S in the nano scale and making sophisticated nanostructures. These advanced nanostructures of zinc oxide led to improve its capability to suppress charges of recombination, narrowing its band gap energy and creating powerful photocatalysts in sunlight.Author Contributions: Conceptualization, O.S.; methodology, O.S.; formal analysis, N.M.S., F.A. and S.K.; Sources, O.S., N.M.S. and a.A.; Visualization, S.K. and F.A.; supervision, A.A.; project administration, O.S.; funding acquisition, O.S.; writing–original draft preparation, O.S.; writing– review and editing, F.A., S.K. and a.A. All authors have read and agreed towards the published version with the manuscript. Funding: This operate was funded by the Deanship of Scientific Study at King Faisal University beneath Nasher Track (Grant No. 216055). Information Availability Statement: Data is available based on affordable request. Acknowledgments: The authors acknowledge the Deanship of Scientific Study at King Faisal University for economic assistance under Nasher Track (Grant No. 216055). Conflicts of Interest: The authors declare no conflict of interest.crystalsArticleSynthesis, Crystal Structure, and Luminescent Properties of a brand new Holmium(III) Coordination Polymer Involving 2,5-Dihydroxy-1,4-terephthalic Acid Dianion as LigandJiaqi Li 1,2 , Linan Dun three , Fanming Zeng 1,2, , Chun Li 1,2 and Zhongmin Su 1,2, College of Materials Science and Engineering, Changchun University of Science and Technologies, Changchun 130022, China; [email protected] (J.L.); [email protected] (C.L.) Jilin Provincial Science and Technologies Innovation Center of Optical Materials and Chemistry, Changchun 130022, China School of Supplies Science and Engineering, Northeastern University, Aluminum Hydroxide Epigenetic Reader Domain Shenyang 110006, China; [email protected] Correspondence: [email protected] (F.Z.); [email protected] (Z.S.)Citation: Li, J.; Dun, L.; Zeng, F.; Li, C.; Su, Z. Synthesis, Crystal Structure, and Luminescent Properties of a new Holmium(III) Coordination Polymer Involving two,5-Dihydroxy-1,4terephthalic Acid Dianion as Ligand. Crystals 2021, 11, 1294. https:// doi.org/10.3390/cryst11111294 Academic Editors: Ana M. Garcia-Deibe and Jes Sanmart -Matalobos Received: 21 September 2021 Accepted: 21 October 2021 Published: 26 OctoberAbstract: A novel coordination polymer [Ho2 (DHTA)3 (H2O)5 ] 2 On (1) was synthesized by hydrothermal Bensulfuron-methyl medchemexpress synthesis (DHTA = two,5-dihydroxy-1,4-terephthalic acid anion). The crystallographic information show that complex 1 crystallizes within a triclinic system with space group P 1, with a = 9.6617(17) b = 11.902(2) c = 13.284(2) = 100.617(3) , = 92.765(2) , = 106.715(2) , V = 1429.6(four) , Z = two, C24 H24 O24 Ho2 , and Mr = 1026.290. Complex 1 consists of two eight-coordinated metal centers Ho(III). The TGA outcomes show that the weight-loss can be ascribed for the removal on the organic element from 400 to 650 C. At the temperature above 650 C, the residue is Holmium(III) oxide (Ho2 O3). The luminescent outcomes reveal that the complicated has prospective application as a brand new green luminescence material. Key phrases: holmium(III); luminescence property; coordination polymer; crystal structure; 2,5dihydroxyl-1,4-terephthalic acid1. Introduction Metal-organic frameworks (MOFs) are organic norganic hybrid materials which are composed of inorganic nodes connected by organic ligands by way of the self-assembly process [1]. In recent years, MOFs have received a considerable level of attention due to their devise properties: luminescence, catalysis, magn.