugan","sequence":"additional","affiliation":[{"name":"Department of Oils, Oleochemicals and Surfactants Technology Institute of Chemical Technology  N. P. Marg, Matunga, Mumbai 400019 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1303-0052","authenticated-orcid":false,"given":"Pintu K.","family":"Kundu","sequence":"additional","affiliation":[{"name":"Department of Oils, Oleochemicals and Surfactants Technology Institute of Chemical Technology  N. P. Marg, Matunga, Mumbai 400019 India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,29]]},"reference":[{"key":"e_1_2_8_1_1","unstructured":"\u00a0"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1039\/C4CY01597E"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1039\/C5CS00096C"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201000146"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201204567"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tetlet.2017.12.070"},{"key":"e_1_2_8_7_1","unstructured":"\u00a0"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.8b00067"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature13384"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1039\/C7CC00255F"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00001a054"},{"key":"e_1_2_8_12_1","unstructured":"\u00a0"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.orglett.7b01105"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200700228"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201001865"},{"key":"e_1_2_8_16_1","unstructured":"\u00a0"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.6b00695"},{"key":"e_1_2_8_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr900074m"},{"key":"e_1_2_8_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr068372z"},{"key":"e_1_2_8_20_1","unstructured":"\u00a0"},{"key":"e_1_2_8_21_2","doi-asserted-by":"publisher","DOI":"10.1039\/C1CS15179G"},{"key":"e_1_2_8_22_2","doi-asserted-by":"publisher","DOI":"10.1039\/c1cs15023e"},{"key":"e_1_2_8_23_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp504999f"},{"key":"e_1_2_8_24_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja021363x"},{"key":"e_1_2_8_25_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00289-012-0792-0"},{"key":"e_1_2_8_26_1","unstructured":"\u00a0"},{"key":"e_1_2_8_27_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja029331x"},{"key":"e_1_2_8_28_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200802050"},{"key":"e_1_2_8_29_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja807694s"},{"key":"e_1_2_8_30_2","doi-asserted-by":"publisher","DOI":"10.1021\/ol902166a"},{"key":"e_1_2_8_31_2","doi-asserted-by":"publisher","DOI":"10.1039\/c39810000094"},{"key":"e_1_2_8_32_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200600164"},{"key":"e_1_2_8_33_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja104260n"},{"key":"e_1_2_8_34_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3927(20010301)22:6<448::AID-MARC448>3.0.CO;2-W"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.1c04281"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CC01726E"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.4c01138"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201905161"},{"key":"e_1_2_8_39_1","unstructured":"\u00a0"},{"key":"e_1_2_8_40_2","doi-asserted-by":"publisher","DOI":"10.1039\/c3cc42424c"},{"key":"e_1_2_8_41_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja304067k"},{"key":"e_1_2_8_42_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201105032"},{"key":"e_1_2_8_43_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.5b00426"},{"key":"e_1_2_8_44_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201506269"},{"key":"e_1_2_8_45_1","unstructured":"\u00a0"},{"key":"e_1_2_8_46_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr500691k"},{"key":"e_1_2_8_47_2","doi-asserted-by":"publisher","DOI":"10.1139\/v05-087"},{"key":"e_1_2_8_48_2","doi-asserted-by":"publisher","DOI":"10.1039\/b711132k"},{"key":"e_1_2_8_49_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar1000764"},{"key":"e_1_2_8_50_2","doi-asserted-by":"publisher","DOI":"10.1039\/D0CC05999D"},{"key":"e_1_2_8_51_1","unstructured":"\u00a0"},{"key":"e_1_2_8_52_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.dyepig.2011.04.014"},{"key":"e_1_2_8_53_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic050429x"},{"key":"e_1_2_8_54_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic202265u"},{"key":"e_1_2_8_55_2","doi-asserted-by":"publisher","DOI":"10.1021\/om1000919"},{"key":"e_1_2_8_56_2","doi-asserted-by":"publisher","DOI":"10.1021\/om0609719"},{"key":"e_1_2_8_57_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3dt51565f"},{"key":"e_1_2_8_58_1","unstructured":"\u00a0"},{"key":"e_1_2_8_59_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.6b00517"},{"key":"e_1_2_8_60_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.7b00270"},{"key":"e_1_2_8_61_2","doi-asserted-by":"publisher","DOI":"10.1039\/C5CC01578B"},{"key":"e_1_2_8_62_1","unstructured":"\u00a0"},{"key":"e_1_2_8_63_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr0783479"},{"key":"e_1_2_8_64_2","doi-asserted-by":"publisher","DOI":"10.1039\/c2cy20816d"},{"key":"e_1_2_8_65_2","doi-asserted-by":"publisher","DOI":"10.3762\/bjoc.19.102"},{"key":"e_1_2_8_66_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2017.10.013"},{"key":"e_1_2_8_67_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja064041s"},{"key":"e_1_2_8_68_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1359-6446(03)02933-7"},{"key":"e_1_2_8_69_1","unstructured":"\u00a0"},{"key":"e_1_2_8_70_2","doi-asserted-by":"publisher","DOI":"10.1021\/ma061557n"},{"key":"e_1_2_8_71_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200454078"},{"key":"e_1_2_8_72_1","unstructured":"\u00a0"},{"key":"e_1_2_8_73_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1109778"},{"key":"e_1_2_8_74_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200604050"},{"key":"e_1_2_8_75_2","doi-asserted-by":"publisher","DOI":"10.1002\/marc.200800208"},{"key":"e_1_2_8_76_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr900138t"},{"key":"e_1_2_8_77_1","unstructured":"\u00a0"},{"key":"e_1_2_8_78_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tetlet.2010.10.166"},{"key":"e_1_2_8_79_2","doi-asserted-by":"publisher","DOI":"10.1039\/C3PY01064C"},{"key":"e_1_2_8_80_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201203014"},{"key":"e_1_2_8_81_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200462538"},{"key":"e_1_2_8_82_1","unstructured":"\u00a0"},{"key":"e_1_2_8_83_2","doi-asserted-by":"crossref","unstructured":"TURBOMOLE is a program package developed by the Quantum Chemistry Group at the University of Karlsruhe Germany: R. Ahlrichs M. B\u00e4r M. H\u00e4ser H. Horn C. K\u00f6lmel Chem. Phys. Lett.1988 162 165\u2013169;","DOI":"10.1016\/0009-2614(89)85118-8"},{"key":"e_1_2_8_84_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevA.38.3098"},{"key":"e_1_2_8_85_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.33.8822"},{"key":"e_1_2_8_86_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.theochem.2003.12.015"},{"key":"e_1_2_8_87_1","unstructured":"\u00a0"},{"key":"e_1_2_8_88_2","doi-asserted-by":"publisher","DOI":"10.1039\/C6DT01641C"},{"key":"e_1_2_8_89_2","doi-asserted-by":"publisher","DOI":"10.1039\/C6DT02181F"},{"key":"e_1_2_8_90_2","doi-asserted-by":"publisher","DOI":"10.1021\/om500240h"},{"key":"e_1_2_8_91_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201404539"},{"key":"e_1_2_8_92_2","doi-asserted-by":"publisher","DOI":"10.1021\/cs501681f"},{"key":"e_1_2_8_93_1","unstructured":"\u00a0"},{"key":"e_1_2_8_94_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.7b00270"},{"key":"e_1_2_8_95_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201604615"},{"key":"e_1_2_8_96_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.organomet.6b00517"},{"key":"e_1_2_8_97_2","doi-asserted-by":"publisher","DOI":"10.1039\/C5CC01578B"},{"key":"e_1_2_8_98_1","unstructured":"\u00a0"},{"key":"e_1_2_8_99_2","doi-asserted-by":"publisher","DOI":"10.1039\/C4OB01350F"},{"key":"e_1_2_8_100_2","doi-asserted-by":"publisher","DOI":"10.1021\/ol102858u"}],"container-title":["Chemistry \u2013 A European Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/chem.202402381","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T16:07:44Z","timestamp":1760285264000},"score":1,"resource":{"primary":{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/10.1002\/chem.202402381"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,10,29]]},"references-count":100,"journal-issue":{"issue":"64","published-print":{"date-parts":[[2024,11,15]]}},"alternative-id":["10.1002\/chem.202402381"],"URL":"https:\/\/doi.org\/10.1002\/chem.202402381","archive":["Portico"],"relation":{},"ISSN":["0947-6539","1521-3765"],"issn-type":[{"value":"0947-6539","type":"print"},{"value":"1521-3765","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,10,29]]},"assertion":[{"value":"2024-06-21","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-10-29","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e202402381"}}