String of Fe(III), Cu(II), Zn(II) and Zr(IV) complexes were synthesized with tetradentateamino Schiff base ligand derived by condensation of ethylene diamine with gemifloxacin. The novel Schiff base (4E,4′E)-4,4′-(ethane-1,2-diyldiazanylylidene)bis{7-[(4Z)-3-(aminomethyl)-4-(methoxyimino)pyrrolidin-1-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid} (GMFX-en) and its metal complexes were identified and confirmed by elemental analyses, FT-IR, UV/VIS, ¹H-NMR spectra, magnetic susceptibility, conductometric measurements and thermal analyses. The FT-IR spectral data showed the chelation behavior of GMFX-en toward the metal ions through oxygen of carboxylate group and nitrogen of azomethine group. In the light of all spectral data, these complexes presumably have octahedral geometry configurations. Thermal analysis specified that the decaying of the metal complexes exist in two or three steps with the final residue metal oxides. Antimicrobial activity of the new prepared metal complexes was screened against some common phytopathogens and their mode of action has been also discussed. The potential phytotoxic effectiveness of the new complexes was furthermore inspected on two commonly experimental plants. The complexes showed significant antimicrobial and phytotoxic effects against the majority of tested phytopathogens and the two tested plants, respectively. The potential antimicrobial activity of the complexes proved their possibility to be used successfully in agropharmacutical industry to control many serious phytopathogens. The phytotoxicity of the studied complexes also indicated their possibility as potential bio-based herbicides alternatives to weed control in crop fields.

中文翻译：

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新型吉米沙星席夫碱金属配合物的生化特性、植物毒性作用和对一些植物病原体的抗菌活性

Fe(III)、Cu(II)、Zn(II) 和 Zr(IV) 复合物的链是用​​四齿氨基希夫碱配体合成的，该配体是通过乙二胺与吉米沙星的缩合得到的。新型席夫碱 (4 E ,4' E )-4,4'-(乙烷-1,2-二氮杂亚基)双{7-[(4 Z )-3-(氨基甲基)-4-(甲氧基亚氨基)吡咯烷- 1-基]-1-环丙基-6-氟-1,4-二氢-1,8-萘啶-3-羧酸}（GMFX-en）及其金属配合物通过元素分析、FT-IR得到鉴定和确认, 紫外/可见光, ¹H-NMR 谱、磁化率、电导测量和热分析。FT-IR光谱数据显示GMFX-en通过羧酸根的氧和偶氮甲碱的氮对金属离子的螯合行为。根据所有光谱数据，这些配合物可能具有八面体几何构型。热分析表明金属配合物的衰变与最终残留的金属氧化物分两步或三步存在。新制备的金属配合物对一些常见植物病原体的抗菌活性进行了筛选，还讨论了它们的作用方式。此外，在两种常见的实验植物上检查了新复合物的潜在植物毒性效力。该复合物分别对大多数受试植物病原体和两种受试植物显示出显着的抗菌和植物毒性作用。这些复合物的潜在抗菌活性证明它们有可能成功地用于农业制药工业以控制许多严重的植物病原体。研究的复合物的植物毒性也表明它们作为潜在的生物基除草剂替代作物田杂草控制的可能性。