{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T19:27:24Z","timestamp":1791919644202,"version":"4.3.4"},"reference-count":46,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2023,11,8]],"date-time":"2023-11-08T00:00:00Z","timestamp":1699401600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"111 Project of MOE","award":["111-2-17"],"award-info":[{"award-number":["111-2-17"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>A pyridine-tricarboxylic acid, 5-(3\u2032,5\u2032-dicarboxylphenyl)nicotinic acid (H3dpna), was employed as a adjustable block to assemble a series of coordination polymers under hydrothermal conditions. The seven new coordination polymers were formulated as [Co(\u03bc3-Hdpna)(\u03bc-dpey)]n\u00b7nH2O (1), [Zn4.5(\u03bc6-dpna)3(phen)3]n (2), [Co1.5(\u03bc6-dpna)(2,2\u2032-bipy)]n (3), [Zn1.5(\u03bc6-dpna)(2,2\u2032-bipy)]n (4), [Co3(\u03bc3-dpna)2(4,4\u2032-bipy)2(H2O)8]n\u00b72nH2O (5),[Co(bpb)2(H2O)4]n[Co2(\u03bc3-dpna)2(H2O)4]n\u00b73nH2O (6), and [Mn1.5(\u03bc6-dpna)(\u03bc-dpea)]n (7), wherein 1,2-di(4-pyridyl)ethylene (dpey), 1,10-phenanthroline (phen), 2,2\u2032-bipyridine(2,2\u2032-bipy),4,4\u2032-bipyridine(4,4\u2032-bipy),1,4-bis(pyrid-4-yl)benzene (bpb), and 1,2-di(4-pyridyl)ethane (dpea) were employed as auxiliary ligands. The structural variation of polymers 1\u20137 spans the range from a 2D sheet (1\u20134, 6, and 7) to a 3D metal\u2013organic framework (MOF, 5). Polymers 1\u20137 were investigated as heterogeneous catalysts in the Knoevenagel condensation reaction, leading to high condensation product yields (up to 100%) under optimized conditions. Various reaction conditions, substrate scope, and catalyst recycling were also researched. This work broadens the application of H3dpna as a versatile tricarboxylate block for the fabrication of functional coordination polymers.<\/jats:p>","DOI":"10.3390\/molecules28227474","type":"journal-article","created":{"date-parts":[[2023,11,8]],"date-time":"2023-11-08T07:02:05Z","timestamp":1699426925000},"page":"7474","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Hydrothermal Assembly, Structural Multiplicity, and Catalytic Knoevenagel Condensation Reaction of a Series of Coordination Polymers Based on a Pyridine-Tricarboxylic Acid"],"prefix":"10.3390","volume":"28","author":[{"given":"Xiuqi","family":"Kang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Ren","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenzhong","family":"Mei","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7509-7939","authenticated-orcid":false,"given":"Xiaoxiang","family":"Fan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jijun","family":"Xue","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongliang","family":"Shao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6704-7370","authenticated-orcid":false,"given":"Jinzhong","family":"Gu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3751","DOI":"10.1021\/acs.chemrev.0c01049","article-title":"Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications","volume":"121","author":"Chakraborty","year":"2021","journal-title":"Chem. 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