{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T15:56:39Z","timestamp":1791302199087,"version":"4.1.0"},"reference-count":35,"publisher":"American Chemical Society (ACS)","issue":"39","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002241","name":"Japan Science and Technology Agency","doi-asserted-by":"publisher","award":["JPMJFS2144"],"award-info":[{"award-number":["JPMJFS2144"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The reaction of diethyl 2-hydroxyazulene-1,3-dicarboxylate (DEHA) with zinc species (Zn(OAc)2 and ZnCl2) in the presence of various alkali metal carbonates (M2CO3) was investigated. The resulting complexes were characterized by nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy, elemental analysis, mass spectrometry, single-crystal X-ray structural analysis, and UV\u2013vis and fluorescence spectroscopy. The reaction between DEHA and Zn(OAc)2 in the presence of Rb2CO3 or K2CO3 as bases afforded Zn-DEHA-Rb or Zn-DEHA-K, respectively, where three DEHA anions were coordinated to Zn2+, with an alkali metal ion as the counter cation. On the other hand, the reaction between DEHA and Zn(OAc)2 in the presence of Na2CO3 afforded Zn-DEHA-Na-1, in which four DEHA anions were coordinated to two Zn2+ and Na+, with two acetoxy ions present. The reaction between DEHA and ZnCl2 in the presence of Na2CO3 provided Zn-DEHA-Na-2, where three DEHA anions were coordinated to Zn2+, with Na+ as the countercation. The zinc complexes exhibited S1 emission despite differences in their structures. Furthermore, the synthesized complexes were mixed with poly(methyl methacrylate) to form composite films.<\/jats:p>","DOI":"10.1021\/acsomega.6c08016","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T13:01:52Z","timestamp":1790082112000},"page":"60289-60299","source":"Crossref","is-referenced-by-count":0,"title":["Synthesis and Characterization\nof Zinc Complexes with\nDiethyl 2-Hydroxyazulene-1,3-dicarboxylate as a Ligand"],"prefix":"10.1021","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-8765-3628","authenticated-orcid":true,"given":"Tatsuya","family":"Iwashina","sequence":"first","affiliation":[{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoga","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9816-9215","authenticated-orcid":true,"given":"Takuya","family":"Sagawa","sequence":"additional","affiliation":[{"name":"Tokyo University of Science , , 6-3-1 Niijuku , Katsushika-ku, ,","place":["Tokyo, Japan, 125-8585"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohiro","family":"Imai","sequence":"additional","affiliation":[{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6861-3944","authenticated-orcid":true,"given":"Kazuki","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4658-6882","authenticated-orcid":true,"given":"Takahiro","family":"Gunji","sequence":"additional","affiliation":[{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]},{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]},{"name":"Tokyo University of Science , , 2641 Yamazaki , , ,","place":["Noda, Chiba, Japan, 278-8510"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,22]]},"reference":[{"key":"2026100610491798100_cit1","doi-asserted-by":"publisher","DOI":"10.1002\/asia.202500166","volume":"20","author":"Shoji","year":"2025","journal-title":"Chem.\n- Asian J."},{"key":"2026100610491798100_cit2","doi-asserted-by":"publisher","first-page":"2698","DOI":"10.1021\/acs.accounts.2c00453","volume":"55","author":"Veys","year":"2022","journal-title":"Acc. 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